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Random pictures
Earthquakes under Mount St. Helens volcano during 1988-2016; magmatic recharge swarms are marked, along with the most recent earthquake swarm. (image: USGS / Cascade Volcano Observatory via Eruptions Blog)
Tuesday, May 10, 2016
Since the beginning of 2016, a swarm of small earthquakes has been occurring at under the volcano, suggesting that another phase of magma recharge is currently taking place. ... [more]
Saturday, Apr 20, 2013
(Very) tiny earthquakes occur regularly at the volcano, but nothing suggests anything unusual going on at the volcano for the moment. [more]
 

Mount St. Helens volcano

stratovolcano 2549 m / 8,363 ft, Washington, USA (mainland exept Alaska), 46.2°N / -122.18°W
Nearby recent earthquakes (within 30km radius):

Earthquake list: past 7 days (only M>=-0.8) (5 quakes)

Jump to quake statistics
 | archive: show
Earthquake depth plotUpdated: Sat, 22 Feb 07:36 UTC (GMT)
TimeMag. / DepthDistanceLocationMapSource
Wed, 19 Feb 2020
Wed, 19 Feb 19:14 UTCM 0.5 / 2.1 km - [info]Mount St. Helens (1 km) 37km NNE of Amboy, Washington (USA)
[Map]
USGS
Wed, 19 Feb 02:28 UTCM 0.5 / 8.5 km - [info]Mount St. Helens (12 km) 37km SSE of Morton, Washington (USA)
[Map]
USGS
Mon, 17 Feb 2020
Mon, 17 Feb 22:51 UTCM 0.9 / 10.3 km - [info]Mount St. Helens (11 km) 30km NNE of Amboy, Washington (USA)
[Map]
USGS
Mon, 17 Feb 16:01 UTCM 0.3 / 1.7 km - [info]Mount St. Helens (3 km) 36km NNE of Amboy, Washington (USA)
[Map]
USGS
Sun, 16 Feb 2020
Sun, 16 Feb 02:12 UTCM 0.3 / 2.5 km - [info]Mount St. Helens (2 km) 37km NNE of Amboy, Washington (USA)
[Map]
USGS
Estimated combined seismic energy released: 2.5*10^6 J (0.688 KWh) [learn more]

Earthquake statistics

Number of earthquakes vs time:

Past 24 hrs:
Number of quakes and energy past 24 hours
Past 30 days:
Number of quakes and energy past 30 days
Past 90 days:
Number of quakes vs time
Magnitude distribution and energy released:
Past 24 hrs:
Number of quakes and energy vs magnitude past 24 hrsMagnitudes of quakes and energy vs time past 24 hrs
Past 7 days:
Number of quakes and energy vs magnitude past 7 daysMagnitudes of quakes and energy vs time past 7 days
Past 30 days:
Number of quakes and energy vs magnitude past 30 daysMagnitudes of quakes and energy vs time past 30 days
 

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