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- On And the ScienceSeeker Award for best physics, astronomy, or earth science post goes to…:
- Silver Fox: Very nice! Read
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- Eric Bilderback: As noted in other comments, the three axis plot is a graphical representation of some of the... Read
- Damian Grant: This is exactly the representation of risk used in the risk literature, where Vulnerability is... Read
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Category Archives: focal mechanisms
Echoes of Wenchuan: magnitude 6.6 earthquake shakes Sichuan province in west China.
On Saturday morning local time (Friday evening for us in the USA), a magnitude 6.6 earthquake shook up Sichuan province in western China, about 35 km north of the closest city, Ya’an, and 115km west of the provincial capital Chengdu. … Continue reading
Categories: earthquakes, focal mechanisms, tectonics
A week of big earthquakes in Iran
Squashed and squeezed between the Eurasian continent to the north and the northward-moving Arabian plate to the south, it is no surprise that Iran is a seismically active country, and in the past week it has been living up to … Continue reading
Categories: earthquakes, focal mechanisms, tectonics
Friday Focal Mechanisms: before and after the M8 Santa Cruz Islands quake
On Tuesday night American time (Wednesday lunchtime local time), a magnitude 8 earthquake occurred near the Santa Cruz Islands, a set of small islands east of the Solomon Islands. In this region, the Australian plate is subducting to the north-east … Continue reading
Friday Focal Mechanism: the Himalayas’ long tectonic shadow
It wasn’t the biggest seismic event of the week, but this shallow (15 km depth) magnitude 6.0 that shook the remote southeast corner of Kazakstan on Monday still caught my attention. Located within the Tian Shan mountains, this earthquake is … Continue reading
Friday Focal Mechanisms: South Australian shaking keeps Chris guessing
A Friday focal mechanism…without a focal mechanism! Can the seismic past be the key to the present? Continue reading

