Earthquakes on October 27, 2025: 201 Worldwide, Largest M6.5

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2025-10-27 2025-10-27 23:51:36 UTC	4.6mb	149 km E of Beauséjour, Guadeloupe 16.524°, -59.695°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.6 earthquake was recorded 149 km E of Beauséjour, Guadeloupe on October 27, 2025 at 23:51 UTC. Coming 11 hours after a magnitude 6.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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: 16.524°, -59.695°. 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.
2025-10-27 2025-10-27 23:45:49 UTC	4.4mb	94 km SSE of Sand Point, Alaska 54.520°, -160.086°	35.0 km	-	II	-	✓ Reviewed	USGS →
A magnitude 4.4 earthquake was recorded 94 km SSE of Sand Point, Alaska on October 27, 2025 at 23:45 UTC. Maximum shaking intensity peaked at MMI 2.2 (weak). At a depth of 35.0 km, the event was shallow crustal. The epicenter is at 54.520°, -160.086°. 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.
2025-10-27 2025-10-27 23:38:26 UTC	4.5mb	230 km S of Pagar Alam, Indonesia -6.083°, 102.905°	10.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.5 earthquake 230 km S of Pagar Alam, Indonesia at 23:38 UTC on October 27, 2025. 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. The epicenter is at -6.083°, 102.905°. 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.
2025-10-27 2025-10-27 23:35:13 UTC	5.1mb	45 km SW of Reuleuet, Indonesia 4.946°, 95.979°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 5.1 event was detected 45 km SW of Reuleuet, Indonesia on October 27, 2025, with origin time 23:35 UTC. The event originated approximately 10.0 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 4.946°, 95.979°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 23:33:42 UTC	2.2ml	5 km NNW of Boron, CA 35.035°, -117.674°	-0.8 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.2 earthquake 5 km NNW of Boron, CA came in on October 27, 2025 at 23:33 UTC. At a depth of just -0.8 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Geolocation places the event at 35.035°N, -117.674°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 23:30:12 UTC	4.1mb	10 km SE of Sındırgı, Turkey 39.174°, 28.256°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.1 earthquake was recorded 10 km SE of Sındırgı, Turkey on October 27, 2025 at 23:30 UTC. Coming 4 hours after a magnitude 6.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of 10.0 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 39.174°, 28.256°. 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.
2025-10-27 2025-10-27 23:29:00 UTC	4.2mb	151 km E of Beauséjour, Guadeloupe 16.530°, -59.670°	10.0 km	-	-	-	✓ Reviewed	USGS →
At 23:29 UTC on October 27, 2025, a magnitude 4.2 tremor occurred 151 km E of Beauséjour, Guadeloupe. This event falls inside the aftershock decay of a nearby magnitude 6.5 earthquake that occurred about 11 hours earlier. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 16.530°N, -59.670°E. 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.
2025-10-27 2025-10-27 23:25:55 UTC	2.9ml	16 km W of Petersville, Alaska 62.494°, -151.090°	82.7 km	-	-	-	Auto	USGS →
October 27, 2025 brought a magnitude 2.9 earthquake 16 km W of Petersville, Alaska, logged at 23:25 UTC. At a depth of 82.7 km, the event was intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Geolocation places the event at 62.494°N, -151.090°E. 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.
2025-10-27 2025-10-27 23:17:46 UTC	4.3mb	201 km SSE of Vilyuchinsk, Russia 51.279°, 159.604°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.3 seismic event took place 201 km SSE of Vilyuchinsk, Russia on October 27, 2025 at 23:17 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.4 earthquake that occurred about 17 hours earlier. The hypocenter lay at 10.0 km, placing this in the shallow crustal category. Geolocation places the event at 51.279°N, 159.604°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.
2025-10-27 2025-10-27 23:17:13 UTC	2.2ml	37 km SSE of Central, Alaska 65.244°, -144.605°	0.0 km	-	-	-	Auto	USGS →
A magnitude 2.2 seismic event took place 37 km SSE of Central, Alaska on October 27, 2025 at 23:17 UTC. At a depth of just 0.0 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Coordinates: 65.244°, -144.605°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 23:10:00 UTC	4.0mb	132 km S of Néa Anatolí, Greece 33.815°, 25.720°	35.0 km	-	-	-	✓ Reviewed	USGS →
At 23:10 UTC on October 27, 2025, a magnitude 4.0 tremor occurred 132 km S of Néa Anatolí, Greece. The hypocenter lay at 35.0 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 33.815°, 25.720°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 23:07:39 UTC	2.4ml	0 km E of Beaver, Utah 38.276°, -112.631°	4.0 km	-	-	-	✓ Reviewed	USGS →
On October 27, 2025 at 23:07 UTC, a magnitude 2.4 earthquake struck 0 km E of Beaver, Utah. At a depth of just 4.0 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 38.276°, -112.631°. 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.
2025-10-27 2025-10-27 23:07:29 UTC	2.6ml	20 km WSW of Glacier View, Alaska 61.746°, -148.019°	21.7 km	-	-	-	Auto	USGS →
A magnitude 2.6 earthquake was recorded 20 km WSW of Glacier View, Alaska on October 27, 2025 at 23:07 UTC. This was a shallow crustal earthquake, focused at 21.7 km depth. The epicenter is at 61.746°, -148.019°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 23:03:46 UTC	2.2md	11 km SSW of Pleasant Plains, Arkansas 35.457°, -91.670°	7.4 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.2 earthquake 11 km SSW of Pleasant Plains, Arkansas at 23:03 UTC on October 27, 2025. At a depth of 7.4 km, the event was shallow crustal. Coordinates: 35.457°, -91.670°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 23:00:36 UTC	4.8mb	102 km E of Petropavlovsk-Kamchatsky, Russia 53.214°, 160.132°	58.5 km	-	-	-	✓ Reviewed	USGS →
October 27, 2025 brought a magnitude 4.8 earthquake 102 km E of Petropavlovsk-Kamchatsky, Russia, logged at 23:00 UTC. At a depth of 58.5 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 53.214°, 160.132°. 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.
2025-10-27 2025-10-27 22:55:53 UTC	4.2mb	11 km W of Sındırgı, Turkey 39.222°, 28.048°	10.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.2 earthquake 11 km W of Sındırgı, Turkey at 22:55 UTC on October 27, 2025. Coming 3 hours after a magnitude 6.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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: 39.222°, 28.048°. 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.
2025-10-27 2025-10-27 22:41:27 UTC	2.1ml	12 km E of Floriston, California 39.393°, -119.877°	8.1 km	2	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.1 earthquake 12 km E of Floriston, California at 22:41 UTC on October 27, 2025. A small number of nearby observers (2) submitted felt reports to the USGS. This was a shallow crustal earthquake, focused at 8.1 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 39.393°, -119.877°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 22:21:11 UTC	4.2mb	164 km E of Beauséjour, Guadeloupe 16.542°, -59.554°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.2 event was detected 164 km E of Beauséjour, Guadeloupe on October 27, 2025, with origin time 22:21 UTC. It arrived roughly 10 hours after a larger magnitude 6.5 mainshock in the same 20 km area, placing it within the typical aftershock window. The hypocenter lay at 10.0 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 16.542°, -59.554°. 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.
2025-10-27 2025-10-27 22:16:03 UTC	4.5mb	164 km E of Beauséjour, Guadeloupe 16.546°, -59.553°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.5 event was detected 164 km E of Beauséjour, Guadeloupe on October 27, 2025, with origin time 22:16 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.5 earthquake that occurred about 10 hours earlier. The hypocenter lay at 10.0 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 16.546°N, -59.553°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.
2025-10-27 2025-10-27 21:32:46 UTC	4.4mb	south of the Fiji Islands -21.042°, 175.497°	600.8 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.4 earthquake south of the Fiji Islands with origin time 21:32 UTC on October 27, 2025. At 600.8 km, this deep-focus earthquake originated far below the brittle crust, deep inside the mantle. Geolocation places the event at -21.042°N, 175.497°E. 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.
2025-10-27 2025-10-27 21:17:00 UTC	2.5mb_lg	4 km E of Riverside, Maryland 39.181°, -76.833°	8.5 km	1,228	-	-	✓ Reviewed	USGS →
This magnitude 2.5 event was detected 4 km E of Riverside, Maryland on October 27, 2025, with origin time 21:17 UTC. More than 1,228 people across the region submitted felt reports to the USGS Did You Feel It? system, indicating the shaking was widely perceived. Of every earthquake currently listed for worldwide seismic activity, this one generated the most felt reports from the public. The hypocenter lay at 8.5 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 39.181°, -76.833°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 20:40:57 UTC	2.3md	39 km NW of Rincón, Puerto Rico 18.580°, -67.525°	11.2 km	-	-	-	✓ Reviewed	USGS →
On October 27, 2025, worldwide seismic activity registered a magnitude 2.3 earthquake 39 km NW of Rincón, Puerto Rico at 20:40 UTC. This was a shallow crustal earthquake, focused at 11.2 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 18.580°, -67.525°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 20:29:11 UTC	4.2mb	9 km SE of Sındırgı, Turkey 39.182°, 28.251°	10.0 km	2	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.2 earthquake 9 km SE of Sındırgı, Turkey came in on October 27, 2025 at 20:29 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.0 earthquake that occurred about 1 hours earlier. A small number of nearby observers (2) submitted felt reports to the USGS. At a depth of 10.0 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 39.182°N, 28.251°E. 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.
2025-10-27 2025-10-27 19:50:34 UTC	2.0ml	61 km S of Whites City, New Mexico 31.624°, -104.333°	6.2 km	-	-	-	✓ Reviewed	USGS →
On October 27, 2025 at 19:50 UTC, a magnitude 2.0 earthquake struck 61 km S of Whites City, New Mexico. The hypocenter lay at 6.2 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 31.624°, -104.333°. 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.
2025-10-27 2025-10-27 19:48:28 UTC	6.0mww	7 km SE of Sındırgı, Turkey 39.194°, 28.242°	8.0 km	193	VIII	yellow	✓ Reviewed	USGS →
A magnitude 6.0 earthquake was recorded 7 km SE of Sındırgı, Turkey on October 27, 2025 at 19:48 UTC. On the Modified Mercalli scale, shaking reached 8.1 — considered violent. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. The USGS PAGER system assigned a yellow alert level for this event, signalling local impact possible. The USGS received 193 felt reports from nearby residents — a notable response for an event of this magnitude. It ranks as the second largest event in the current dataset. At a depth of 8.0 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 39.194°N, 28.242°E. See the M6.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 19:30:03 UTC	2.1md	3 km WSW of Fuig, Puerto Rico 17.981°, -66.951°	11.5 km	-	-	-	✓ Reviewed	USGS →
On October 27, 2025, worldwide seismic activity registered a magnitude 2.1 earthquake 3 km WSW of Fuig, Puerto Rico at 19:30 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 5 hours earlier. At a depth of 11.5 km, the event was shallow crustal. Geolocation places the event at 17.981°N, -66.951°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-27 2025-10-27 19:16:53 UTC	4.3mb	162 km NW of Ternate, Indonesia 1.980°, 126.525°	54.5 km	-	-	-	✓ Reviewed	USGS →
October 27, 2025 brought a magnitude 4.3 earthquake 162 km NW of Ternate, Indonesia, logged at 19:16 UTC. At a depth of 54.5 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 1.980°, 126.525°. 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.
2025-10-27 2025-10-27 18:59:30 UTC	4.3mb	Southwest Indian Ridge -29.437°, 60.718°	10.0 km	-	-	-	✓ Reviewed	USGS →
On October 27, 2025 at 18:59 UTC, a magnitude 4.3 earthquake struck near Southwest Indian Ridge. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. The epicenter is at -29.437°, 60.718°. 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.
2025-10-27 2025-10-27 18:40:06 UTC	4.9mb	168 km E of Beauséjour, Guadeloupe 16.501°, -59.512°	10.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.9 earthquake 168 km E of Beauséjour, Guadeloupe came in on October 27, 2025 at 18:40 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.5 earthquake that occurred about 6 hours earlier. 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. Geolocation places the event at 16.501°N, -59.512°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.
2025-10-27 2025-10-27 18:30:24 UTC	4.2mb	176 km E of Beauséjour, Guadeloupe 16.608°, -59.450°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.2 seismic event took place 176 km E of Beauséjour, Guadeloupe on October 27, 2025 at 18:30 UTC. Coming 6 hours after a magnitude 6.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 16.608°, -59.450°. 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.

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 27, 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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