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Actualitées
mar., 10 mai 2016, 11:03
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)
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. ... lire toutes
sam., 20 avril 2013, 08:25
(Very) tiny earthquakes occur regularly at the volcano, but nothing suggests anything unusual going on at the volcano for the moment. ... lire toutes

Derniers séismes au monde, dernières 24 heures aujourd'hui, vendredi 16 avril 2021

Actualisé 16 Apr 2021 08:07 GMT -

Séisme plus grand: 1.4 quake 3 Km ENE of Ridgefield, Washington, USA, 12 April 2021 23:08 GMT
Séisme le plus récent: 0.7 quake 31 Km NNE of Amboy, Washington, USA, 13 April 2021 00:48 GMT
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Montrant séismes magnitude 0.1 ou plus (34 séismes):
Date and timeMag
Profondeur
DistanceLieuDétailCarte
Tue, 13 Apr 2021 (GMT) (2 séismes)
13 Apr 2021 00:48:26 GMT
0.7

13 km
Mount St. Helens (10.6 km)31 Km NNE of Amboy, Washington, USA PlusCarte
13 Apr 2021 00:39:12 GMT
0.2

6.6 km
(79 km)16 Km NNE of Ashford, Washington, USA PlusCarte
Mon, 12 Apr 2021 (GMT) (2 séismes)
12 Apr 2021 23:08:45 GMT
1.4

15 km
(58 km)3 Km ENE of Ridgefield, Washington, USA PlusCarte
12 Apr 2021 18:25:34 GMT
1.3

16 km
Mount St. Helens (47 km)7 Km NE of Woodland, Washington, USA PlusCarte
Sat, 10 Apr 2021 (GMT) (2 séismes)
10 Apr 2021 11:32:46 GMT
0.6

2.4 km
Mount St. Helens (0.1 km)38 Km NNE of Amboy, Washington, USA PlusCarte
10 Apr 2021 10:27:00 GMT
0.7

0.5 km
Mount St. Helens (0.3 km)38 Km NNE of Amboy, Washington, USA PlusCarte
Fri, 9 Apr 2021 (GMT) (2 séismes)
9 Apr 2021 22:15:13 GMT
1.4

0.3 km
Mount St. Helens (66 km)Explosion - 4 Km NW of West Longview, Washington, USA PlusCarte
9 Apr 2021 04:08:52 GMT
1.0

16 km
Mount St. Helens (40 km)13 Km WNW of Amboy, Washington, USA PlusCarte
Thu, 8 Apr 2021 (GMT) (2 séismes)
8 Apr 2021 23:42:58 GMT
0.5

18 km
Mount St. Helens (36 km)20 Km E of Castle Rock, Washington, USA PlusCarte
8 avril 2021 09:04 (GMT -7) (8 Apr 2021 16:04:03 GMT)
0.8

1.3 km
(80 km)23 Km ENE of Ashford, Washington, USA PlusCarte
Wed, 7 Apr 2021 (GMT) (3 séismes)
7 avril 2021 16:35 (GMT -7) (7 Apr 2021 23:35:04 GMT)
1.0

18 km
Mount St. Helens (31 km)13 Km SE of Mossyrock, Washington, USA PlusCarte
7 avril 2021 07:57 (GMT -7) (7 Apr 2021 14:57:02 GMT)
0.6

0.2 km
(81 km)22 Km NE of Ashford, Washington, USA PlusCarte
7 avril 2021 00:07 (GMT +0) (7 Apr 2021 00:07:22 GMT)
0.3

14 km
Mount St. Helens (20 km)23 Km SSE of Mossyrock, Washington, USA PlusCarte
Tue, 6 Apr 2021 (GMT) (6 séismes)
6 avril 2021 12:36 (GMT -7) (6 Apr 2021 19:36:14 GMT)
1.4

0.7 km
(60 km)Explosion - 1 Km NW of Columbia City, Oregon, USA PlusCarte
6 avril 2021 11:31 (GMT -7) (6 Apr 2021 18:31:36 GMT)
0.9

0.2 km
(81 km)24 Km ENE of Ashford, Washington, USA PlusCarte
6 avril 2021 17:33 (GMT +0) (6 Apr 2021 17:33:07 GMT)
1.2

1.3 km
(44 km)Explosion - 4 Km WSW of Yacolt, Washington, USA PlusCarte
6 avril 2021 05:38 (GMT +0) (6 Apr 2021 05:38:48 GMT)
0.8

16 km
(58 km)1 Km NE of Mineral, Washington, USA PlusCarte
6 avril 2021 04:13 (GMT +0) (6 Apr 2021 04:13:27 GMT)
0.5

1.2 km
(79 km)23 Km ENE of Ashford, Washington, USA PlusCarte
5 avril 2021 18:37 (GMT -7) (6 Apr 2021 01:37:12 GMT)
1.4

18 km
Mount St. Helens (46 km)10 Km ENE of Kelso, Washington, USA PlusCarte
Mon, 5 Apr 2021 (GMT) (2 séismes)
5 avril 2021 21:00 (GMT +0) (5 Apr 2021 21:00:44 GMT)
0.5

1.5 km
(80 km)23 Km ENE of Ashford, Washington, USA PlusCarte
5 avril 2021 11:43 (GMT -7) (5 Apr 2021 18:43:22 GMT)
1.3

1.1 km
(87 km)1 Km E of Kapowsin, Washington, USA PlusCarte
Sun, 4 Apr 2021 (GMT) (3 séismes)
4 avril 2021 21:37 (GMT +0) (4 Apr 2021 21:37:48 GMT)
1.0

12 km
Mount St. Helens (38 km)19 Km E of Castle Rock, Washington, USA PlusCarte
4 avril 2021 05:14 (GMT +0) (4 Apr 2021 05:14:49 GMT)
0.4

1.9 km
(80 km)23 Km ENE of Ashford, Washington, USA PlusCarte
4 avril 2021 00:40 (GMT +0) (4 Apr 2021 00:40:45 GMT)
0.2

5.4 km
(85 km)15 Km SSE of Carbonado, Washington, USA PlusCarte
Sat, 3 Apr 2021 (GMT) (5 séismes)
3 avril 2021 13:54 (GMT +0) (3 Apr 2021 13:54:50 GMT)
0.4

0.7 km
(81 km)26 Km ENE of Ashford, Washington, USA PlusCarte
3 avril 2021 08:24 (GMT +0) (3 Apr 2021 08:24:53 GMT)
0.6

1.6 km
(86 km)29 Km N of Packwood, Washington, USA PlusCarte
3 avril 2021 07:49 (GMT +0) (3 Apr 2021 07:49:04 GMT)
0.3

2.4 km
(101 km)4 Km N of Government Camp, Oregon, USA PlusCarte
3 avril 2021 05:38 (GMT +0) (3 Apr 2021 05:38:50 GMT)
0.8

8.7 km
(78 km)16 Km NNE of Ashford, Washington, USA PlusCarte
3 avril 2021 00:35 (GMT +0) (3 Apr 2021 00:35:44 GMT)
0.8

2.7 km
(82 km)25 Km ENE of Ashford, Washington, USA PlusCarte
Fri, 2 Apr 2021 (GMT) (5 séismes)
2 avril 2021 21:11 (GMT +0) (2 Apr 2021 21:11:38 GMT)
0.8

0.5 km
(79 km)23 Km ENE of Ashford, Washington, USA PlusCarte
2 avril 2021 18:38 (GMT +0) (2 Apr 2021 18:38:43 GMT)
0.4

15 km
Mount St. Helens (35 km)21 Km ESE of Castle Rock, Washington, USA PlusCarte
2 avril 2021 09:12 (GMT -7) (2 Apr 2021 16:12:34 GMT)
0.8

2.3 km
(79 km)24 Km ENE of Ashford, Washington, USA PlusCarte
2 avril 2021 14:18 (GMT +0) (2 Apr 2021 14:18:15 GMT)
0.1

1.9 km
(80 km)23 Km ENE of Ashford, Washington, USA PlusCarte
2 avril 2021 10:48 (GMT +0) (2 Apr 2021 10:48:38 GMT)
1.2

5.6 km
(61 km)1 Km NE of Mount Vista, Washington, USA PlusCarte
Estimation de l'énergie sismique combinée libérée: 7 x 107 joules (19.4 kilowatt hours) Plus d'infos

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