Early this morning, we had a M 7.1 earthquake in the Cook Inlet of Alaska. Here is the USGS web page for this earthquake. Due to the magnitude and depth for this earthquake, there is no tsunami risk for CA/OR/WA.…
Cascadia Update: new tsunami simulation!
The NOAA/NWS/Pacific Tsunami Warning Center has updated their animation of the simulation of the 1700 “Orphan Tsunami.” Source: Nathan C. Becker, Ph.D. nathan.becker at noaa.gov I provide some other background information about Cascadia here: Cascadia’s 315th Anniversary 2015.01.26 Earthquake Information…
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.…
Flood Report: Eel and Van Duzen Rivers!
Yesterday and today were flood events on the Van Duzen and Eel Rivers. I will post more later as I am preparing for the beginning of the Spring Term which begins tomorrow. First I post the USGS hydrographs from NOAA…
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…