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Updated: Nov 29, 2021 10:00 GMT -

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Past earthquakes near Shelter Cove, Humboldt County, California, USA: September 2021

Updated Nov 29, 2021 10:00 GMT -
During Sep 2021, Shelter Cove was shaken by 1 quake of magnitude 4.5, 2 quakes between 3.0 and 4.0, and 18 quakes between 2.0 and 3.0. There were also 9 quakes below magnitude 2.0 which people don't normally feel.
Biggest quake: 4.5 quake North Pacific Ocean, 38 mi south of Eureka, Humboldt County, California, USA, Sep 9, 2021 2:57 pm (GMT -7)
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Showing quakes magnitude 0.1 or higher (30 quakes):
Date and timeMag
Depth
Nearest volcano (distance)LocationDetailsMap
Thursday, September 30, 2021 06:37 GMT (1 earthquake)
Sep 29, 2021 11:37 pm (GMT -7) (Sep 30, 2021 06:37 GMT)
2.8

30 km
North Pacific Ocean, 36 mi south of Eureka, Humboldt County, California, USA 2 reportsMoreMap
Monday, September 27, 2021 22:27 GMT (1 earthquake)
Sep 27, 2021 3:27 pm (GMT -7) (Sep 27, 2021 22:27 GMT)
2.8

10.9 km
37 mi south of Eureka, Humboldt County, California, USA MoreMap
Sunday, September 26, 2021 19:54 GMT (3 earthquakes)
Sep 26, 2021 12:54 pm (GMT -7) (Sep 26, 2021 19:54 GMT)
2.4

19 km
11km SW of Petrolia, CA 1 reportMoreMap
Sep 26, 2021 1:51 am (GMT -7) (Sep 26, 2021 08:51 GMT)
3.6

12 km
24 mi south of Fortuna, Humboldt County, California, USA 2 reportsMoreMap
Sep 25, 2021 7:06 pm (GMT -7) (Sep 26, 2021 02:06 GMT)
1.6

21 km
21km WSW of Petrolia, CA MoreMap
Friday, September 24, 2021 17:31 GMT (1 earthquake)
Sep 24, 2021 10:31 am (GMT -7) (Sep 24, 2021 17:31 GMT)
2.4

18 km
5km SW of Petrolia, CA MoreMap
Thursday, September 23, 2021 20:24 GMT (2 earthquakes)
Sep 23, 2021 1:24 pm (GMT -7) (Sep 23, 2021 20:24 GMT)
2.1

3.5 km
6km SSW of Laytonville, CA MoreMap
Sep 23, 2021 12:46 am (GMT -7) (Sep 23, 2021 07:46 GMT)
2.6

20 km
17km WSW of Petrolia, CA MoreMap
Wednesday, September 22, 2021 00:08 GMT (1 earthquake)
Sep 21, 2021 5:08 pm (GMT -7) (Sep 22, 2021 00:08 GMT)
2.5

28 km
10km W of Petrolia, CA MoreMap
Saturday, September 18, 2021 04:39 GMT (1 earthquake)
Sep 17, 2021 9:39 pm (GMT -7) (Sep 18, 2021 04:39 GMT)
3.0

19 km
24 mi south of Fortuna, Humboldt County, California, USA 1 reportMoreMap
Thursday, September 16, 2021 08:37 GMT (1 earthquake)
Sep 16, 2021 1:37 am (GMT -7) (Sep 16, 2021 08:37 GMT)
2.6

30 km
8km WSW of Petrolia, CA MoreMap
Monday, September 13, 2021 02:20 GMT (1 earthquake)
Sep 12, 2021 7:20 pm (GMT -7) (Sep 13, 2021 02:20 GMT)
2.4

18 km
18km WSW of Petrolia, CA MoreMap
Sunday, September 12, 2021 13:54 GMT (1 earthquake)
Sep 12, 2021 6:54 am (GMT -7) (Sep 12, 2021 13:54 GMT)
2.5

31 km
8km SW of Petrolia, CA MoreMap
Saturday, September 11, 2021 20:23 GMT (4 earthquakes)
Sep 11, 2021 1:23 pm (GMT -7) (Sep 11, 2021 20:23 GMT)
1.5

9.5 km
8km NNW of Laytonville, CA MoreMap
Sep 11, 2021 7:45 am (GMT -7) (Sep 11, 2021 14:45 GMT)
2.3

7.6 km
8km NNW of Laytonville, CA MoreMap
Sep 11, 2021 7:25 am (GMT -7) (Sep 11, 2021 14:25 GMT)
2.5

4.5 km
22km N of Laytonville, CA MoreMap
Sep 10, 2021 8:00 pm (GMT -7) (Sep 11, 2021 03:00 GMT)
2.4

21 km
23km WNW of Petrolia, CA 1 reportMoreMap
Friday, September 10, 2021 17:06 GMT (2 earthquakes)
Sep 10, 2021 10:06 am (GMT -7) (Sep 10, 2021 17:06 GMT)
2.2

25 km
5km WSW of Petrolia, CA MoreMap
Sep 9, 2021 5:03 pm (GMT -7) (Sep 10, 2021 00:03 GMT)
2.2

31 km
8km WSW of Petrolia, CA MoreMap
Thursday, September 9, 2021 21:57 GMT (1 earthquake)
Sep 9, 2021 2:57 pm (GMT -7) (Sep 9, 2021 21:57 GMT)
4.5

33 km
North Pacific Ocean, 38 mi south of Eureka, Humboldt County, California, USA 3 reportsMoreMap
Wednesday, September 8, 2021 15:00 GMT (1 earthquake)
Sep 8, 2021 8:00 am (GMT -7) (Sep 8, 2021 15:00 GMT)
1.7

5.4 km
6km ENE of Brooktrails, CA MoreMap
Tuesday, September 7, 2021 17:57 GMT (3 earthquakes)
Sep 7, 2021 10:57 am (GMT -7) (Sep 7, 2021 17:57 GMT)
1.9

6.7 km
8km NNW of Laytonville, CA MoreMap
Sep 6, 2021 11:28 pm (GMT -7) (Sep 7, 2021 06:28 GMT)
1.1

2.6 km
4km NE of Willits, CA MoreMap
Sep 6, 2021 7:41 pm (GMT -7) (Sep 7, 2021 02:41 GMT)
1.0

8.6 km
13km NNE of Brooktrails, CA MoreMap
Monday, September 6, 2021 16:02 GMT (1 earthquake)
Sep 6, 2021 9:02 am (GMT -7) (Sep 6, 2021 16:02 GMT)
1.8

5.2 km
0km SW of Laytonville, CA MoreMap
Saturday, September 4, 2021 15:10 GMT (2 earthquakes)
Sep 4, 2021 8:10 am (GMT -7) (Sep 4, 2021 15:10 GMT)
1.6

24 km
5km SW of Petrolia, CA MoreMap
Sep 3, 2021 5:53 pm (GMT -7) (Sep 4, 2021 00:53 GMT)
1.5

8.2 km
13km N of Brooktrails, CA MoreMap
Friday, September 3, 2021 22:18 GMT (2 earthquakes)
Sep 3, 2021 3:18 pm (GMT -7) (Sep 3, 2021 22:18 GMT)
2.3

28 km
7km W of Petrolia, CA MoreMap
Sep 3, 2021 2:25 am (GMT -8) (Sep 3, 2021 10:25 GMT)
2.6

11 km
50km W of Petrolia, CA MoreMap
Thursday, September 2, 2021 23:59 GMT (1 earthquake)
Sep 2, 2021 4:59 pm (GMT -7) (Sep 2, 2021 23:59 GMT)
2.4

17 km
8km W of Petrolia, CA MoreMap
Estimated combined seismic energy released: 3.8 x 1011 joules (105 megawatt hours, equivalent to 90.7 tons of TNT) More info
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