Today we had a M 8.2 subduction zone earthquake in northern Chile. I have placed some records of this tsunami here. Here is the National Tsunami Warning Center tusnami travel time map for this tsunami. Here is the National Tsunami…
M 8.2 earthquake in northern Chile
Alright. Lets hope not many people are harmed as a result of this earthquake and likely large tsunami. We all know what to do. Drop, duck, cover, and hold on. Run to high ground. Stay there. Check back here for…
Interseismic Fault Coupling: the 2014 March Northern Chile Swarm
Given the paucity of great earthquakes in the region of the recent earthquake swarm along the subduction zone offshore or northern Chile, we are curious to know if there will be a large magnitude earthquake there. The seismologic record of…
Still kicking off some aftershocks in northern Chile
Here is the latest view of the seismicity associated with this earthquake swarm offshore northern Chile. I first mentioned this since I thought it was an interesting region to get some earthquakes. Read more about that on that first page.…
Landslide or Fault Tip?
there were some early reports that used the fault tip movement as a measure of the slip on the fault during the 11 march 2011 Tohoku-Oki earthquake. amazing measurements made with hi res bathy data. i saw a phenomenal 3-D…
M 7.1 offshore Honshu Japan
Extensional earthquake in Pacific plate “up-dip” of the 11 March 2011 Tohoku-Oki earthquake. Here is the USGS page. Here is the moment tensor: Here is a map of the epicenter and Japan: Here is a map of the epicenter and…
Hookton Slough Coring
Tom Leroy and I went to my old coring site 01-BR-05 to make sure it was usable as a field trip stop for my class. We will be going here this coming Wednesday. Thanks Tom for helping me out. I…
Alaska Earthquakes
The 1964 Great Alaska Earthquake occurred on Good Friday, March 27th. It and rocked the state with strong ground shaking for 4.5 minutes. At magnitude 9.2, it was the second largest quake ever recorded by seismometers. This animation shows the…
M 7.1 Panguna, Papua New Guinea
Here is a deep one (currently) and a big one. There may be a local tsunami, but there are no focal mechanisms yet. Ill add those when they become available. Here is a screenshot from the
M 7.0 on the Aleutian subduction zone
Here is another pretty big earthquake. Those on the islands of Adak and Atka probably got shook pretty strongly. The moment tensor shows a compressional earthquake and this is consistent with this setting on a subduction zone. If this EQ…