There was just a pair of earthquakes near the Gorda rise. There was first an earthquake of magnitude M = 5.0, followed by a M = 4.9. The 5.0 appears to be within the GP, but the 4.9 seems to…
Earthquake Report: Mediterranean!
We just had a M 6.1 earthquake and a few aftershocks (M 4-5) in the western Mediterranean, Here is the USGS website for this earthquake. Here is a map showing the 5 largest earthquakes as circles. There is a legend…
Earthquake Report: Rivera fracture zone, Mexico!
We just had an earthquake offshore of Colima, Mexico. This earthquake appears associated with the Rivera fracture zone (RFZ), a transform plate boundary separating the Rivera plate to the north and the Pacific plate to the south. The RFZ connects…
Hoax Alert: Cascadia Buoy!
Today there was a bantering about a buoy several hundred miles offshore of Oregon. A website had posted a hoax about how the buoy data suggested that there was movement along the Cascadia subduction zone. These hoaxes happen rather frequently.…
Earthquake Report: Cuba!
We just had three earthquakes on the southern boundary of Cuba. Here are the USGS websites for these earthquakes: 2016.01.17 M 4.6 2016.01.17 M 5.1 2016.01.17 M 5.1 These do not have USGS moment tensors, but I suspect that they…
Earthquake Report: Hokkaido!
Today we had an earthquake offshore of Hokkaido. This earthquake occurred near the 2003 Tokachi_oki earthquake, a M 8.3 earthquake that is responsible for one of the only direct observations of a seismogenic turbidity current. Here is my interpretive map.…
Earthquake Report: Cape Mendocino!
We just had a pair of earthquakes near the town of Petrolia (first oil well in CA drilled here, ergo the name). The first one I did not feel, but I did feel the quick jolt of the second one.…
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…
Earthquake Report: 2015 Summary M GT 7
Here I summarize the global seismicity for 2015. I limit this summary to earthquakes with magnitude greater than or equal to M 7.0. I reported on all but one of these earthquakes. Here are all the annual summaries: 2015 Earthquake…
Earthquake Report: San Bernardino (Devore)!
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.…