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Updated: Oct 20, 2021 04:50 GMT -

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

Updated Oct 20, 2021 04:50 GMT -
During Aug 2021, Shelter Cove was shaken by 1 quake of magnitude 4.0, 2 quakes between 3.0 and 4.0, and 13 quakes between 2.0 and 3.0. There were also 11 quakes below magnitude 2.0 which people don't normally feel.
Biggest quake: 4.0 quake 21 mi southwest of Fortuna, Humboldt County, California, USA, Aug 31, 2021 1:01 am (GMT -7)
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Showing quakes magnitude 0.1 or higher (27 quakes):
Date and timeMag
Depth
Nearest volcano (distance)LocationDetailsMap
Tuesday, August 31, 2021 08:01 GMT (1 earthquake)
Aug 31, 2021 1:01 am (GMT -7) (Aug 31, 2021 08:01 GMT)
4.0

32 km
202 km (126 mi)21 mi southwest of Fortuna, Humboldt County, California, USA 5 reportsMoreMap
Monday, August 30, 2021 07:17 GMT (2 earthquakes)
Aug 30, 2021 12:17 am (GMT -7) (Aug 30, 2021 07:17 GMT)
2.4

19 km
219 km (136 mi)22km NW of Petrolia, CA MoreMap
Aug 29, 2021 7:28 pm (GMT -7) (Aug 30, 2021 02:28 GMT)
1.8

7.8 km
82 km (51 mi)14km NNE of Brooktrails, CA 1 reportMoreMap
Sunday, August 29, 2021 03:17 GMT (1 earthquake)
Aug 28, 2021 8:17 pm (GMT -7) (Aug 29, 2021 03:17 GMT)
2.3

21 km
145 km (90 mi)33km W of Hayfork, CA MoreMap
Wednesday, August 25, 2021 17:33 GMT (2 earthquakes)
Aug 25, 2021 10:33 am (GMT -7) (Aug 25, 2021 17:33 GMT)
1.7

7.2 km
108 km (67 mi)8km NNW of Laytonville, CA MoreMap
Aug 25, 2021 1:42 am (GMT -7) (Aug 25, 2021 08:42 GMT)
2.1

23 km
200 km (124 mi)2km W of Petrolia, CA MoreMap
Sunday, August 22, 2021 03:50 GMT (1 earthquake)
Aug 21, 2021 8:50 pm (GMT -7) (Aug 22, 2021 03:50 GMT)
1.6

15 km
214 km (133 mi)20km W of Petrolia, CA MoreMap
Friday, August 20, 2021 18:01 GMT (1 earthquake)
Aug 20, 2021 11:01 am (GMT -7) (Aug 20, 2021 18:01 GMT)
3.2

24 km
200 km (124 mi)21 mi southwest of Fortuna, Humboldt County, California, USA 1 reportMoreMap
Wednesday, August 18, 2021 13:04 GMT (1 earthquake)
Aug 18, 2021 6:04 am (GMT -7) (Aug 18, 2021 13:04 GMT)
2.1

23 km
147 km (91 mi)12km ESE of Redway, CA MoreMap
Sunday, August 15, 2021 08:14 GMT (1 earthquake)
Aug 15, 2021 1:14 am (GMT -7) (Aug 15, 2021 08:14 GMT)
2.0

6.8 km
218 km (135 mi)30km W of Petrolia, CA MoreMap
Friday, August 13, 2021 22:40 GMT (3 earthquakes)
Aug 13, 2021 3:40 pm (GMT -7) (Aug 13, 2021 22:40 GMT)
2.2

29 km
203 km (126 mi)8km WSW of Petrolia, CA MoreMap
Aug 13, 2021 12:40 pm (GMT -7) (Aug 13, 2021 19:40 GMT)
2.0

22 km
207 km (129 mi)8km NW of Petrolia, CA MoreMap
Aug 12, 2021 9:11 pm (GMT -7) (Aug 13, 2021 04:11 GMT)
2.4

24 km
200 km (124 mi)2km WSW of Petrolia, CA MoreMap
Thursday, August 12, 2021 08:03 GMT (2 earthquakes)
Aug 12, 2021 1:03 am (GMT -7) (Aug 12, 2021 08:03 GMT)
2.8

27 km
206 km (128 mi)North Pacific Ocean, 39 mi southwest of Eureka, Humboldt County, California, USA MoreMap
Aug 11, 2021 6:20 pm (GMT -7) (Aug 12, 2021 01:20 GMT)
1.9

7.5 km
112 km (70 mi)12km NNW of Laytonville, CA MoreMap
Wednesday, August 11, 2021 21:01 GMT (1 earthquake)
Aug 11, 2021 2:01 pm (GMT -7) (Aug 11, 2021 21:01 GMT)
1.8

29 km
201 km (125 mi)11km WSW of Petrolia, CA MoreMap
Tuesday, August 10, 2021 02:03 GMT (1 earthquake)
Aug 9, 2021 7:03 pm (GMT -7) (Aug 10, 2021 02:03 GMT)
2.8

26 km
201 km (125 mi)34 mi south of Eureka, Humboldt County, California, USA MoreMap
Monday, August 9, 2021 12:31 GMT (1 earthquake)
Aug 9, 2021 5:31 am (GMT -7) (Aug 9, 2021 12:31 GMT)
1.8

23 km
196 km (122 mi)5km E of Petrolia, CA MoreMap
Sunday, August 8, 2021 10:40 GMT (2 earthquakes)
Aug 8, 2021 3:40 am (GMT -7) (Aug 8, 2021 10:40 GMT)
3.4

24 km
200 km (124 mi)21 mi southwest of Fortuna, Humboldt County, California, USA 4 reportsMoreMap
Aug 7, 2021 11:29 pm (GMT -7) (Aug 8, 2021 06:29 GMT)
1.5

22 km
192 km (119 mi)5km S of Rio Dell, CA MoreMap
Saturday, August 7, 2021 23:43 GMT (1 earthquake)
Aug 7, 2021 4:43 pm (GMT -7) (Aug 7, 2021 23:43 GMT)
2.2

29 km
201 km (125 mi)5km WSW of Petrolia, CA MoreMap
Friday, August 6, 2021 09:56 GMT (1 earthquake)
Aug 6, 2021 2:56 am (GMT -7) (Aug 6, 2021 09:56 GMT)
2.2

28 km
198 km (123 mi)6km ENE of Petrolia, CA MoreMap
Wednesday, August 4, 2021 21:11 GMT (1 earthquake)
Aug 4, 2021 2:11 pm (GMT -7) (Aug 4, 2021 21:11 GMT)
1.6

28 km
204 km (127 mi)7km W of Petrolia, CA MoreMap
Tuesday, August 3, 2021 14:53 GMT (1 earthquake)
Aug 3, 2021 14:53 GMT
1.4

4.6 km
87 km (54 mi)14km NNW of Brooktrails, CA MoreMap
Monday, August 2, 2021 08:30 GMT (2 earthquakes)
Aug 2, 2021 08:30 GMT
1.6

2.9 km
105 km (65 mi)6km W of Laytonville, CA MoreMap
Aug 2, 2021 06:34 GMT
2.3

24 km
200 km (124 mi)2km W of Petrolia, CA MoreMap
Sunday, August 1, 2021 14:00 GMT (1 earthquake)
Aug 1, 2021 14:00 GMT
1.6

6.7 km
203 km (126 mi)10km WSW of Petrolia, CA MoreMap
Estimated combined seismic energy released: 7.9 x 1010 joules (21.9 megawatt hours, equivalent to 18.8 tons of TNT) More info
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