This morning we had a series of earthquakes along the Aleutian trench near Atka and the Amlia fracture zone. This is a very active part of this plate boundary and I summarize some of this below. The USGS has a…
Earthquake Report: Sumatra!
We just had a M = 7.8 earthquake southwest of the Island of Sumatra, a volcanic arc formed from the subduction of the India-Australia plate beneath the Sunda plate (part of Eurasia). Here is the USGS website for this earthquake.…
Earthquake Report: Taiwan Update #1
People have been busy documenting the damage from the M 6.4 earthquake in Taiwan. Here is my initial Earthquake Report for this earthquake. Here are a couple news sources on the damage. There appears to be a few large buildings…
Earthquake Report: Taiwan!
We just had an earthquake in southern Taiwan. Here is the USGS website for this M 6.4 earthquake. In April 2015, there was a series of earthquakes in the northeast of Taiwan. Here is my earthquake report for those earthquakes.…
Earthquake Report: Kamchatka!
We just had an earthquake located along the Kamchatka Peninsula. Here is the USGS website for this M 7.2 earthquake. This earthquake was fairly deep and approximately east of a large and very deep earthquake from 2013. Here is my…
Cascadia subduction zone: 316 years ago tonight!
In commemoration of the last known Cascadia subduction zone earthquake, I present a summary background material here. Since last years commemoration, there have been a few additions. I made some updates on 2018.01.26. Most notably was a pair of articles…
Earthquake Report: Alaska!
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.…
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: 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.…