Yesterday there was an earthquake along the eastern extension of the Mendocino fault system. This magnitude M = 4.1 earthquake (here is the USGS website for this earthquake) is a small magnitude, but it was widely felt. I was in…
Earthquake Report: Japan!
There was an earthquake in Japan tonight (tomorrow morning there). Here is the USGS website for this M 6.2 earthquake. The earthquake was shallow and widely felt with moderate intensity, so some casualties are expected. In the map below I…
Earthquake Report: New Britain!
Last night there was a magnitude M 6.9 earthquake associated with the subduction zone that forms the New Britain Trench (where the Solomon Sea plate subducts northwards beneath the South Bismarck plate). The day before there was a M 6.4…
Earthquake Report: Gorda Plate!
Last night, while I was preparing an online exam for my students to take while I am at the Geological Society of America Annual Meeting in Denver Colorado, there were a couple earthquakes in the Gorda plate offshore of northern…
Earthquake Report: Solomon Islands
There was an earthquake along the South Solomon Trench earlier today (before I woke up). Here is the USGS website for this M 6.0 earthquake. Below is my interpretive poster for this earthquake. This map shows the slab contours (an…
Earthquake Report: Mendocino fault!
Well, I felt that one. The shaking lasted about 5-7 seconds in Manila, CA (where I live). Here is the USGS website for this M = 5.6 earthquake. This earthquake appears to have occurred along the Mendocino fault, a right-lateral…
Earthquake Report: New Zealand!
This was a very busy week for me, so I missed reporting on this series of earthquakes offshore the North Island of New Zealand. I did put together an interpretive Earthquake Report poster for these earthquakes for my general education…
Earthquake Report: New Britain!
We just had an earthquake in the New Britain region of the equatorial Pacific. Here is the USGS website for this M 6.7 (now M 6.8) earthquake. This is a very interesting earthquake for this region because it is very…
Earthquake Report: Australia!
Yesterday there was an earthquake in northeastern Australia. Here is the USGS website for this M 5.7 earthquake. This earthquake occurred in a region that also experienced a similar magnitude earthquake in 2011. Here is the USGS website for that…
Earthquake Report: New Hebrides / Tonga Update #2
I put together another map that shows these two earthquakes. The M 7.2 earthquake appears to be along a west-northwest striking right lateral strike-slip fault and the M 6.1 appears to be either a steeply or shallowly dipping normal (extension)…