Citizen Weather Observer Program (CWOP)
National Weather Service
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| Click here to view all earthquakes within 200mi of Chino Hills, Ca | |
| Recent Significant Earthquakes* | |||
| Date | Magnitude | Location | mi |
| 05-21-2018 19:55:43 | 2.1 | 2km WNW of Pomona, CA | 9 |
| 05-19-2018 12:26:51 | 3.5 | 8km NE of Aguanga, CA | 60 |
| 05-13-2018 07:33:23 | 3.3 | 22km ESE of Ocotillo Wells, CA | 120 |
| 05-13-2018 05:05:47 | 3.5 | 22km ESE of Ocotillo Wells, CA | 120 |
| 05-12-2018 17:48:06 | 3.4 | 23km ESE of Ocotillo Wells, CA | 120 |
| 05-12-2018 17:37:11 | 3.2 | 22km ESE of Ocotillo Wells, CA | 120 |
| 05-12-2018 17:35:03 | 3.7 | 23km ESE of Ocotillo Wells, CA | 120 |
| 05-12-2018 17:34:57 | 3.5 | 23km ESE of Ocotillo Wells, CA | 120 |
| 05-12-2018 17:28:56 | 3.5 | 22km ESE of Ocotillo Wells, CA | 120 |
| 05-12-2018 00:14:14 | 2.8 | 4km SE of Loma Linda, CA | 27 |
| 05-08-2018 04:51:53 | 3.2 | 11km N of Cabazon, CA | 52 |
| 05-08-2018 04:49:34 | 4.5 | 11km N of Cabazon, CA | 53 |
| 05-04-2018 17:17:28 | 2.6 | 7km NNW of Fontana, CA | 19 |
| 05-04-2018 15:46:51 | 2.1 | 7km NNW of Fontana, CA | 19 |
| 05-04-2018 15:32:54 | 6.9 | 19km SSW of Leilani Estates, Hawaii | 2,501 |
| 05-01-2018 05:53:10 | 3.3 | 10km WSW of San Clemente Is. (SE tip), CA | 92 |
| 05-01-2018 04:53:03 | 3.4 | 10km WSW of San Clemente Is. (SE tip), CA | 91 |
| 05-01-2018 04:22:22 | 3.7 | 10km WSW of San Clemente Is. (SE tip), CA | 91 |
| 04-30-2018 07:33:13 | 2 | 3km NNE of Norco, CA | 9 |
| 04-28-2018 13:24:38 | 2.2 | 11km NNE of Trabuco Canyon, CA | 18 |
| 04-28-2018 13:24:33 | 2.5 | 11km NE of Trabuco Canyon, CA | 18 |
| 04-25-2018 18:36:00 | 3.9 | 16km NNE of Borrego Springs, CA | 90 |
| 04-25-2018 09:52:07 | 3.2 | 6km NNE of Moreno Valley, CA | 28 |
| 04-22-2018 17:46:08 | 3.9 | 13km NNE of Thousand Palms, CA | 79 |
| 04-22-2018 05:22:55 | 2.7 | 18km NNE of Avalon, CA | 45 |
| 04-16-2018 09:36:48 | 3.8 | 15km NW of Grapevine, CA | 108 |
| 04-13-2018 08:24:46 | 3.7 | 22km SSW of Bodfish, CA | 111 |
| 04-12-2018 19:47:50 | 3.3 | 26km NW of Ludlow, CA | 97 |
* Earthquakes in last 60 days are displayed with a magnitude and distance indicating possible detection above background noise in Chino Hills, CA. Source: https://earthquake.usgs.gov/