5/15/2015 — West Coast Volcano shows earthquake activity – Mount Hood along Oregon Coast

Mount Hood Volcano in Northwest Oregon just experienced a moderate magnitude 3.0 earthquake.

Any time we see an earthquake this close to a large dormant volcano on the West coast, we need to pay attention.

mount hood volcano earthquake 3.3 may 15 2015


We need to be extra vigilant in the light of the other news from 2 weeks ago , that a new undersea VOLCANIC ERUPTION is currently taking place off the West coast of Oregon.


The new eruption is taking place due West of this new earthquake near Mount Hood volcano.

On May 1, 2015 it was announced that a new layer of lava was laid out across the sea floor off the coast of Oregon.   The lava came from a  fresh eruption along the Juan De Fuca  / Gorda Escarpment / Axial Seamount.


Above: Graphic from Oregon State.edu showing the location of the new eruption off the coast of Oregon (May 2015).


Video covering the new volcanic eruption 2 weeks ago (May 1 2015) here:


With an ACTIVE volcanic eruption just a small distance away from Mount Hood, and with dormant volcanoes showing earthquake activity further down the West coast in California, we need to watch for further noteworthy earthquake development in this region of the Pacific Northwest.

Keep watch in the areas warned 4 days ago (warned in the Earthquake forecast).  The area near Vancouver Island British Columbia is expected to show higher earthquake activity in the next few days.

Watch the earthquake forecast for the Pacific Northwest United States here (issued May 11 2015):


Information on this 3.3 magnitude (downgraded to a 3.0M) from the USGS here:


Magnitude / uncertainty 3.0 ml± 0.2
Location / uncertainty 45.206°N 121.269°W± 0.5 km
Depth / uncertainty 14.1 km± 0.6
Origin Time 2015-05-15 22:42:43.660 UTC
Number of Stations 21
Number of Phases 27
Minimum Distance 5.54 km (0.05°)
Travel Time Residual 0.13 sec
Azimuthal Gap 48°
FE Region Oregon (28)


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