A couple days ago, I was on the road and did not yet have my laptop. Therefore I am reporting about this earthquake a few days afterwards… There has been a swarm of seismic activity in the San Bernardino area.…
Earthquake Report: Mendocino fault and Gorda plate!
We just had an earthquake along strike with the Mendocino fault zone. This region is seismically active and there were a number of MF earthquakes in 2015. Here is the USGS web page for today’s M = 4.5 MF earthquake.…
Earthquake Report: Tajikistan!
We just had an earthquake in Tajikistan with a magnitude of M = 7.2. Here is the USGS website for this earthquake. We had a M = 7.5 in Afghanistan in October of 2015, less than 2 months ago. That…
Earthquake Report: Southeast Indian Ridge!
While at the HSU Geology Club Rock Auction last night, there was a large earthquake south of the SE Indian Ridge, between the SE India Ridge and the Kerguelen Plateau. Here is the USGS web page for this M 7.1…
Earthquake Report: Argentina!
We just had an earthquake in Argentina! Here is the USGS web page for this earthquake. At first, I thought, “oh, another deep earthquake.” I looked at the hypocentral depth The hypocenter is the 3-D location of the earthquake, while…
Earthquake Report: Deep in Peru, Update #1
There was an aftershock to the pair of M 7.6 earthquakes in Peru: an earthquake with magnitude M = 6.7 in Brazil. Here is the USGS web page for this earthquake. I reported about the M 7.6 earthquake pair here.…
Earthquake Report: Deep in Peru!
Today we had a series of deep focus earthquakes in Peru. This suite of earthquakes occurred in a region that ruptured in the 1960s and recently in 1990. Further to the south, in 1994, there was a deep earthquake that…
Earthquake Report: Humboldt County, CA!
Tonight we had a small earthquake offshore of northern California, northwest of Trinidad. Here is the USGS website for this earthquake with a magnitude of 3.2. At first glance, this earthquake appears to be close to the location of the…
Earthquake Report: Solomons!
Today we had a good sized earthquake along the S. Solomon trench, however, it was not a subduction zone earthquake, but a strike-slip earthquake in the downgoing plate. Here are the largest earthquakes plotted in the map below. S. Solomon…
Earthquake Report: Greece!
Late last night (my time) there was an earthquake in Greece with a USGS magnitude of M = 6.5. Here is the USGS web site for this earthquake. Greece is at the intersection of a complex configuration of plate boundaries.…