Earthquakes on October 3, 2025: 257 Worldwide, Largest M6.1

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2025-10-03 2025-10-03 23:43:39 UTC	2.0ml	64 km NW of Rachel, Nevada 38.088°, -116.222°	5.9 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.0 earthquake 64 km NW of Rachel, Nevada with origin time 23:43 UTC on October 3, 2025. The hypocenter lay at 5.9 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 38.088°N, -116.222°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 23:42:17 UTC	4.9mb	53 km ENE of Santa Monica, Philippines 10.269°, 126.458°	34.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.9 earthquake was recorded 53 km ENE of Santa Monica, Philippines on October 3, 2025 at 23:42 UTC. This was a shallow crustal earthquake, focused at 34.0 km depth. Coordinates: 10.269°, 126.458°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 23:13:10 UTC	4.5mb	182 km SSE of Vilyuchinsk, Russia 51.400°, 159.371°	35.0 km	-	-	-	✓ Reviewed	USGS →
On October 3, 2025 at 23:13 UTC, a magnitude 4.5 earthquake struck 182 km SSE of Vilyuchinsk, Russia. The hypocenter lay at 35.0 km, placing this in the shallow crustal category. Geolocation places the event at 51.400°N, 159.371°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 23:08:56 UTC	4.2mb	168 km ESE of Petropavlovsk-Kamchatsky, Russia 52.242°, 160.720°	30.9 km	-	-	-	✓ Reviewed	USGS →
October 3, 2025 brought a magnitude 4.2 earthquake 168 km ESE of Petropavlovsk-Kamchatsky, Russia, logged at 23:08 UTC. At a depth of 30.9 km, the event was shallow crustal. The epicenter is at 52.242°, 160.720°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 23:02:44 UTC	4.6mb	29 km E of Cortes, Philippines 9.295°, 126.455°	39.8 km	-	-	-	✓ Reviewed	USGS →
On October 3, 2025 at 23:02 UTC, a magnitude 4.6 earthquake struck 29 km E of Cortes, Philippines. The event originated approximately 39.8 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 9.295°, 126.455°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 22:57:18 UTC	4.5mb	182 km SSE of Vilyuchinsk, Russia 51.421°, 159.462°	34.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.5 earthquake was recorded 182 km SSE of Vilyuchinsk, Russia on October 3, 2025 at 22:57 UTC. At a depth of 34.6 km, the event was shallow crustal. Coordinates: 51.421°, 159.462°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 22:52:41 UTC	4.9mb	159 km SSE of Vilyuchinsk, Russia 51.635°, 159.415°	38.2 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.9 earthquake 159 km SSE of Vilyuchinsk, Russia with origin time 22:52 UTC on October 3, 2025. The hypocenter lay at 38.2 km, placing this in the shallow crustal category. The epicenter is at 51.635°, 159.415°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 21:53:56 UTC	4.1mb	39 km ESE of Severo-Kuril’sk, Russia 50.524°, 156.628°	82.2 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.1 earthquake 39 km ESE of Severo-Kuril’sk, Russia came in on October 3, 2025 at 21:53 UTC. At a depth of 82.2 km, the event was intermediate depth. Coordinates: 50.524°, 156.628°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 21:34:38 UTC	2.3md	11 km WSW of Manton, CA 40.377°, -121.986°	11.0 km	-	-	-	Auto	USGS →
This magnitude 2.3 event was detected 11 km WSW of Manton, CA on October 3, 2025, with origin time 21:34 UTC. It arrived roughly 8 hours after a larger magnitude 3.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The hypocenter lay at 11.0 km, placing this in the shallow crustal category. The epicenter is at 40.377°, -121.986°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 21:34:07 UTC	2.3md	11 km WSW of Manton, CA 40.377°, -121.986°	9.8 km	-	-	-	Auto	USGS →
On October 3, 2025, worldwide seismic activity registered a magnitude 2.3 earthquake 11 km WSW of Manton, CA at 21:34 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 8 hours earlier. This was a shallow crustal earthquake, focused at 9.8 km depth. Geolocation places the event at 40.377°N, -121.986°E. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 21:10:58 UTC	2.9md	9 km WSW of Manton, CA 40.394°, -121.970°	5.1 km	1	-	-	Auto	USGS →
Reports of a magnitude 2.9 earthquake 9 km WSW of Manton, CA came in on October 3, 2025 at 21:10 UTC. It arrived roughly 8 hours after a larger magnitude 3.4 mainshock in the same 20 km area, placing it within the typical aftershock window. A small number of nearby observers (1) submitted felt reports to the USGS. This was a shallow crustal earthquake, focused at 5.1 km depth. The epicenter is at 40.394°, -121.970°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 20:49:02 UTC	4.3mb	192 km SSE of Vilyuchinsk, Russia 51.457°, 159.874°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.3 seismic event took place 192 km SSE of Vilyuchinsk, Russia on October 3, 2025 at 20:49 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.1 earthquake that occurred about 5 hours earlier. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. Geolocation places the event at 51.457°N, 159.874°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 20:38:41 UTC	4.7mb	46 km E of Kokopo, Papua New Guinea -4.274°, 152.682°	62.3 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.7 earthquake was recorded 46 km E of Kokopo, Papua New Guinea on October 3, 2025 at 20:38 UTC. At a depth of 62.3 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at -4.274°, 152.682°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 20:36:00 UTC	5.2mww	185 km SSE of Vilyuchinsk, Russia 51.518°, 159.846°	17.8 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 5.2 earthquake 185 km SSE of Vilyuchinsk, Russia with origin time 20:36 UTC on October 3, 2025. Coming 4 hours after a magnitude 6.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. It ranks as the third largest event in the current dataset. The event originated approximately 17.8 km below the surface, classifying it as shallow crustal. Coordinates: 51.518°, 159.846°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 20:29:31 UTC	4.9mb	67 km SSW of Dalbandin, Pakistan 28.329°, 64.132°	41.9 km	-	-	-	✓ Reviewed	USGS →
On October 3, 2025, worldwide seismic activity registered a magnitude 4.9 earthquake 67 km SSW of Dalbandin, Pakistan at 20:29 UTC. At a depth of 41.9 km, the event was shallow crustal. Geolocation places the event at 28.329°N, 64.132°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 20:09:49 UTC	2.4ml	39 km NNW of Toyah, Texas 31.622°, -104.005°	8.4 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.4 earthquake 39 km NNW of Toyah, Texas with origin time 20:09 UTC on October 3, 2025. The hypocenter lay at 8.4 km, placing this in the shallow crustal category. Coordinates: 31.622°, -104.005°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 19:53:23 UTC	4.4mb	38 km W of Bam, Iran 29.145°, 57.967°	10.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.4 earthquake 38 km W of Bam, Iran came in on October 3, 2025 at 19:53 UTC. This was a shallow crustal earthquake, focused at 10.0 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 29.145°, 57.967°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 19:50:40 UTC	4.6mb	161 km SSE of Vilyuchinsk, Russia 51.669°, 159.567°	23.5 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.6 earthquake was recorded 161 km SSE of Vilyuchinsk, Russia on October 3, 2025 at 19:50 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.7 earthquake that occurred about 3 hours earlier. This was a shallow crustal earthquake, focused at 23.5 km depth. Geolocation places the event at 51.669°N, 159.567°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 19:47:16 UTC	4.3mb	178 km SE of Vilyuchinsk, Russia 51.714°, 160.110°	24.3 km	-	-	-	✓ Reviewed	USGS →
October 3, 2025 brought a magnitude 4.3 earthquake 178 km SE of Vilyuchinsk, Russia, logged at 19:47 UTC. Coming 4 hours after a magnitude 6.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. This was a shallow crustal earthquake, focused at 24.3 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 51.714°, 160.110°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 19:29:56 UTC	4.3mb	151 km SE of Vilyuchinsk, Russia 51.818°, 159.681°	54.6 km	-	-	-	✓ Reviewed	USGS →
On October 3, 2025 at 19:29 UTC, a magnitude 4.3 earthquake struck 151 km SE of Vilyuchinsk, Russia. It arrived roughly 3 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The hypocenter lay at 54.6 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 51.818°, 159.681°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 19:22:03 UTC	4.7mb	68 km W of Kirakira, Solomon Islands -10.466°, 161.294°	72.2 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.7 earthquake 68 km W of Kirakira, Solomon Islands with origin time 19:22 UTC on October 3, 2025. The event originated approximately 72.2 km below the surface, classifying it as intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Geolocation places the event at -10.466°N, 161.294°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:57:00 UTC	3.0ml	1 km SE of Montescano, Italy 45.020°, 9.300°	27.1 km	1	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 3.0 earthquake 1 km SE of Montescano, Italy at 18:57 UTC on October 3, 2025. A small number of nearby observers (1) submitted felt reports to the USGS. At a depth of 27.1 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 45.020°N, 9.300°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:56:24 UTC	2.1md	6 km SSE of Portola Valley, CA 37.328°, -122.217°	8.6 km	1	-	-	Auto	USGS →
October 3, 2025 brought a magnitude 2.1 earthquake 6 km SSE of Portola Valley, CA, logged at 18:56 UTC. A small number of nearby observers (1) submitted felt reports to the USGS. At a depth of 8.6 km, the event was shallow crustal. Geolocation places the event at 37.328°N, -122.217°E. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:47:20 UTC	4.4mb	141 km SE of Vilyuchinsk, Russia 51.912°, 159.637°	61.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.4 seismic event took place 141 km SE of Vilyuchinsk, Russia on October 3, 2025 at 18:47 UTC. It arrived roughly 2 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The hypocenter lay at 61.6 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 51.912°, 159.637°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:39:53 UTC	2.3md	11 km WSW of Manton, CA 40.364°, -121.975°	21.7 km	1	-	-	Auto	USGS →
Reports of a magnitude 2.3 earthquake 11 km WSW of Manton, CA came in on October 3, 2025 at 18:39 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 5 hours earlier. A small number of nearby observers (1) submitted felt reports to the USGS. At a depth of 21.7 km, the event was shallow crustal. Geolocation places the event at 40.364°N, -121.975°E. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:26:55 UTC	4.3mb	161 km SSE of Vilyuchinsk, Russia 51.660°, 159.559°	49.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.3 earthquake was recorded 161 km SSE of Vilyuchinsk, Russia on October 3, 2025 at 18:26 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.7 earthquake that occurred about 2 hours earlier. At a depth of 49.6 km, the event was shallow crustal. Geolocation places the event at 51.660°N, 159.559°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:19:59 UTC	2.3md	11 km WSW of Manton, CA 40.381°, -121.981°	10.5 km	-	-	-	Auto	USGS →
Seismographs logged a magnitude 2.3 earthquake 11 km WSW of Manton, CA with origin time 18:19 UTC on October 3, 2025. It arrived roughly 5 hours after a larger magnitude 3.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event originated approximately 10.5 km below the surface, classifying it as shallow crustal. The epicenter is at 40.381°, -121.981°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:12:33 UTC	4.7mb	26 km NE of Isangel, Vanuatu -19.345°, 169.425°	255.7 km	-	-	-	✓ Reviewed	USGS →
On October 3, 2025, worldwide seismic activity registered a magnitude 4.7 earthquake 26 km NE of Isangel, Vanuatu at 18:12 UTC. This was a intermediate depth earthquake, focused at 255.7 km depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Coordinates: -19.345°, 169.425°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:12:23 UTC	4.7mb	28 km WSW of Lata, Solomon Islands -10.860°, 165.573°	35.0 km	-	-	-	✓ Reviewed	USGS →
At 18:12 UTC on October 3, 2025, a magnitude 4.7 tremor occurred 28 km WSW of Lata, Solomon Islands. The hypocenter lay at 35.0 km, placing this in the shallow crustal category. The epicenter is at -10.860°, 165.573°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-03 2025-10-03 18:08:22 UTC	4.8mb	90 km SSE of Vilyuchinsk, Russia 52.131°, 158.681°	87.4 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.8 earthquake 90 km SSE of Vilyuchinsk, Russia came in on October 3, 2025 at 18:08 UTC. At a depth of 87.4 km, the event was intermediate depth. Coordinates: 52.131°, 158.681°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.8 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 3, 2025. 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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