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Quake-O-Meter

Has seismic activity increased or decreased? Find out below! Check seismic activity worldwide, near you or in your favorite areas.

Quakes and stats within 500 km (311 mi) of 39.1°N/121.6°W past 3 days

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Color of quakes reflects depth (red=shallow to blue=deep).
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Adjust circle radius (50-2000 km):
The total number of quakes above magnitude 2 that occurred during the 3 days in the marked area was 21, 7% more than usually. This is compared to the average number (Ø) of 19.7 quakes obtained from the 100 preceding 3 days intervals with a standard mean deviation (σ) of 13.5 (which is a measure of the typical amount of variation, or spread, of quake numbers during such a time interval).
Interpretation: There is no significant variation in the number of quakes that occurred during the past 3 days.
MagTotal #ØσObs. deviation
6+000.1-0-100% (-0.1σ)
5+000n/a
4+00.30.8-0.3-100% (-0.3σ)
3+21.82.2+0.2+9% (+0.1σ)
2+1917.611.5+1.4+8% (+0.1σ)
All2119.713.5+1.3+7% (+0.1σ)
Explanation:
BLACK = Number of quakes within normal statistical range
RED = Significantly lower than normal number of quakes
GREEN = Significantly higher than normal number of quakes

Latest confirmed earthquakes in the marked area past 3 days

Filter by magnitude:
all
2.0+
3.0+
Showing recent quakes magnitude 2 or higher (21).
Date and time Mag
Depth		 Location Details
23 May 2022 03:38:00 GMT
(2 hours and 30 minutes ago
2.3

3.4 km		 9km SW of Tres Pinos, CA [Show on map]More
22 May 2022 23:40:28 GMT
(6 hours ago
2.6

3.5 km		 4km W of Walker, CA
I FELT IT [Show on map]		More
22 May 2022 14:37:42 GMT
(16 hours ago
2.3

3.5 km		 8km E of Alum Rock, CA [Show on map]More
22 May 2022 13:19:53 GMT
(17 hours ago
2.9

2.2 km		 2km SW of San Juan Bautista, CA
I FELT IT - 6 reports [Show on map]		More
22 May 2022 06:53:26 GMT
(23 hours ago
2.0

1.1 km		 2km ESE of The Geysers, CA [Show on map]More
22 May 2022 06:28:17 GMT
(24 hours ago
2.1

5.4 km		 4km S of San Juan Bautista, CA [Show on map]More
22 May 2022 05:12:29 GMT
(1 day 1 hours ago
2.5

1.7 km		 5km NW of The Geysers, CA [Show on map]More
22 May 2022 01:30:30 GMT
(1 day 5 hours ago
3.4

5.3 km		 14km WSW of Toms Place, CA
I FELT IT - 4 reports [Show on map]		More
21 May 2022 12:50:24 GMT
(1 day 17 hours ago
2.0

7.2 km		 24km NE of Alum Rock, CA [Show on map]More
21 May 2022 08:11:12 GMT
(1 day 22 hours ago
2.6

43 km		 18km ESE of Hayfork, CA [Show on map]More
21 May 2022 02:21:51 GMT
(2 days ago
2.4

12 km		 2km WNW of Round Valley, CA [Show on map]More
21 May 2022 02:21:51 GMT
(2 days ago
2.4

12 km		 2km WNW of Round Valley, CA [Show on map]More
21 May 2022 02:21:51 GMT
(2 days ago
2.4

12 km		 2km WNW of Round Valley, CA [Show on map]More
21 May 2022 02:21:51 GMT
(2 days ago
2.4

12 km		 2km WNW of Round Valley, CA [Show on map]More
20 May 2022 23:07:42 GMT
(2 days ago
2.3

3 km		 4km NNW of Pinnacles, CA [Show on map]More
20 May 2022 22:11:27 GMT
(2 days ago
2.6

10.1 km		 52km W of Petrolia, CA [Show on map]More
20 May 2022 16:20:35 GMT
(3 days ago
3.3

18 km		 10km SSW of Ferndale, CA
I FELT IT [Show on map]		More
20 May 2022 15:50:35 GMT
(3 days ago
2.2

18 km		 10km SSW of Ferndale, CA [Show on map]More
20 May 2022 11:38:16 GMT
(3 days ago
2.0

3.7 km		 9km NE of Coso Junction, CA [Show on map]More
20 May 2022 08:16:49 GMT
(3 days ago
2.6

9.4 km		 40km S of Qualeys Camp, NV
I FELT IT [Show on map]		More
20 May 2022 06:16:08 GMT
(3 days ago
2.8

6.2 km		 9km WSW of Petrolia, CA
I FELT IT - 2 reports [Show on map]		More
Estimated combined seismic energy released: 2 x 1010 joules (5.63 megawatt hours, equivalent to 4.85 tons of TNT) More info
Show more

Current seismic activity level

Current Seismic Activity Level
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