Latest quakes in or near Semidi Islands, Alaska, USA - list, stats and map
Latest See all | Mag. 2.4 earthquake 83 km ENE of Chignik - Alaska - |
Strongest past 30 days | Mag. 4.6 156 km SE of Chignik - Alaska - Apr 18, 2024 - |
- 0 quakes above magnitude 4
- 1 quake between magnitude 2 and 3
Date and Time | Mag Depth | Nearest Volcano | Location | Details | Map |
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Apr 23, 06:28 pm (Anchorage) | 2.4 114 km | 83 km ENE of Chignik, Alaska | Info | ||
Monday, April 22, 2024 GMT (1 quake) | |||||
Apr 22, 02:51 am (Anchorage) | 2.2 84 km | 96 km E of Chignik, Alaska | Info | ||
Sunday, April 21, 2024 GMT (2 quakes) | |||||
Apr 21, 07:45 am (GMT -8) | 2.3 26 km | 109 km SE of Ugashik, Alaska | Info | ||
Apr 21, 01:50 am (Anchorage) | 2.5 22 km | 41 km E of Chignik, Alaska | Info | ||
Friday, April 19, 2024 GMT (1 quake) | |||||
Apr 18, 10:27 pm (GMT -9) | 4.6 16 km | 156 km SE of Chignik, Alaska | Info | ||
Tuesday, April 9, 2024 GMT (1 quake) | |||||
Apr 8, 08:54 pm (Anchorage) | 2.6 84 km | 76 km NE of Chignik, Alaska | Info | ||
Sunday, April 7, 2024 GMT (1 quake) | |||||
Apr 7, 07:26 am (GMT -8) | 2.2 27 km | 53 km ESE of Chignik, Alaska | Info | ||
Saturday, April 6, 2024 GMT (1 quake) | |||||
Apr 6, 12:02 am (GMT -8) | 2.6 40 km | 168 km ESE of Chignik, Alaska | Info | ||
Friday, April 5, 2024 GMT (2 quakes) | |||||
Apr 5, 08:22 am (Anchorage) | 2.2 86 km | 76 km SSE of Ugashik, Alaska | Info | ||
Apr 4, 06:47 pm (GMT -8) | 2.5 76 km | 118 km SSE of Ugashik, Alaska | Info | ||
Monday, April 1, 2024 GMT (1 quake) | |||||
Apr 1, 10:29 am (GMT -9) | 3.8 10 km | 150 km SE of Chignik, Alaska | Info |
Semidi Islands Quake-O-Meter
Latest seismic signals
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Earthquake statistics
Average number of earthquakes
- Mag. 6 or higher: 0.06 quakes per year (or 1 quake every 15.6 years)
- Mag. 5 or higher: 0.16 quakes per year (or 1 quake every 6.4 years)
- Mag. 4 or higher: 1.01 quakes per year
- Mag. 3 or higher: 13.2 quakes per year
- Mag. 2 or higher: 46 quakes per year (or 3.9 quakes per month)
- Mag. 1 or higher: 48 quakes per year (or 4 quakes per month)
Number of earthquakes over time
Semidi Islands Earthquake FAQ
+How frequent are earthquakes in or near Semidi Islands, Alaska, USA?
Semidi Islands has a high level of seismic activity. Based on data from the past 54 years and our earthquake archive back to 1900, there are about 50 quakes on average per year in or near Semidi Islands, Alaska, USA. Semidi Islands has had at least 8 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 15 to 20 years.
+How many earthquakes occur every year in or near Semidi Islands, Alaska, USA?
On average, Semidi Islands has about 46 quakes of magnitude 2 or higher per year.
+When was the latest earthquake in Semidi Islands?
The last earthquake in Semidi Islands occurred 2 days ago and had a magnitude of 2.4:
A light magnitude 2.4 earthquake occurred in the Gulf of Alaska near Sutwik Island island, USA, in the late afternoon of Tuesday, Apr 23, 2024 at 6.28 pm local time (America/Anchorage GMT -8). The quake had a moderate depth of 114 km (71 mi) and was not felt (or at least not reported so).
+How many quakes were there in Semidi Islands in the past 30 days?
In the past 30 days, Semidi Islands has been shaken by 0 quakes of magnitude 4.0 or above and 1 quake of magnitude 2.2.
+What was the strongest quake in Semidi Islands in the past 30 days?
The strongest earthquake in Semidi Islands in the past 30 days had a magnitude of 4.6 and occurred 7 days ago:
A strong magnitude 4.6 earthquake occurred in the Gulf of Alaska near the coast of United States late in the evening of Thursday, Apr 18, 2024 at 10.27 pm local time (GMT -9). The quake had a very shallow depth of 15.8 km (10 mi) and was not felt (or at least not reported so).
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You can use the standalone version of our interactive earthquake map or embed it on your website:Largest Quakes in or near Semidi Islands, Alaska, USA
Date and Time | Mag Depth | ###DIST_LABEL### | Location | Details | Map |
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