Earthquakes
My Blogs (olelog) are mainly based on my daily
reading of earth science news.
Here on whatonearth.olehnielsen.dk I try to weave
some of the pieces together to a greater whole with added background info.
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Earthquakes |
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My Blogs (olelog) are mainly based on my daily
reading of earth science news.
Here on whatonearth.olehnielsen.dk I try to weave
some of the pieces together to a greater whole with added background info.
|
||
As of 24 February 2007 I am not giving the USGS link any more. In most cases it is broken after a week anyway. Instead I'll give the Geographic coordinates (again as of 24 February). For periods where I have been away from home for more than a week some of information may be missing. Needless to say that my information is still based on the U.S. Geological Survey Earthquake Hazards Program
| Time | Location | Magnitude | Depth | Geographic coordinates |
| Wednesday, December 26, 2007 at 22:04:56 UTC |
Aleutian islands, Alaska | 6.5 | 35 km | 52.670°N, 168.271°W |
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| Tuesday, December 25, 2007 at 14:04:34 UTC |
Honshu, Japan | 6.0 | 49.9 km | 38.502°N, 141.969°E |
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| Saturday, December 22, 2007 at 07:11:11 UTC |
Papua, Indonesia | 6.4 | 36.6 km | 2.418°S, 139.061°E |
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| Thursday, December 20, 2007 at 07:55:19 UTC |
North Island of New Zealand | 6.2 | 20 km | 38.842°S, 177.930°E |
| Wednesday, December 19, 2007 at 09:30:30 UTC |
Aleutian islands, Alaska | 7.2 | 56.3 km | 51.495°N, 179.473°W |
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| Sunday, December 16, 2007 at 08:09:20 UTC |
Antofagasta, Chile | 6.7 | 54.8 km | 22.555°S, 69.984°W |
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| Saturday, December 15, 2007 at 09:39:49 UTC |
Indonesia | 6.3 | 20.3 km | 6.652°S, 131.189°E |
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| Thursday, December 13, 2007 at 15:51:29 UTC |
Samoa Islands | 6.2 | 33 km | 15.178°S, 172.402°W |
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| Thursday, December 13, 2007 at 07:23:46 UTC |
Antofagasta, Chile | 6.2 | 58.7 km | 23.013°S, 70.340°W |
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| Sunday, December 09, 2007 at 07:28:20 UTC |
Fiji Islands | 7.8 | 149.2 km | 25.872°S, 177.517°W |
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| Thursday, November 29, 2007 at 19:00:19 UTC |
Windward Islands | 7.4 | 143.1 km | 14.951°N, 61.241°W |
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Tectonic Summary The Martinique earthquake 29 November 2007 occurred in the inclined seismic zone that dips to the west beneath the Lesser Antilles islands arc. In the region of Martinique, the South America plate moves to the west-northwest with respect to the Caribbean plate with a velocity of about 2 cm/yr. This relative motion is accommodated largely by the South America plate thrusting beneath the Caribbean plate. The earthquake occurred within the subducted South America plate, in response to stresses generated by plate's slow distortion, rather on the thrust fault that constitutes the interface the between the Caribbean and South America plates. The subducted South American plate is seismically active to depths of almost 200 km beneath the Lesser Antilles island arc near Martinique. Earthquakes, such as this one, that have focal-depths between 70 and 300 km are commonly termed "intermediate-depth" earthquakes. Intermediate-depth earthquakes typically cause less damage on the ground surface above their foci than is the case with similar magnitude shallow-focus earthquakes, but large intermediate-depth earthquakes may be damaging nonetheless and may be felt at great distance from their epicenters (Source: USGS) |
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| Tuesday, November 27, 2007 at 11:50:01 UTC |
Solomon Islands | 6.6 | 41.6 km | 11.021°S, 162.166°E |
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| Tuesday, November 27, 2007 at 04:27:01 UTC |
Luzon, Philippines | 6.0 | 62.5 km | 16.037°N, 119.906°E |
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| Sunday, November 25, 2007 at 16:02:17 UTC |
Sumbawa Region, Indonesia | 6.4 | 30 km | 8.299°S, 118.385°E |
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| Thursday, November 22, 2007 at 08:48:31 UTC |
Papua New Guinea | 6.7 | 77.5 km | 5.843°S, 147.022°E |
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| Tuesday, November 20, 2007 at 12:52:59 UTC |
Bougainville Region, Papua New Guinea | 6.0 | 50.8 km | 6.807°S, 155.617°E |
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| Monday, November 19, 2007 at 00:52:11 UTC |
Fiji Region | 6.3 | 551.4 km | 21.070°S, 178.743°W |
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| Sunday, November 18, 2007 at 05:40:09 UTC |
Jujuy, Argentina | 6.0 | 220.7 km | 22.569°S, 66.221°W |
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| Friday, November 16, 2007 at 03:12:59 UTC |
Peru-Ecuador Border Region | 6.7 | 119 km | 2.304°S, 77.793°W |
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| Wednesday, November 14, 2007 at 15:40:53 UTC |
Chile | 7.7 | 60 km | 22.189°S, 69.843°W |
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Tectonic Summary The earthquake near Antofagasta, Chile of November 14th 2007 results from the release of stresses generated by the subduction of the oceanic Nazca plate beneath the South American plate. In this region, known as the Peru-Chile subduction zone, the Nazca Plate thrusts beneath South America at a rate of approximately 79mm/year in an east-north-east direction. This earthquake indicates subduction-related thrusting, likely on the interface between these two plates. (Source: USGS) |
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| Friday, November 02, 2007 at 22:31:44 UTC |
Pacific-antarctic Ridge | 6.1 | 10 km | 55.481°S, 128.814°W |
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| Wednesday, October 31, 2007 at 03:30:20 UTC |
Pagan Region, Northern Mariana Islands | 7.2 | 248.3 km | 18.854°N, 145.315°E |
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| Thursday, October 25, 2007 at 13:50:01 UTC hr> |
Kuril Islands | 6.1 | 6.2 km | 46.057°N, 154.114°E |
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| Wednesday, October 24, 2007 at 21:02:51 UTC |
Sumatra | 7.1 | 30 km | 3.909°S, 101.061°E |
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Tectonic Summary: The magnitude 6.8 southern Sumatra earthquake of October 24, 2007 indicates subduction related thrusting on the boundary between the Australian and Sunda plates. At the location of this earthquake, the Australian Plate moves northeast with respect to the Sunda plate at a velocity of approximately 60mm/yr. The October 24th event occurred within the rupture area of the magnitude 8.4 earthquake of September 12, 2007, which had similar fault slip. Since the September 12th earthquake, this section of the subduction zone has remained very active, producing more than 8 events greater than magnitude 6.0. (Source: USGS) |
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| Sunday, October 21, 2007 at 10:24:52 UTC |
Bougainville Region, Papua New Guinea | 6.2 | 46.9 km | 6.325°S, 154.753°E |
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| Tuesday, October 16, 2007 at 21:05:41 UTC |
Fiji | 6.4 | 476.7 km | 25.510°S, 179.501°E |
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| Monday, October 15, 2007 at 12:29:37 UTC |
South Island of New Zealand | 6.8 | 25.4 km | 44.713°S, 167.464°E |
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| Saturday, October 13, 2007 at 17:45:53 UTC |
Loyalty Islands | 6.1 | 40.4 km | 21.242°S, 169.200°E |
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| Saturday, October 06, 2007 at 12:38:54 UTC |
Marianna Islands | 6.0 | 63.8 km | 18.712°N, 147.153°E |
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| Friday, October 05, 2007 at 07:17:53 UTC |
Fiji Islands | 6.3 | 507.9 km | 25.131°S, 179.428°E |
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| Tuesday, October 02, 2007 at 10:00:08 AM at epicenter |
Alaska | 6.2 | 47.9 km | 54.581°N, 161.768°W |
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| Sunday, September 30, 2007 at 05:23:34 UTC |
Auckland Islands, New Zealand | 7.3 | 11 km | 49.416°S, 163.843°E |
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| Sunday, September 30, 2007 at 02:08:29 UTC |
Mariana islands | 6.8 | 10 km | 10.487°N, 145.630°E |
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| Friday, September 28, 2007 at 13:38:58 UTC |
Mariana Islands | 7.4 | 261.3 km | 21.980°N, 142.685°E |
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Tectonic setting: Don't let you mislead by the fact that is is above a spreading ridge. - the quake was deeper and due to the subduction of the Pacific Plate at the Mariana Trench. | |||
| Friday, September 28, 2007 at 01:01:48 UTC |
Loyalty Islands, New Caledonia | 6.4 | 10 km | 21.442°S, 169.368°E |
| Wednesday, September 26, 2007 at 15:43:01 UTC |
Sumatra | 6.4 | 27.6 km | 1.745°S, 99.516°E |
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| Wednesday, September 26, 2007 at 12:36:23 UTC |
New Ireland Region, Papua New Guinea | 6.9 | 10 km | 4.880°S, 153.402°E |
| Thursday, September 20, 2007 at 08:31:15 UTC |
Sumatra | 6.7 | 35 km | 2.040°S, 100.204°E |
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| Wednesday, September 12, 2007 at 23:49:04 UTC |
Sumatra | 7.9 | 30 km | 2.506°S, 100.906°E |
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| Wednesday, September 12, 2007 at 11:10:26 UTC |
Sumatra | 8.4 | 34 km | 4.520°S, 101.374°E |
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Tectonic Summary The magnitude 8.4 and 7.8 southern Sumatra earthquakes of September 12, 2007 occurred as the result of thrust faulting on the boundary between the Australia and Sunda plates. At the location of these earthquakes, the Australia plate moves northeast with respect to the Sunda plate at a velocity of about 60 mm/year. The direction of relative plate motion is oblique to the orientation of the plate boundary offshore of the west coast of Sumatra. The component of plate-motion perpendicular to the boundary is accommodated by thrust faulting on the offshore plate-boundary. Much of the component of plate motion parallel to the plate boundary is accommodated by strike-skip faulting on the Sumatra fault, which is inland on Sumatra proper. (Source: USGS) |
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| Monday, September 10, 2007 at 01:49:11 UTC |
Columbia | 6.8 | 10 km | 2.945°N, 78.069°W |
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| Thursday, September 06, 2007 at 17:51:26 UTC |
Taiwan | 6.1 | 53 km | 24.313°N, 122.255°E |
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| Monday, 3 September 2007 16:14:53 UTC |
Kuril Islands | 6.4 | 94 km | 45.800°N, 150.062°E |
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| Sunday, September 02, 2007 at 01:05:18 UTC |
Santa Cruz Islands | 7.2 | 35 km | 11.510°S, 165.814°E |
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Tectonic Summary The Santa Cruz Islands earthquake of September 2, 2007, occurred along the boundary between the Pacific plate and Australia plates. In the region of the earthquake, the Australia plate moves to the east-northeast with respect to the Pacific plate at a velocity of about 91 mm/y. The Australia plate thrusts under the Pacific plate at the North New Hebrides trench and dips to the east-northeast. The September 2 earthquake’s location and focal mechanism are consistent with the earthquake having occurred as thrust-faulting on the plate interface. The Santa Cruz Islands region experiences a very high level of earthquake activity, with over a dozen shocks of magnitude 7 and larger having been recorded since the early decades of the twentieth century. The subducting Australia plate is seismically active to depths of about 250 km beneath the islands (Source: USGS) |
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| Sunday, August 26, 2007 at 12:37:31 UTC |
Tonga | 6.0 | 130.4 km | 17.304°S, 174.453°W |
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| Monday, August 20, 2007 at 22:42:28 UTC |
Central Mid-Atlantic Ridge | 6.6 | 10 km | 8.016°N, 39.267°W |
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| Monday, August 20, 2007 at 13:46:18 UTC |
Philippines | 6.5 | 10.1 km | 6.130°N, 127.434°E |
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| Sunday, August 19, 2007 at 12:32:20 AM at epicenter |
Southeast of the Loyalty Islands | 6.0 | 35 km | 22.192°S, 174.716°E |
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| Friday, August 17, 2007 at 03:04:03 UTC |
Banda Sea | 6.2 | 10 km | 5.272°S, 129.513°E |
| Thursday, August 16, 2007 at 08:39:27 UTC |
Solomon Islands | 6.7 | 1.8 km | 9.715°S, 159.335°E |
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| Wednesday, August 15, 2007 at 23:40:56 UTC |
Peru | 7.9 | 30.2 km | 13.358°S, 76.522°W |
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Tectonic Setting: This earthquake occurred at the boundary between the Nazca and South American tectonic plates. The two plates are converging at a rate of 78 mm per year. The earthquake occurred as thrust-faulting on the interface between the two plates, with the South American plate moving up and seaward over the Nazca plate. | |||
| Wednesday, August 15, 2007 at 20:22:13 UTC |
Andreanof Islands, Aleutian Is., Alaska | 6.5 | 21.2 km | 50.568°N, 177.507°W |
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| Wednesday, August 8, 2007 at 17:04:58 (UTC) |
Java, Indinesia | 7.5 | 289.2 km | 5.968°S, 107.655°E |
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| Thursday, August 2, 2007 at 03:21:46 (UTC) |
Andreanof Islands, Aleutian Is., Alaska | 6.5 | 48.2 km | 51.359°N, 179.951°W |
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| Tuesday, July 31, 2007 at 22:55:31 (UTC) |
North of Ascension Island | 6.1 | 10 km | 0.095°S, 17.800°W |
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| Thursday, July 26, 2007 at 05:40:16 (UTC) |
Molucca Sea | 6.9 | 25 km | 2.823°N, 127.482°E |
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| Wednesday, July 25, 2007 at 23:37:34 (UTC) |
Nicobar Islands | 6.1 | 30 km | 7.149°N, 92.502°E |
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| Saturday, July 21, 2007 at 15:34:51 (UTC) |
Argentina | 6.2 | 289.6 km | 22.270°S, 65.752°W |
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| Saturday, July 21, 2007 at 13:27:03 (UTC) |
Brazil | 6.1 | 632.9 km | 7.976°S, 71.130°W |
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| Tuesday, July 17, 2007 at 14:10:43 (UTC) |
Tanzania | 6.0 | 10 km | 2.525°S, 36.409°E |
| Monday, July 16, 2007 at 14:17:37 (UTC) |
Japan | 6.8 | 349 km | 36.788°N, 134.897°E |
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| Monday, July 16, 2007 at 01:13:28 (UTC) |
Honshu, Japan | 6.7 | 55.4 km | 37.574°N, 138.440°E |
| Sunday, July 15, 2007 at 13:08:01 (UTC) |
Fox Islands, Aleutian Islands, Alaska | 6.0 | 10 km | 52.649°N, 168.092°W |
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| Sunday, July 15, 2007 at 09:27:40 (UTC) |
Vanuatu | 6.3 | 46.4 km | 15.386°S, 168.503°E |
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| Friday, July 13, 2007 at 21:54:44 (UTC) |
Andreanof Islands, Aleutian Is., Alaska | 5.9 | 50.3 km | 51.720°N, 176.238°W |
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| Thursday, July 12, 2007 at 05:23:49 (UTC) |
Peru | 6.0 | 152.9 km | 7.929°S, 74.359°W |
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| Friday, July 6, 2007 at 01:09:21 (UTC) |
Chiapas, Mexico | 6.1 | 124.8 km | 16.678°N, 93.479°W |
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| Thursday, June 28, 2007 at 02:52:09 (UTC) |
Papua New Guinea | 6.7 | 10 km | 7.949°S, 154.600°E |
| Tuesday, June 26, 2007 at 22:23:02 (UTC) |
South of Java, Indonesia | 6.0 | 10 km | 10.545°S, 108.065°E |
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Monday, June 18, 2007 at 06:18:46 (UTC) |
Papua New Guinea | 6.1 | 7.8 | 3.557°S, 150.917°E |
| Thursday, June 14, 2007 at 17:41:05 (UTC) |
Papua New Guinea | 6.0 | 43.4 km | 5.705°S, 151.608°E |
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Wednesday, June 13, 2007 at 19:29:41 UTC |
Offshore Guatemala | 6.8 | 23 km | 13.613°N, 90.822°W |
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Thursday, June 7, 2007 at 00:40:40 (UTC) |
Bismarck Sea | 6.2 | 22.6 km | 3.377°S, 146.763°E |
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Saturday,:2 June 2007 21:34:59(UTC) |
Yunnan, China | 6.2 | 10 km | 23.031°N, 101.023°E |
Wednesday, 30 May 2007 20:22:13 (UTC) |
Kamchatka Peninsula, Russia | 6.4 | 119 km | 52.159°N, 157.319°E |
| Tuesday, 29 May 2007 09:36:04 (UTC)
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Kepulauan Obi, Indonesia | 6.0 | 10 km | 1.137°S, 127.408°E |
Tuesday, 29 May 2007 at 01:03:27 (UTC) |
New Britain, PNG | 6.1 | 128 km | 4.616°S, 151.846°E |
Wednesday, May 16, 2007 at 08:56:16 (UTC) |
Laos (Golden Triangle) | 6.3 | 25.4 km | 20.504°N, 100.766°E |
Sunday, May 6, 2007 at 21:11:52 (UTC) |
Fiji Region | 6.5 | 677.7 km | 19.389°S, 179.333°W |
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Tectonic Setting: Subduction zone west of Tonga Trench where the Pacific Plate is subducted beneath the Australian Plate. | |||
Friday, May 4, 2007 at 12:06:52 (UTC) |
North of Ascension Island | 6.2 | 10 km | 1.523°S, 14.869°W |
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Tectonic Setting: Mid Atlantic Ridge | |||
Sunday, April 29, 2007 at 12:41:58 (UTC) |
Andreanof Island, Aleutian Islands, Alasla | 6.5 | 123.4 km | 52.081°N, 179.979°W |
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Tectonic Setting: Subduction zone, where the Pacific Plate is subducted beneath the North Americn Plate | |||
Wednesday, April 25, 2007 at 13:34:16 (UTC) |
Vanuatu | 6.3 | 69.3 km | 14.287°S, 166.819°E |
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Tectonic Setting: New Hebrides Trench, where the Australian Plate is subducted beneath the New Hebrides Plate | |||
Saturday, April 21, 2007 at 17:53:47 (UTC) |
Aisen, Chile | 6.2 | 38.1 km | 45.266°S, 72.496°W |
Saturday, April 21, 2007 at 07:12:48 (UTC) |
New Ireland Region, Papua New Guinea | 6.3 | 410 km | 3.546°S, 151.284°E |
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Tectonic setting: Bismarck Plate | |||
Friday, April 20, 2007 at 01:45:56 (UTC) |
Southwestern Ryukyu Islands, Japan | 6.1 | 10 km | 25.739°N, 125.222°E |
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Tectonic setting: | |||
Monday, April 16, 2007 at 13:20:38 (UTC) |
West of Macquarie Island | 6.2 | 10 km | 57.953°S, 147.637°E |
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Tectonic setting: The Macquarie Ridge on the boundary between the Australian Plate and the Pacific Plate | |||
Friday, April 13, 2007 at 18:24:19 (UTC) |
Southern East Pacific Rise | 6.1 | 10 km | 35.001°S, 108.791°W |
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Tectonic setting: | |||
Friday, April 13, 2007 at 05:42:23 (UTC) |
Mexico | 6.0 | 28.8 km | 17.398°N, 100.099°W |
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Tectonic setting: North of the triple junction, where the Cocos plate is subducted beneath the North American and the Caribbean plates. | |||
Thursday, April 12, 2007 at 18:24:47 (UTC) |
Balleny Islands | 6.0 | 1.3 km | 61.846°S, 160.662°E |
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Tectonic setting: Near the triple junction of the Australian, Pacific and Antarctica plates. | |||
Wednesday, April 4, 2007 at 11:02:29 (UTC) |
Vanatua | 6.4 | 10 km | 20.727°S, 169.028°E |
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Tectonic setting: New Hebrides Trench where the Australian Plate is subducted beneath the New Hebrides Plate. | |||
Thursday, April 5, 2007 at 03:56:50 (UTC) |
Azores Islands | 6.3 | 10 km | 37.384°N, 24.618°W |
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Tectonic setting: Transform fault. The Azores island group is located in the triple junction region between the North American, Eurasian and African plates. The transform fault forms the connection between the triple junction and the Europe-Africa plate contact in the Gibraltar region. | |||
Tuesday, April 3, 2007 at 20:26:14 (UTC) |
Loyalty Islands | 6.3 | 41.4 km | 320.695°S, 168.864°E |
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Tectonic setting: New Hebrides Trench where the Australian Plate is subducted beneath the New Hebrides Plate. | |||
Tuesday, April 3, 2007 at 03:35:06 (UTC) |
Hindu Kush region, Afghanistand | 6.2 | 210.5 km | 36.528°N, 70.668°E |
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Tectonic setting: Subduction zone between Indian Plate and Eurasian Plate. | |||
Sunday, April 01, 2007 at 20:39:56 UTC |
Solomon Islands | 8.0 | 10 km | 8.453°S, 156.957°E |
| Tectonic setting: Ridge subduction where spreading ridge between Solomon Sea Plate and Australian Plate is being subducted beneath pacific Plate. | ||||
Sunday, March 25, 2007 at 00:41:57 (UTC) |
Near the West Coast of Honshu, Japan | 6.7 | 5 km | 37.281°N, 136.602°E |
| 1 dead. About 200 injured. Extensive damage. Small tsunami (15 cm high). | ||||
Sunday, March 25, 2007 at 00:40:02 (UTC) |
Vanuatu | 7.2 | 35 km | 20.597°S, 169.413°E |
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Tectonic Setting: New Hebrides Trench where the Australian Plate is subducted beneath the New Hebrides Plate. | |||
Sunday, March 18, 2007 at 02:11:05 (UTC) |
South of Panama | 6.3 (Strong) | 31.3 km | 4.556°N, 78.504°W |
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Tectonic Setting: Subduction of the Nazca plate beneath the South American plate | |||
Saturday, March 17, 2007 at 17:42:23 (UTC) |
Moluccas, Indonesia | 6.1 (Strong) | 10 km | 1.128°N, 126.243°E |
| Tectonic Setting: Complex - See Molucca Sea Plate | ||||
Tuesday, March 13, 2007 at 02:59:06 (UTC) |
Golf of California, Mexico | 6.0 | 42 km | 26.305°N, 110.515°W |
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 Tectonic
Setting: The Gulf of California is a unique tectonic transition zone
which progresses from an oceanic ridge-transform system at the mouth of
the gulf to a predominantly continental transform system in southern California.
North of the Gulf the boundary between the Pacific Plate and the North American
Plate continues in the San Andreas Fault. |
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Friday, March 9, 2007 at 03:22:42 (UTC) |
Primorye, Russia | 6.0 | 442 km | 43.214°N, 133.552°E |
Thursday, March 8, 2007 at 05:03:31 (UTC) |
Izu Islands, Japan | 6.1 | 133.2 km | 29.920°N, 140.240°E |
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Tectonic Setting: Izu-Bonin Trench, where the Pacific Plate is subducted under the Philippines Sea Plate. | |||
Tuesday, March 6, 2007 at 03:49:39 (UTC) - followed by a M 6.3 aftershock two hours later |
Southern Sumatra, Indonesia | 6.4 (Strong) | 19 km | 0.512°S, 100.524°E |
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Tectonic Setting: The locations and focal-mechanisms of the Sumatra earthquakes of March 6, 2007, are consistent with these shocks occurring on the Sumatran fault, a 1900 km-long strike-slip fault that extends the length of the island. At the latitude of the earthquake, the average long-term rate of displacement on the fault is about 20 mm/yr.
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Wednesday, February 28, 2007 23:13:20 (UTC) |
South Sandwich Islands Region | 6.2 (Strong) | 35 km | 55.174°S, 29.184°W |
Saturday, February 24, 2007 at 02:36:23 (UTC) |
Near the coast of Northern Peru | 6.2 (Strong) | 15.4 km | 6.915°S, 80.321°W |
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Tectonic Setting: The Pacific Plate subducting beneath the South American Plate | |||
Tuesday, February 20, 2007 at 08:04:27 (UTC) |
Moluccas, Indonesia | 6.5 (Strong) | 31.3 km | |
| Tectonic Setting: Complex - See Molucca Sea Plate | ||||
Saturday, February 17, 2007 at 00:02:57 (UTC) |
Hokkaido, Japan - epicenter some 50 kilometers off Cape Erimo | 6.0 (Strong) 6.6 according to Japanese sources |
35 km | |
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Tectonic Setting: At the border of the Orkhotsk Plate and the Amurian (or Eurasian) Plate Plate, west of the triple junction with the Kuril Trench and the Japan Trench where the Pacific Plate is subducted beneath these two plates. | |||
Sunday, February 4, 2007 at 21:17:52 (UTC)
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Southern East Pacific Rise | 6.1 (Strong) | 10 km | |
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Tectonic Setting: The East Pacific Rise is a long north-south welt of seafloor spreading under the eastern Pacific Ocean from near Antarctica in the south northward to its termination at the northern end of the Gulf of California in the Salton Sea basin in southern California. The rise is a constructive tectonic plate margin or divergent boundary lying along the eastern margin of the Pacific Ocean basin. Slightly to the north of the epicentre of this earthquake the spreading zone separates the Pacific Platefrom the Antarctic Plate to the south. | |||
Sunday, February 4, 2007 at 20:56:58 (UTC) |
Between Cuba and jamaica | 6.2 (Strong) | 10 km | |
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Tectonic Setting: Transform Fault at the boundary between the North American Plate (including Cuba) and the Caribbean Plate south of Cuba. | |||
Wednesday, January 31 2007, at 03:15:55 UTC |
39 km south of Raoul Island, Kermadec Islands, New Zealand | 6.5 (Strong) | 53.7 km | |
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Tectonic setting: The subduction of the Pacific Plate under the Australian Plate. The trench and subduction zone streches northeast from the North Island to the Kermadec Islands, Tonga, and Samoa. (South of the North Island the tectonic boundary between the Australian and Pacific plates changes to a transform fault.) | |||
Tuesday, January 30, 2007 at 21:37:49 UTC |
Mariana Islands Region | 6.3 (Strong) | 49.8 km | |
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Tuesday, January 30, 2007 at 04:54:50 UTC |
West of Macquarie Island | 6.7 (Strong) | 10 km | |
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Tectonic setting: Spreading ridge between Antarctic plate and Australian plate. | |||
Sunday, January 21, 2007 at 11:27:45 UTC |
Molucca Sea, Indonesia | 7.5 (Major) | 10 km | |
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Tectonic setting: Complex (See Molucca Sea Plate | |||
Wednesday, January 17, 2007 at 23:18:50 UTC |
Carksberg Ridge, Indian Ocean | 6.2 (Strong) | 10 km | |
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Tectonic setting: The Carlsberg Ridge is a mid-ocean ridge system located in the Arabian sea between India and Northern Africa. The ridge marks the boundary between the Indian and African plates, i.e. where the Indian plate and the African Plate are moving away from each other. The Carlsberg Ridge is a slow-spreading ridge with rough topography and a depth that varies from 1700-4400 meters. | |||
Saturday, January 13 2007 at 04:23:20 UTC |
East of Kuril Islands | 8.2 (great) | 10 km | |
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Tectonic setting: The Pacific plate moves northwest with respect to the Okhotsk plate with a velocity of about 90 mm/year. The Pacific plate subducts beneath the Okhotsk plate at the Kuril Trench and becomes progressively deeper to the northwest, remaining seismically active to a depth of 680 km. | |||
Monday, January 8, 2007 at 20:52:21 (UTC) |
Fiji Region | 6.2 (strong) | 407 km | |
|
 Tectonic
setting: Although all the Fiji Plate boundaries are spreading ridges,
this is a Benioff zone earthquake. At the Tonga Trench the Pacific Plate
subducts under the Australian Plate and further westward deeper under the
small Fiji Plate. |
|||
Monday, January 8, 2007 at 17:21:50 (UTC) |
Kyrgyzstan | 6.1 (strong) | 23 km | |
 |
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