Category Archives: Extension

Earthquake Report: Turkey!

We had a couple of earthquakes in western Turkey today (in the Aegean Sea offshore of the Island of Lesbos, part of Greece). The M 6.3 earthquake shows evidence for extension (normal fault), based on the moment tensor (read below). … Continue reading

Posted in earthquake, europe, Extension, geology, plate tectonics

Earthquake Report: Sulawesi, Indonesia

There was a series of earthquakes in Sulawesi, Indonesia earlier today, with a mainshock having a magnitude of M 6.8. This series of earthquakes is interesting as it does not occur on the main plate boundary fault, but on upper … Continue reading

Posted in asia, earthquake, education, Extension, Indonesia, plate tectonics

Earthquake Report: Aleutian Trench

Well, well, well. What have we here. We have some earthquakes that are related to each other and some earthquakes that are not. Less than 2 weeks ago there initiated a sequence of earthquakes along a fault splaying off of … Continue reading

Posted in alaska, earthquake, Extension, geology, plate tectonics, strike-slip, subduction

Earthquake Report: Botswana!

This is a very interesting M 6.5 earthquake, which was preceded by a probably unrelated M 5.2 earthquake. Last September, there was an M 5.7 earthquake in Tanzania along the western shores of Lake Victoria. Here is my report for … Continue reading

Posted in africa, earthquake, Extension, geology, HSU, plate tectonics

Earthquake Report: Japan!

While I was returning from my research cruise offshore of New Zealand, there was an earthquake offshore of Japan in the region of the 2011.01.11 M 9.0 Tohoku-Oki Earthquake. Japan is one of the most seismically active regions on Earth. … Continue reading

Posted in asia, earthquake, education, Extension, geology, HSU, Japan, plate tectonics, tsunami

Earthquake Report: Italy Update #1!

Here is an update to the #EarthquakeReport for the M 6.6 earthquake that hit Italy early this morning my time. Ironically, I was preparing a report for earthquakes in the western Pacific for my class when this M 6.6 earthquake … Continue reading

Posted in earthquake, education, europe, Extension, geology, HSU, plate tectonics

Earthquake Report: Italy!

There was just another earthquake in Italy. This one is a larger magnitude M = 6.6. This region has been especially seismically active since August 2016. Here are the USGS websites and Earthquake reports for this region of Italy. 2016.08.23 … Continue reading

Posted in earthquake, education, europe, Extension, geology, HSU, plate tectonics

Earthquake Report: Italy

Italy continues to shake following the Armatrice Earthquake series in August 2016. Here is my report for that series of earthquakes. Today’s earthquakes occurred along the northern end of the earthquakes that happened a few months ago. Today’s series started … Continue reading

Posted in earthquake, education, europe, Extension, geology, HSU, plate tectonics

Earthquake Report: South Bismarck Sea

There was a moderately deep earthquake in the South Bismarck Sea last night. Here is the USGS website for this earthquake. This earthquake has an exentional earthquake. Here, the Solomon Sea plate subducts northward beneath the South Bismarck plate to … Continue reading

Posted in Extension, geology, HSU, Indonesia, plate tectonics, subduction

Earthquake Report: Tanzania

Well, I am a little late preparing this report. I actually put it together over the weekend, but am only now uploading this. There was an interesting earthquake along the southwestern edge of Lake Victoria, in the East-Africa Rift (EAR) … Continue reading

Posted in africa, earthquake, education, Extension, geology, HSU, plate tectonics, strike-slip