Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2021-10-09 2021-10-09 23:38:49 UTC	4.5mb	Mauritius - Reunion region -17.327°, 65.550°	10.0 km	-	-	-	✓ Reviewed	USGS →
On October 9, 2021 at 23:38 UTC, a magnitude 4.5 earthquake struck in the Mauritius - Reunion region. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 23:33:46 UTC	4.8mwr	148 km N of Calama, Chile -21.114°, -68.861°	113.8 km	3	-	-	✓ Reviewed	USGS →
A magnitude 4.8 seismic event took place 148 km N of Calama, Chile on October 9, 2021 at 23:33 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 23:13:44 UTC	4.2mb	56 km NNE of Namuac, Philippines 19.094°, 121.341°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.2 seismic event took place 56 km NNE of Namuac, Philippines on October 9, 2021 at 23:13 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 23:13:13 UTC	2.0md	5 km E of P?hala, Hawaii 19.194°, -155.426°	31.6 km	1	-	-	Auto	USGS →
Seismographs logged a magnitude 2.0 earthquake 5 km E of P?hala, Hawaii with origin time 23:13 UTC on October 9, 2021. Coming 1 hours after a magnitude 3.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 23:11:00 UTC	4.4mb	8 km SW of Choco, Peru -15.618°, -72.191°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.4 event was detected 8 km SW of Choco, Peru on October 9, 2021, with origin time 23:11 UTC. Coming 9 hours after a magnitude 4.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 23:08:44 UTC	3.6ml	7 km ENE of P?hala, Hawaii 19.223°, -155.415°	35.6 km	3	III	-	✓ Reviewed	USGS →
This magnitude 3.6 event was detected 7 km ENE of P?hala, Hawaii on October 9, 2021, with origin time 23:08 UTC. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 23:07:50 UTC	3.8mb	84 km NE of Adak, Alaska 52.404°, -175.752°	182.5 km	-	I	-	✓ Reviewed	USGS →
At 23:07 UTC on October 9, 2021, a magnitude 3.8 tremor occurred 84 km NE of Adak, Alaska. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 23:05:03 UTC	3.0md	Puerto Rico region 18.650°, -66.751°	13.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 3.0 earthquake in the Puerto Rico region with origin time 23:05 UTC on October 9, 2021. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:58:23 UTC	2.5ml	39 km W of Mentone, Texas 31.708°, -104.019°	7.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.5 earthquake 39 km W of Mentone, Texas with origin time 22:58 UTC on October 9, 2021. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:51:25 UTC	2.6md	1km NW of The Geysers, CA 38.786°, -122.767°	1.6 km	2	-	-	✓ Reviewed	USGS →
On October 9, 2021 at 22:51 UTC, a magnitude 2.6 earthquake struck 1km NW of The Geysers, CA. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:48:13 UTC	2.4ml	10 km ENE of Alta, Wyoming 43.783°, -110.918°	10.7 km	2	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.4 earthquake 10 km ENE of Alta, Wyoming with origin time 22:48 UTC on October 9, 2021. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:45:16 UTC	3.0ml	50 km SSE of Atka, Alaska 51.778°, -173.914°	35.0 km	-	-	-	✓ Reviewed	USGS →
At 22:45 UTC on October 9, 2021, a magnitude 3.0 tremor occurred 50 km SSE of Atka, Alaska. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:40:32 UTC	2.1md	6km S of San Juan Bautista, CA 36.788°, -121.525°	8.1 km	-	-	-	✓ Reviewed	USGS →
October 9, 2021 brought a magnitude 2.1 earthquake 6km S of San Juan Bautista, CA, logged at 22:40 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:30:46 UTC	3.2md	35 km NNW of San Antonio, Puerto Rico 18.770°, -67.272°	20.0 km	-	-	-	✓ Reviewed	USGS →
On October 9, 2021 at 22:30 UTC, a magnitude 3.2 earthquake struck 35 km NNW of San Antonio, Puerto Rico. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:15:28 UTC	2.4ml	67 km N of Yakutat, Alaska 60.150°, -139.627°	4.2 km	-	-	-	✓ Reviewed	USGS →
On October 9, 2021, worldwide seismic activity registered a magnitude 2.4 earthquake 67 km N of Yakutat, Alaska at 22:15 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:04:37 UTC	4.6mb	central Mid-Atlantic Ridge -0.186°, -18.308°	10.0 km	-	-	-	✓ Reviewed	USGS →
At 22:04 UTC on October 9, 2021, a magnitude 4.6 tremor occurred near central Mid-Atlantic Ridge. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 22:02:51 UTC	2.3ml	27 km NW of Stanley, Idaho 44.369°, -115.212°	15.3 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.3 seismic event took place 27 km NW of Stanley, Idaho on October 9, 2021 at 22:02 UTC. Coming 15 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 21:49:15 UTC	4.3mb	Mauritius - Reunion region -17.401°, 66.159°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.3 seismic event took place in the Mauritius - Reunion region on October 9, 2021 at 21:49 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 21:28:45 UTC	4.7mb	146 km SSE of San Jose Village, Northern Mariana Islands 13.780°, 146.224°	35.0 km	-	-	-	✓ Reviewed	USGS →
On October 9, 2021 at 21:28 UTC, a magnitude 4.7 earthquake struck 146 km SSE of San Jose Village, Northern Mariana Islands. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 21:10:58 UTC	2.0ml	14 km S of Princeton, Canada 49.326°, -120.508°	-0.4 km	-	-	-	✓ Reviewed	USGS →
On October 9, 2021 at 21:10 UTC, a magnitude 2.0 earthquake struck 14 km S of Princeton, Canada. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 21:08:25 UTC	2.2ml	59 km SE of Sand Point, Alaska 54.946°, -159.867°	22.8 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.2 event was detected 59 km SE of Sand Point, Alaska on October 9, 2021, with origin time 21:08 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:52:09 UTC	2.3ml	59 km SSW of Whites City, New Mexico 31.661°, -104.564°	7.7 km	-	-	-	✓ Reviewed	USGS →
October 9, 2021 brought a magnitude 2.3 earthquake 59 km SSW of Whites City, New Mexico, logged at 20:52 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:37:39 UTC	4.2mb	59 km S of B?rjand, Iran 32.332°, 59.127°	10.0 km	-	-	-	✓ Reviewed	USGS →
October 9, 2021 brought a magnitude 4.2 earthquake 59 km S of B?rjand, Iran, logged at 20:37 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:28:15 UTC	2.5ml	66 km SW of Port Clarence, Alaska 64.891°, -167.953°	27.3 km	-	-	-	✓ Reviewed	USGS →
On October 9, 2021, worldwide seismic activity registered a magnitude 2.5 earthquake 66 km SW of Port Clarence, Alaska at 20:28 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:27:46 UTC	2.7ml	97 km SE of Ugashik, Alaska 56.965°, -156.144°	5.9 km	-	-	-	✓ Reviewed	USGS →
At 20:27 UTC on October 9, 2021, a magnitude 2.7 tremor occurred 97 km SE of Ugashik, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.3 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:23:32 UTC	3.3ml	89 km SE of Ugashik, Alaska 57.014°, -156.230°	11.5 km	-	II	-	✓ Reviewed	USGS →
Reports of a magnitude 3.3 earthquake 89 km SE of Ugashik, Alaska came in on October 9, 2021 at 20:23 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:17:40 UTC	3.3md	70 km N of Culebra, Puerto Rico 18.943°, -65.281°	24.0 km	1	-	-	✓ Reviewed	USGS →
A magnitude 3.3 seismic event took place 70 km N of Culebra, Puerto Rico on October 9, 2021 at 20:17 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:12:50 UTC	2.1ml	64 km ENE of Pedro Bay, Alaska 59.957°, -153.014°	105.7 km	-	-	-	✓ Reviewed	USGS →
On October 9, 2021, worldwide seismic activity registered a magnitude 2.1 earthquake 64 km ENE of Pedro Bay, Alaska at 20:12 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:07:08 UTC	2.1ml	7 km E of P?hala, Hawaii 19.212°, -155.405°	34.1 km	-	-	-	Auto	USGS →
A magnitude 2.1 earthquake was recorded 7 km E of P?hala, Hawaii on October 9, 2021 at 20:07 UTC. It arrived roughly 1 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-10-09 2021-10-09 20:06:35 UTC	2.4ml	5 km E of P?hala, Hawaii 19.211°, -155.423°	10.0 km	-	-	-	Auto	USGS →
On October 9, 2021 at 20:06 UTC, a magnitude 2.4 earthquake struck 5 km E of P?hala, Hawaii. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.

Legend:

Mag: Magnitude (magType = ml, mb, mw, etc.)

Felt: Number of DYFI felt reports

MMI: Modified Mercalli Intensity (I-X+)

Alert: PAGER alert level

Depth: Shallow (<70km), Intermediate, Deep (>300km)

Status: Auto = preliminary, Reviewed = verified by seismologist

Click any row to see additional technical details.

About This Page

This page shows all earthquakes recorded by the USGS Earthquake Hazards Program during the 24-hour UTC period on October 9, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.

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