Date and time | Mag Depth | Nearest volcano (distance) | Location | Details | Map |
| Sunday, November 28, 2021 22:49 GMT (10 earthquakes) | |||||
| Nov 28, 2021 2:49 pm (GMT -8) (Nov 28, 2021 22:49 GMT) | ? n/a | 1.2 mi west of Ontario, San Bernardino County, California, USA (preliminary) Early Alert! I FELT IT - 1 report | More | Map | |
| Nov 28, 2021 2:16 am (GMT -8) (Nov 28, 2021 10:16 GMT) | 1.0 7.3 km | 12km NW of Big Bear Lake, CA | More | Map | |
| Nov 27, 2021 10:30 pm (GMT -8) (Nov 28, 2021 06:30 GMT) | 1.1 7.2 km | 4km N of Yucca Valley, CA | More | Map | |
| Nov 27, 2021 9:57 pm (GMT -8) (Nov 28, 2021 05:57 GMT) | 1.1 6.2 km | 5km W of Yucaipa, CA | More | Map | |
| Nov 27, 2021 9:10 pm (GMT -8) (Nov 28, 2021 05:10 GMT) | 1.6 10.7 km | 5km S of Loma Linda, CA | More | Map | |
| Nov 27, 2021 8:57 pm (GMT -8) (Nov 28, 2021 04:57 GMT) | 1.5 4.3 km | 6km SSW of Winchester, CA | More | Map | |
| Nov 27, 2021 8:19 pm (GMT -8) (Nov 28, 2021 04:19 GMT) | 1.3 7.5 km | 6km NW of Lakeland Village, CA | More | Map | |
| Nov 27, 2021 6:45 pm (GMT -8) (Nov 28, 2021 02:45 GMT) | 1.3 10.3 km | 0km E of Upland, CA | More | Map | |
| Nov 27, 2021 5:35 pm (GMT -8) (Nov 28, 2021 01:35 GMT) | ? n/a | 1.9 mi south of Murrieta, Riverside County, California, USA (unconfirmed) I FELT IT - 3 reports | More | Map | |
| Nov 27, 2021 4:20 pm (GMT -8) (Nov 28, 2021 00:20 GMT) | 2.0 6.1 km | 4km W of Yucaipa, CA | More | Map | |
| Saturday, November 27, 2021 20:34 GMT (9 earthquakes) | |||||
| Nov 27, 2021 12:34 pm (GMT -8) (Nov 27, 2021 20:34 GMT) | 1.0 11 km | 4km E of Moreno Valley, CA | More | Map | |
| Nov 27, 2021 9:45 am (GMT -8) (Nov 27, 2021 17:45 GMT) | 1.2 8.2 km | 3km W of Big Bear Lake, CA | More | Map | |
| Nov 27, 2021 8:07 am (GMT -8) (Nov 27, 2021 16:07 GMT) | 1.8 14 km | 3km E of Calimesa, CA | More | Map | |
| Nov 27, 2021 6:12 am (GMT -8) (Nov 27, 2021 14:12 GMT) | 2.6 8.2 km | 5.8 mi east of Big Bear, San Bernardino County, California, USA I FELT IT | More | Map | |
| Nov 27, 2021 12:11 am (GMT -8) (Nov 27, 2021 08:11 GMT) | 1.0 9.3 km | 10km NNW of Banning, CA | More | Map | |
| Nov 26, 2021 11:51 pm (GMT -8) (Nov 27, 2021 07:51 GMT) | 1.6 15 km | 6km E of Calimesa, CA | More | Map | |
| Nov 26, 2021 8:20 pm (GMT -8) (Nov 27, 2021 04:20 GMT) | 1.0 11 km | 9km ENE of Running Springs, CA | More | Map | |
| Nov 26, 2021 4:13 pm (GMT -8) (Nov 27, 2021 00:13 GMT) | 1.6 12 km | 16km ESE of Anza, CA | More | Map | |
| Nov 26, 2021 4:13 pm (GMT -8) (Nov 27, 2021 00:13 GMT) | 1.3 15 km | 18km ESE of Anza, CA | More | Map | |
| Friday, November 26, 2021 19:54 GMT (6 earthquakes) | |||||
| Nov 26, 2021 11:54 am (GMT -8) (Nov 26, 2021 19:54 GMT) | 1.1 2.5 km | 13km NE of Yucaipa, CA | More | Map | |
| Nov 26, 2021 7:02 am (GMT -8) (Nov 26, 2021 15:02 GMT) | 2.0 15 km | 10km NW of Garnet, CA | More | Map | |
| Nov 26, 2021 1:01 am (GMT -8) (Nov 26, 2021 09:01 GMT) | ? n/a | 0.6 mi south of Irvine, Orange County, California, USA (unconfirmed) I FELT IT - 2 reports | More | Map | |
| Nov 25, 2021 10:48 pm (GMT -8) (Nov 26, 2021 06:48 GMT) | 1.0 6.8 km | 12km SE of Big Bear City, CA | More | Map | |
| Nov 25, 2021 5:38 pm (GMT -8) (Nov 26, 2021 01:38 GMT) | ? n/a | 4.9 mi west of Mission Viejo, Orange County, California, USA (unconfirmed) I FELT IT - 1 report | More | Map | |
| Nov 25, 2021 4:46 pm (GMT -8) (Nov 26, 2021 00:46 GMT) | 1.2 17 km | 2km E of Lytle Creek, CA | More | Map | |
| Thursday, November 25, 2021 22:57 GMT (6 earthquakes) | |||||
| Nov 25, 2021 2:57 pm (GMT -8) (Nov 25, 2021 22:57 GMT) | 1.3 7.7 km | 7km S of Calimesa, CA | More | Map | |
| Nov 25, 2021 6:03 am (GMT -8) (Nov 25, 2021 14:03 GMT) | 1.4 8.2 km | 13km WNW of Anza, CA | More | Map | |
| Nov 25, 2021 6:00 am (GMT -8) (Nov 25, 2021 14:00 GMT) | ? n/a | 2.3 mi northwest of San Clemente, Orange County, California, USA (unconfirmed) I FELT IT - 6 reports | More | Map | |
| Nov 25, 2021 3:17 am (GMT -8) (Nov 25, 2021 11:17 GMT) | 1.7 6.3 km | 39km ENE of Lucerne Valley, CA | More | Map | |
| Nov 24, 2021 6:22 pm (GMT -8) (Nov 25, 2021 02:22 GMT) | 1.0 14 km | 9km SSW of Idyllwild, CA | More | Map | |
| Nov 24, 2021 5:57 pm (GMT -8) (Nov 25, 2021 01:57 GMT) | 1.4 3.4 km | 9km NE of Aguanga, CA | More | Map | |
| Wednesday, November 24, 2021 20:02 GMT (7 earthquakes) | |||||
| Nov 24, 2021 12:02 pm (GMT -8) (Nov 24, 2021 20:02 GMT) | 1.0 0.5 km | Quarry Blast - 2km ESE of Home Gardens, CA | More | Map | |
| Nov 24, 2021 11:13 am (GMT -8) (Nov 24, 2021 19:13 GMT) | ? n/a | 2.4 mi southwest of Diamond Bar, Condado de Los Angeles County, California, USA (unconfirmed) I FELT IT - 1 report | More | Map | |
| Nov 24, 2021 9:47 am (GMT -8) (Nov 24, 2021 17:47 GMT) | ? n/a | 11 mi west of Hesperia, San Bernardino County, California, USA (unconfirmed) I FELT IT - 6 reports | More | Map | |
| Nov 24, 2021 6:08 am (GMT -8) (Nov 24, 2021 14:08 GMT) | 1.0 15 km | 10km SW of Calimesa, CA | More | Map | |
| Nov 23, 2021 10:08 pm (GMT -8) (Nov 24, 2021 06:08 GMT) | ? n/a | 8.4 mi northeast of Highland, San Bernardino County, California, USA (unconfirmed) I FELT IT - 1 report | More | Map | |
| Nov 23, 2021 9:28 pm (GMT -8) (Nov 24, 2021 05:28 GMT) | 1.3 14 km | 19km ESE of Anza, CA | More | Map | |
| Nov 23, 2021 9:27 pm (GMT -8) (Nov 24, 2021 05:27 GMT) | 1.2 14 km | 20km ESE of Anza, CA | More | Map | |
| Tuesday, November 23, 2021 18:20 GMT (4 earthquakes) | |||||
| Nov 23, 2021 10:20 am (GMT -8) (Nov 23, 2021 18:20 GMT) | 1.4 0.9 km | Quarry Blast - 12km N of Victorville, CA | More | Map | |
| Nov 23, 2021 10:01 am (GMT -8) (Nov 23, 2021 18:01 GMT) | 1.9 3.3 km | 4km SSE of Home Gardens, CA | More | Map | |
| Nov 23, 2021 6:08 am (GMT -8) (Nov 23, 2021 14:08 GMT) | ? n/a | 4.7 mi northeast of West Covina, Condado de Los Angeles County, California, USA (unconfirmed) I FELT IT - 1 report | More | Map | |
| Nov 22, 2021 5:18 pm (GMT -8) (Nov 23, 2021 01:18 GMT) | 1.3 21 km | 4km WNW of Desert Hot Springs, CA | More | Map | |
| Monday, November 22, 2021 22:47 GMT (10 earthquakes) | |||||
| Nov 22, 2021 2:47 pm (GMT -8) (Nov 22, 2021 22:47 GMT) | 1.7 10.9 km | 8km NE of Moreno Valley, CA | More | Map | |
| Nov 22, 2021 2:46 pm (GMT -8) (Nov 22, 2021 22:46 GMT) | 1.2 10.4 km | 8km NE of Moreno Valley, CA | More | Map | |
| Nov 22, 2021 12:34 pm (GMT -8) (Nov 22, 2021 20:34 GMT) | 1.0 0.5 km | 2km SE of Home Gardens, CA | More | Map | |
| Nov 22, 2021 12:25 pm (GMT -8) (Nov 22, 2021 20:25 GMT) | ? n/a | 4.1 mi north of Perris, Riverside County, California, USA (unconfirmed) I FELT IT - 1 report | More | Map | |
| Nov 22, 2021 11:04 am (GMT -8) (Nov 22, 2021 19:04 GMT) | ? n/a | Orange County, 4 mi west of Corona, Riverside County, California, USA (unconfirmed) I FELT IT - 1 report | More | Map | |
| Nov 22, 2021 11:00 am (GMT -8) (Nov 22, 2021 19:00 GMT) | 1.2 16 km | 0km E of Colton, CA | More | Map | |
| Nov 22, 2021 10:06 am (GMT -8) (Nov 22, 2021 18:06 GMT) | 1.2 14 km | 8km SW of Morongo Valley, CA | More | Map | |
| Nov 21, 2021 8:42 pm (GMT -8) (Nov 22, 2021 04:42 GMT) | 1.0 13 km | 2km N of Loma Linda, CA | More | Map | |
| Nov 21, 2021 8:00 pm (GMT -8) (Nov 22, 2021 04:00 GMT) | 1.4 9.7 km | 5km NNW of Rancho Cucamonga, CA | More | Map | |
| Nov 21, 2021 4:18 pm (GMT -8) (Nov 22, 2021 00:18 GMT) | 1.4 3.5 km | 6km NNW of Yucaipa, CA | More | Map | |
Estimated combined seismic energy released: 9.3 x 108 joules (259 kilowatt hours, equivalent to 0.223 tons of TNT) More info
