Recent USGS Significant Earthquakes- M 3.6 - 0km SE of Amherstburg, Canada 2018/04/20
- M 3.8 - 9km NNE of Alum Rock, CA 2018/04/20
- M 4.4 - 17km W of Humboldt Hill, CA 2018/04/20
- M 4.7 - 22km WNW of Petrolia, CA 2018/04/19
- M 6.8 - 11km NNE of Carandayti, Bolivia 2018/04/18
- M 5.3 - 29km SW of Santa Cruz Is. (E end), CA 2018/04/17
- M 4.5 - 27km WSW of Perry, Oklahoma 2018/04/17
- M 4.6 - 20km W of Perry, Oklahoma 2018/04/14
- M 6.2 - 54km SW of Ovalle, Chile 2018/04/13
- M 6.3 - 88km WSW of Porgera, Papua New Guinea 2018/04/09
- Paleoseismicity
- Trembling Earth
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- Landslide Blog
- American Geophysical Union
- Cascadia GeoSciences
- Cascadia GeoSciences 2012/05/23
- Jay’s Research Cruise Blog
- Last Night on the R/V Tangaroa 2016/11/21
- Sunset 2016/11/19
- Earthquake Response Cores 2016/11/18
Category Archives: Indian Ocean
Earthquake Report: Burma!
There was an earthquake in Burma today! The epicenter plotted very close to the Sagaing fault (SF), a major dextral (right-lateral) strike-slip fault system, part of the plate boundary between the India and Eurasia plates. This fault system accommodates much … Continue reading
Posted in asia, collision, earthquake, education, geology, Indian Ocean, plate tectonics, strike-slip
Earthquake Report: Mentawai, Sumatra
We just had an earthquake in the Mentawai region of the Sunda subduction zone offshore of Sumatra. Here is the USGS website for this M 6.3 earthquake. Based upon the hypocentral depth and the current estimate of the location of … Continue reading
Posted in earthquake, education, geology, Indian Ocean, plate tectonics, subduction, sumatra
Earthquake Report: Bengkulu (Sumatra)!
Last night (my time) while I was tending to other business, there was an earthquake along the Sunda Megathrust. Here is the USGS website for this M 6.4 earthquake. This M 6.4 earthquake happened down-dip (“deeper than”) along the megathrust … Continue reading
Posted in asia, earthquake, education, geology, Indian Ocean, Indonesia, plate tectonics, subduction, sumatra
Earthquake Report: Makran subduction zone (Pakistan)!
There was a good sized earthquake along the Makran subduction zone. This subduction zone is a convergent plate boundary where the Arabia plate subducts (goes beneath) northwards under the Eurasia plate. There has been one aftershock reported by the USGS. … Continue reading
Posted in asia, geology, Indian Ocean, plate tectonics, subduction, tsunami
Earthquake Anniversary: Sumatra-Andaman 2004 M 9.2 & 2005 M 8.6
On 26 December 2004 there was an earthquake with a magnitude of M 9.2 along the Sumatra-Andaman subduction zone (SASZ). This earthquake is the third largest earthquake ever recorded by modern seismometers and ruptured nearly 2,000 km of the megathrust … Continue reading
Posted in asia, earthquake, education, geology, HSU, Indian Ocean, plate tectonics, subduction, sumatra, tsunami
Earthquake Report: Java Sea!
Last night as I was finishing work for the day, I noticed an earthquake in the Java Sea, just north of western Java. Here is the USGS website for this M 6.6 earthquake. This earthquake is extensional and plots very … Continue reading
Posted in collision, earthquake, education, geology, HSU, Indian Ocean, Indonesia, plate tectonics, subduction, sumatra
Earthquake Report: Burma!
Well, there was an earthquake about 6 hours ago in Burma. This M 6.8 earthquake was rather deep, which is good for the residents of that area (the ground motions diminish with distance from the earthquake hypocenter). Here is the … Continue reading
Posted in asia, collision, education, geology, HSU, Indian Ocean, plate tectonics, sumatra
Earthquake Report: Sumatra!
We just had a M = 7.8 earthquake southwest of the Island of Sumatra, a volcanic arc formed from the subduction of the India-Australia plate beneath the Sunda plate (part of Eurasia). Here is the USGS website for this earthquake. … Continue reading
Posted in asia, College Redwoods, earthquake, education, geology, HSU, Indian Ocean, Indonesia, plate tectonics, strike-slip, subduction, sumatra, Transform
Earthquake Report: Antarctic plate!
We just had an interesting mid-plate earthquake (not along a plate boundary). Hat Tip to Jascha Polet, who pointed out this is in the region of the 1998 M 8.1 earthquake, one of the largest strike-slip and mid-plate earthquakes ever … Continue reading
Posted in College Redwoods, earthquake, education, geology, HSU, Indian Ocean, New Zealand, pacific, plate tectonics, strike-slip, Transform
Earthquake Report: India!
Today we had a good sized earthquake in eastern India, within the India-Burmese wedge (IBW). The IBW is a part of the convergent plate boundary between the India plate to the west and the Burma (part of Eurasia) plate to … Continue reading
Posted in asia, College Redwoods, collision, earthquake, education, geology, HSU, Indian Ocean, Indonesia, plate tectonics, strike-slip