asia - Jay Patton online

Plate Tectonics: 200 Ma

Gibbons and others (2015) have put together a suite of geologic data (e.g. ages of geologic units, fossils), plate motion data (geometry of plates and ocean ridge spreading rates), and plate tectonic data (initiation and cessation of subduction or collision,…

Earthquake in Papua New Guinea!

In the last ~24 hours, we have had a few earthquakes in northeastern Papua New Guinea, all in the M 5 range. Here are the USGS web sites for these earthquakes: 2015.09.11 M 5.5 2015.09.11 M 5.3 2015.09.12 M 5.0…

Earthquake near the Santa Cruz Islands (western Pacific)!

Yesterday we had a large magnitude earthquake along a plate boundary that connects the South Solomon trench with the New Hebrides trench. This region had a swarm of earthquakes in May. Here is the USGS website for the M 6.6…

Solomon Islands Earthquake!

Today we had another earthquake in this tectonically active region of the world. Initially posted as a magnitude 7.0, the USGS considers this a M = 6.6 earthquake. Here is a map showing the epicenter as an orange circle. I…

New Guinea Earthquake Update #2

There have been a few more data products produced for this earthquake (that has not had any aftershocks). IRIS has produced some educational material, called “teaching moments” (or, could be called, learning moments, heheh). However, their data are often poorly…

New Guinea Earthquake Update #1

Here is an update on the M = 7.0 New Guinea earthquake. Here is my first post about this earthquake. As I mentioned, there has been a flurry of seismic activity along the New Britain and Solomon trenches to the…

Andaman Sea Earthquake!

Today we had a small earthquake in the Andaman Sea, west of Thailand and east of the Andaman Isles (India). The Andaman Sea is a region of backarc spreading and connects the Sumatra fault (a (strike-slip) sliver fault that accommodates…

Movies: Seismic Record of a Deep Izu-Bonin Earthquake

Scientists at the National Research Institute for Earth Science and Disaster Prevention have collected and processed seismic data from the High Sensitivity Seismograph Network Japan (Hi-net). They created movies of these data, in map view. Here is the page where…

Historic Seismicity Animations: Izu-Bonin, Mariana: 1940 – 2015

Following up on the seismicity in the western Pacific, I put together a couple animations. My post about the deep mainshock (magnitude M = 7.8 ) is here. My second post has some aftershocks plotted (and some foreshocks), as well…

Triggered Earthquakes: Izu-Bonin

Well, we had a large magnitude earthquake (M = 6.2) triggered by the M 7.8 deep earthquake along the Izu-Bonin Trench. Here is my post from yesterday. Note the triggered earthquake is in a region where there were earthquakes about…

Category: asia (page 5)