Major magnitude 6.6 earthquake - 15 mi west of Brawley, Imperial County, California, USA, on Wednesday, October 21, 1942 at 16:22 (GMT)

Major magnitude 6.6 earthquake - 15 mi west of Brawley, Imperial County, California, USA, on Wednesday, October 21, 1942 at 16:22 (GMT)

Major magnitude 6.6 earthquake at 6 km depth

Date & time: Oct 21, 1942 16:22:12 UTC
Magnitude: 6.6
Depth: 6.0 km
Epicenter latitude / longitude: 32.97533°N / 115.78533°W (Imperial, California, United States)
Antipode: 32.975°S / 64.215°E
Nearest volcano: Salton Buttes (29 km / 18 mi)
Nearby towns and cities:
17 km (10 mi) WSW of Westmorland (pop: 2,270) --> See nearby quakes!
24 km (15 mi) W of Brawley (Imperial County) (pop: 25,900) --> See nearby quakes!
25 km (15 mi) NW of Imperial (pop: 17,100) --> See nearby quakes!
29 km (18 mi) NW of El Sentro (pop: 44,000) --> See nearby quakes!
42 km (26 mi) NW of Calexico (pop: 40,100) --> See nearby quakes!
86 km (54 mi) SSE of Coachella (pop: 44,600) --> See nearby quakes!
92 km (57 mi) SSE of Indian Wells (pop: 87,500) --> See nearby quakes!
100 km (62 mi) SE of Palm Desert (pop: 51,900) --> See nearby quakes!
132 km (82 mi) ENE of San Diego (pop: 1,394,900) --> See nearby quakes!
808 km (502 mi) SE of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 atomic bombs!) More info
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
6.66 km17km WSW of Westmorland, CA (USA)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
Volcanoes & Earthquakes - new app for Android

Aftershocks

[More info]

Recorded aftershocks, latest first (106 quakes)

Date and timeMag
Depth
LocationDetails
Apr 14, 1943 08:47
79 years ago
3.0

6 km
San Diego County, 36 mi NW of El Sentro, Imperial County, California, USAMore
Apr 10, 1943 18:31
79 years ago
3.5

6 km
14 mi N of Ocotillo, Imperial County, California, USAMore
Apr 8, 1943 10:49
79 years ago
3.2

6 km
13 mi E of Indian Wells, Riverside County, California, USAMore
Apr 7, 1943 03:46
79 years ago
3.6

6 km
San Diego County, 17 mi NW of Ocotillo, Imperial County, California, USAMore
Apr 6, 1943 09:03
79 years ago
2.9

6 km
13 mi E of Hemet, Riverside County, California, USAMore
Mar 30, 1943 10:35
79 years ago
2.6

6 km
11km S of Borrego Springs, CA (USA)More
Mar 29, 1943 08:27
79 years ago
2.6

6 km
21km NNW of Ocotillo, CA (USA)More
Mar 29, 1943 06:41
79 years ago
2.9

6 km
20 mi W of Brawley, Imperial County, California, USAMore
Mar 26, 1943 06:29
79 years ago
3.7

6 km
18 mi S of Salton City, Imperial County, California, USAMore
Mar 18, 1943 23:06
79 years ago
3.2

4.6 km
7.1 mi SE of Anza, Riverside County, California, USAMore
Mar 17, 1943 00:56
79 years ago
3.5

6 km
1.7 mi S of Westmorland, Imperial County, California, USAMore
Mar 17, 1943 00:52
79 years ago
3.3

6 km
2.1 mi E of Westmorland, Imperial County, California, USAMore
Mar 17, 1943 00:40
79 years ago
4.6

6 km
1.2 km SE of Ejido Otilio Montaño, MexicoMore
Mar 15, 1943 14:09
79 years ago
3.6

6 km
San Diego County, 14 mi NW of Ocotillo, Imperial County, California, USAMore
Mar 9, 1943 00:19
79 years ago
3.1

6 km
8.1 mi S of Borrego Springs, San Diego County, California, USAMore
Mar 7, 1943 20:56
79 years ago
3.7

6 km
6.1 mi N of Ocotillo, Imperial County, California, USAMore
Mar 7, 1943 10:06
79 years ago
2.7

6 km
10 mi S of Borrego Springs, San Diego County, California, USAMore
Mar 3, 1943 13:05
79 years ago
3.1

6 km
10.7 mi SE of Twentynine Palms, San Bernardino County, California, USAMore
Mar 3, 1943 10:50
79 years ago
2.7

6 km
3.4 mi NW of Indian Wells, Riverside County, California, USAMore
Mar 3, 1943 07:29
79 years ago
3.4

6 km
4.4 mi N of Indian Wells, Riverside County, California, USAMore
Feb 28, 1943 06:35
79 years ago
3.4

6 km
12 mi N of Ocotillo, Imperial County, California, USAMore
Feb 25, 1943 06:19
79 years ago
3.5

6 km
San Diego County, 14 mi NW of Ocotillo, Imperial County, California, USAMore
Feb 24, 1943 01:58
79 years ago
3.6

6 km
San Diego County, 12 mi NW of Ocotillo, Imperial County, California, USAMore
Feb 19, 1943 08:48
79 years ago
2.9

6 km
38 mi E of El Cajon, San Diego County, California, USAMore
Feb 19, 1943 01:06
79 years ago
3.1

6 km
26 mi W of El Sentro, Imperial County, California, USAMore
Feb 17, 1943 23:44
79 years ago
3.2

6 km
12 mi E of Salton City, Imperial County, California, USAMore
Feb 17, 1943 10:21
79 years ago
3.1

1.8 km
6.4 mi NW of Julian, San Diego County, California, USAMore
Feb 16, 1943 21:45
79 years ago
2.7

6 km
9km S of Borrego Springs, CA (USA)More
Feb 16, 1943 21:44
79 years ago
2.6

6 km
11km SE of Borrego Springs, CA (USA)More
Feb 10, 1943 23:04
79 years ago
2.9

6 km
San Diego County, 35 mi W of El Sentro, Imperial County, California, USAMore
Feb 10, 1943 02:59
79 years ago
2.9

6 km
San Diego County, 36 mi W of El Sentro, Imperial County, California, USAMore
Feb 5, 1943 19:08
79 years ago
3.3

6 km
San Diego County, 35 mi NW of El Sentro, Imperial County, California, USAMore
Feb 4, 1943 12:24
79 years ago
2.7

6 km
21 mi E of Coachella, Riverside County, California, USAMore
Feb 1, 1943 05:18
79 years ago
2.9

6 km
San Diego County, 38 mi NW of El Sentro, Imperial County, California, USAMore
Feb 1, 1943 05:06
79 years ago
2.9

6 km
San Diego County, 38 mi NW of El Sentro, Imperial County, California, USAMore
Jan 28, 1943 23:59
79 years ago
2.7

6 km
5.6 mi SW of Borrego Springs, San Diego County, California, USAMore
Jan 26, 1943 23:42
79 years ago
2.8

6 km
6.6 mi W of Salton City, Imperial County, California, USAMore
Jan 19, 1943 04:15
79 years ago
2.9

6 km
San Diego County, 36 mi NW of El Sentro, Imperial County, California, USAMore
Jan 17, 1943 06:30
79 years ago
2.9

6 km
25 mi W of El Sentro, Imperial County, California, USAMore
Jan 9, 1943 13:46
79 years ago
2.6

6 km
21km NW of Ocotillo, CA (USA)More
Jan 8, 1943 01:24
79 years ago
3.0

6 km
20 mi SE of Borrego Springs, San Diego County, California, USAMore
Jan 8, 1943 00:24
79 years ago
3.7

6 km
San Diego County, 14 mi NW of Ocotillo, Imperial County, California, USAMore
Jan 7, 1943 02:19
79 years ago
3.1

6 km
8.7 mi SE of Borrego Springs, San Diego County, California, USAMore
Jan 6, 1943 14:52
79 years ago
2.9

6 km
San Diego County, 31 mi W of El Sentro, Imperial County, California, USAMore
Jan 4, 1943 06:12
79 years ago
3.1

6 km
San Diego County, 15 mi NW of Ocotillo, Imperial County, California, USAMore
Jan 2, 1943 14:11
79 years ago
4.4

6 km
San Diego County, 17 mi S of La Quinta, Riverside County, California, USAMore
Dec 29, 1942 19:10
79 years ago
3.2

6 km
San Diego County, 36 mi W of El Sentro, Imperial County, California, USAMore
Dec 24, 1942 14:46
79 years ago
3.3

6 km
26 mi W of El Sentro, Imperial County, California, USAMore
Dec 23, 1942 07:43
79 years ago
3.4

6 km
8.3 mi SE of Salton City, Imperial County, California, USAMore
Dec 22, 1942 22:32
79 years ago
2.6

6 km
21km SSE of Ocotillo Wells, CA (USA)More
Dec 19, 1942 13:43
79 years ago
3.0

6 km
15 mi NW of El Sentro, Imperial County, California, USAMore
Dec 19, 1942 02:14
79 years ago
3.3

6 km
13 mi S of Salton City, Imperial County, California, USAMore
Dec 15, 1942 21:38
79 years ago
3.6

6 km
4.5 km E of Ejido Jacumé, Tecate, Baja California, MexicoMore
Dec 14, 1942 10:38
79 years ago
3.5

0.3 km
Rumorosa, 16 km E of Cereso del Hongo, Tecate, Baja California, MexicoMore
Dec 13, 1942 23:25
79 years ago
3.4

6 km
12 mi NW of Ocotillo, Imperial County, California, USAMore
Dec 12, 1942 17:49
79 years ago
3.0

6 km
12 mi NE of Bombay Beach, Imperial County, California, USAMore
Dec 10, 1942 11:35
79 years ago
2.9

6 km
La Ponderosa, 48 km SW of Mexicali, Baja California, MexicoMore
Dec 10, 1942 01:59
79 years ago
3.1

6 km
San Diego County, 14 mi NW of Ocotillo, Imperial County, California, USAMore
Dec 2, 1942 18:52
79 years ago
2.9

6 km
7.3 mi S of Salton City, Imperial County, California, USAMore
Dec 2, 1942 18:41
79 years ago
3.0

6 km
7.3 mi S of Salton City, Imperial County, California, USAMore
Dec 2, 1942 18:39
79 years ago
3.3

6 km
7.3 mi S of Salton City, Imperial County, California, USAMore
Dec 2, 1942 13:34
79 years ago
2.9

6 km
7.3 mi S of Salton City, Imperial County, California, USAMore
Nov 27, 1942 23:12
79 years ago
3.2

0 km
0.8 mi W of Anza, Riverside County, California, USAMore
Nov 22, 1942 06:39
79 years ago
3.5

6 km
San Diego County, 10.9 mi NW of Ocotillo, Imperial County, California, USAMore
Nov 21, 1942 07:20
79 years ago
3.4

6 km
San Diego County, 13 mi NW of Ocotillo, Imperial County, California, USAMore
Nov 21, 1942 06:57
79 years ago
3.0

6 km
13 mi N of Ocotillo, Imperial County, California, USAMore
Nov 20, 1942 07:00
79 years ago
3.3

6 km
San Diego County, 32 mi W of El Sentro, Imperial County, California, USAMore
Nov 19, 1942 12:15
79 years ago
3.4

6 km
3km SW of Borrego Springs, CA (USA)More
Nov 12, 1942 17:56
79 years ago
4.2

6 km
San Juan de Dios, 52 km NE of Ensenada, Baja California, MexicoMore
Nov 12, 1942 00:07
79 years ago
4.2

6 km
15 mi W of El Sentro, Imperial County, California, USAMore
Nov 7, 1942 04:39
79 years ago
4.0

6 km
San Diego County, 8.6 mi NW of Ocotillo, Imperial County, California, USAMore
Nov 5, 1942 14:39
79 years ago
3.0

6 km
8.1 mi NW of Ocotillo, Imperial County, California, USAMore
Nov 3, 1942 10:18
79 years ago
4.0

6 km
13 mi N of Ocotillo, Imperial County, California, USAMore
Nov 3, 1942 05:06
79 years ago
4.4

6 km
24 mi NW of El Sentro, Imperial County, California, USAMore
Nov 2, 1942 12:59
79 years ago
4.5

6 km
5.3 mi NW of El Sentro, Imperial County, California, USAMore
Nov 1, 1942 02:21
79 years ago
2.8

6 km
31 mi W of El Sentro, Imperial County, California, USAMore
Oct 31, 1942 16:40
79 years ago
2.7

6 km
10.7 mi E of Pine Valley, San Diego County, California, USAMore
Oct 31, 1942 15:07
79 years ago
4.0

6 km
15 mi NE of Pine Valley, San Diego County, California, USAMore
Oct 30, 1942 05:35
79 years ago
4.4

6 km
19 mi SE of Borrego Springs, San Diego County, California, USAMore
Oct 29, 1942 20:51
79 years ago
4.1

6 km
20 mi SE of Borrego Springs, San Diego County, California, USAMore
Oct 29, 1942 17:35
79 years ago
3.7

6 km
San Diego County, 16 mi SW of Salton City, Imperial County, California, USAMore
Oct 29, 1942 16:21
79 years ago
4.5

6 km
23 mi NW of El Sentro, Imperial County, California, USAMore
Oct 29, 1942 15:56
79 years ago
4.4

6 km
San Diego County, 18 mi S of Salton City, Imperial County, California, USAMore
Oct 26, 1942 06:15
79 years ago
3.6

6 km
13 mi NW of Calipatria, Imperial County, California, USAMore
Oct 26, 1942 04:34
79 years ago
3.6

6 km
San Diego County, 16 mi NW of Ocotillo, Imperial County, California, USAMore
Oct 26, 1942 03:43
79 years ago
3.7

6 km
5.3 mi W of Calipatria, Imperial County, California, USAMore
Oct 26, 1942 03:21
79 years ago
3.3

6 km
10.3 mi W of Calipatria, Imperial County, California, USAMore
Oct 26, 1942 03:02
79 years ago
4.2

6 km
7.5 mi E of Salton City, Imperial County, California, USAMore
Oct 26, 1942 02:54
79 years ago
3.3

6 km
9.3 mi W of Calipatria, Imperial County, California, USAMore
Oct 25, 1942 18:59
79 years ago
3.9

6 km
San Diego County, 16 mi NW of Ocotillo, Imperial County, California, USAMore
Oct 24, 1942 09:30
79 years ago
3.4

6 km
10.6 mi W of Calipatria, Imperial County, California, USAMore
Oct 23, 1942 01:11
79 years ago
3.7

6 km
San Diego County, 13 mi N of Ocotillo, Imperial County, California, USAMore
Oct 22, 1942 18:13
79 years ago
4.7

6 km
27 mi W of El Sentro, Imperial County, California, USAMore
Oct 22, 1942 12:55
79 years ago
3.7

6 km
17 mi W of Brawley, Imperial County, California, USAMore
Oct 22, 1942 12:36
79 years ago
3.5

6 km
29 mi NW of El Sentro, Imperial County, California, USAMore
Oct 22, 1942 11:39
79 years ago
3.8

6 km
15 mi W of Brawley, Imperial County, California, USAMore
Oct 22, 1942 07:00
79 years ago
3.2

6 km
San Diego County, 14 mi N of Ocotillo, Imperial County, California, USAMore
Oct 22, 1942 02:02
79 years ago
4.4

6 km
7.8 mi N of Niland, Imperial County, California, USAMore
Oct 22, 1942 01:50
79 years ago
5.6

6 km
3.6 mi NW of Niland, Imperial County, California, USAMore
Oct 21, 1942 22:50
79 years ago
3.8

6 km
San Diego County, 14 mi NW of Ocotillo, Imperial County, California, USAMore
Oct 21, 1942 21:49
79 years ago
4.1

6 km
14 mi NE of Pine Valley, San Diego County, California, USAMore
Oct 21, 1942 19:10
79 years ago
4.5

6 km
9.1 mi NW of Ocotillo, Imperial County, California, USAMore
Oct 21, 1942 16:38
79 years ago
4.5

6 km
26 mi NW of El Sentro, Imperial County, California, USAMore
Oct 21, 1942 16:34
79 years ago
4.3

6 km
31 mi W of El Sentro, Imperial County, California, USAMore
Oct 21, 1942 16:26
79 years ago
4.5

6 km
San Diego County, 30 mi W of El Sentro, Imperial County, California, USAMore
Oct 21, 1942 16:25
79 years ago
4.6

6 km
8.6 mi W of Brawley, Imperial County, California, USAMore
Show all

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.