Magnitude 6.2 – 182km WSW of Bella Bella, Canada – April 24, 2015

April 24, 2015 by

MLMA NEMAUSGS Tectonic Summary
2015-04-24 13:56:16 (UTC)
182km (113mi) WSW of Bella Bella, Canada
51.769°N   -130.695°W
depth=10 km (6.2 mi)

Earth’s Mysterious Hum

April 21, 2015 by

All quiet on the Weston front… Well, sort of…

This is a VERY quiet day “quake-wise” in the Earth beneath Weston Observatory, but even when there are no quakes, the Earth has a constant background “hum”, the so-called “microseismic” activity.

The first picture shown here is Sunday’s Weston Observatory seismogram that we set at a typical level of magnification. In the second picture, we magnified the waves by a factor of 10 greater than in the first, so there you can watch the Earth “hum…

See: Earth’s Mysterious Hum Explained –
http://www.livescience.com/50473-earth-mysterious-hum-explained.html

NESN_WES_50 NESN_WES_500

Magnitude 5.8 – 100km NE of Hihifo, Tonga – April 7, 2015

April 7, 2015 by

USGS Tectonic Summary
Magnitude 5.8 – 100km NE of Hihifo, Tonga
2015-04-07 00:46:18 (UTC)
-15.198°S   -173.222°W
depth=10.0 km

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