Earthquakes on September 17, 2025: 227 Worldwide, Largest M5.4

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2025-09-17 2025-09-17 23:21:16 UTC	2.4ml	45 km NW of Toyah, Texas 31.566°, -104.176°	8.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.4 event was detected 45 km NW of Toyah, Texas on September 17, 2025, with origin time 23:21 UTC. Coming 1 hours after a magnitude 3.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The hypocenter lay at 8.0 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 31.566°, -104.176°. 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.
2025-09-17 2025-09-17 22:51:49 UTC	2.2md	21 km W of Petrolia, CA 40.297°, -124.527°	9.6 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.2 event was detected 21 km W of Petrolia, CA on September 17, 2025, with origin time 22:51 UTC. It arrived roughly 3 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event originated approximately 9.6 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 40.297°, -124.527°. 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.
2025-09-17 2025-09-17 22:51:38 UTC	4.0mb	98 km ESE of Sarangani, Philippines 5.172°, 126.326°	26.6 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.0 earthquake 98 km ESE of Sarangani, Philippines at 22:51 UTC on September 17, 2025. This was a shallow crustal earthquake, focused at 26.6 km depth. Coordinates: 5.172°, 126.326°. 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.
2025-09-17 2025-09-17 22:48:03 UTC	4.3mb	63 km E of Grenville, Grenada 12.027°, -61.046°	77.2 km	-	-	-	✓ Reviewed	USGS →
On September 17, 2025 at 22:48 UTC, a magnitude 4.3 earthquake struck 63 km E of Grenville, Grenada. The hypocenter lay at 77.2 km, placing this in the intermediate depth category. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Coordinates: 12.027°, -61.046°. 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.
2025-09-17 2025-09-17 22:20:18 UTC	2.4ml	48 km W of Mentone, Texas 31.733°, -104.113°	7.9 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.4 earthquake 48 km W of Mentone, Texas came in on September 17, 2025 at 22:20 UTC. It arrived roughly 1 hours after a larger magnitude 3.6 mainshock in the same 20 km area, placing it within the typical aftershock window. At a depth of 7.9 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 31.733°, -104.113°. 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.
2025-09-17 2025-09-17 22:08:39 UTC	4.5mb	175 km S of Severo-Kuril’sk, Russia 49.100°, 156.215°	44.8 km	-	-	-	✓ Reviewed	USGS →
On September 17, 2025 at 22:08 UTC, a magnitude 4.5 earthquake struck 175 km S of Severo-Kuril’sk, Russia. The event originated approximately 44.8 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 49.100°N, 156.215°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.
2025-09-17 2025-09-17 21:56:54 UTC	3.6ml	48 km W of Mentone, Texas 31.733°, -104.108°	7.9 km	-	IV	-	✓ Reviewed	USGS →
September 17, 2025 brought a magnitude 3.6 earthquake 48 km W of Mentone, Texas, logged at 21:56 UTC. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. Maximum shaking intensity peaked at MMI 4.7 (moderate). This was a shallow crustal earthquake, focused at 7.9 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 31.733°, -104.108°. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-09-17 2025-09-17 21:10:38 UTC	2.8ml	10 km SSE of Kapaau, Hawaii 20.141°, -155.777°	22.6 km	2	-	-	✓ Reviewed	USGS →
September 17, 2025 brought a magnitude 2.8 earthquake 10 km SSE of Kapaau, Hawaii, logged at 21:10 UTC. A small number of nearby observers (2) submitted felt reports to the USGS. At a depth of 22.6 km, the event was shallow crustal. Geolocation places the event at 20.141°N, -155.777°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-09-17 2025-09-17 21:06:37 UTC	4.2mb	85 km WSW of Singkil, Indonesia 2.081°, 97.049°	10.0 km	-	-	-	✓ Reviewed	USGS →
September 17, 2025 brought a magnitude 4.2 earthquake 85 km WSW of Singkil, Indonesia, logged at 21:06 UTC. At a depth of 10.0 km, the event was shallow crustal. Coordinates: 2.081°, 97.049°. 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.
2025-09-17 2025-09-17 20:57:55 UTC	2.6ml	25 km ESE of Wright, Wyoming 43.659°, -105.207°	0.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.6 earthquake 25 km ESE of Wright, Wyoming with origin time 20:57 UTC on September 17, 2025. 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. Geolocation places the event at 43.659°N, -105.207°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-09-17 2025-09-17 20:57:47 UTC	5.4mww	66 km SE of Petropavlovsk-Kamchatsky, Russia 52.632°, 159.302°	54.2 km	1	IV	green	✓ Reviewed	USGS →
On September 17, 2025 at 20:57 UTC, a magnitude 5.4 earthquake struck 66 km SE of Petropavlovsk-Kamchatsky, Russia. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on September 17, 2025. Maximum shaking intensity peaked at MMI 4.1 (moderate). A small number of nearby observers (1) submitted felt reports to the USGS. The hypocenter lay at 54.2 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 52.632°, 159.302°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-09-17 2025-09-17 20:04:53 UTC	2.4md	31 km W of Petrolia, CA 40.283°, -124.645°	15.3 km	-	-	-	✓ Reviewed	USGS →
September 17, 2025 brought a magnitude 2.4 earthquake 31 km W of Petrolia, CA, logged at 20:04 UTC. This was a shallow crustal earthquake, focused at 15.3 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 40.283°, -124.645°. 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.
2025-09-17 2025-09-17 19:29:34 UTC	2.7ml	39 km WNW of Skwentna, Alaska 62.163°, -152.062°	108.1 km	-	-	-	Auto	USGS →
On September 17, 2025 at 19:29 UTC, a magnitude 2.7 earthquake struck 39 km WNW of Skwentna, Alaska. The event originated approximately 108.1 km below the surface, classifying it as intermediate depth. Coordinates: 62.163°, -152.062°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-09-17 2025-09-17 19:21:48 UTC	4.3mb	Pulau Pulau Tanimbar, Indonesia -7.162°, 130.047°	68.7 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.3 earthquake was recorded near Pulau Pulau Tanimbar, Indonesia on September 17, 2025 at 19:21 UTC. At a depth of 68.7 km, the event was shallow crustal. The epicenter is at -7.162°, 130.047°. 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.
2025-09-17 2025-09-17 19:10:19 UTC	2.0ml	30 km NW of Stanley, Idaho 44.421°, -115.191°	6.8 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.0 earthquake was recorded 30 km NW of Stanley, Idaho on September 17, 2025 at 19:10 UTC. This was a shallow crustal earthquake, focused at 6.8 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 44.421°, -115.191°. 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.
2025-09-17 2025-09-17 19:09:12 UTC	4.4mb	80 km WSW of Jiquilillo, Nicaragua 12.344°, -88.068°	65.0 km	-	-	-	✓ Reviewed	USGS →
On September 17, 2025, worldwide seismic activity registered a magnitude 4.4 earthquake 80 km WSW of Jiquilillo, Nicaragua at 19:09 UTC. At a depth of 65.0 km, the event was shallow crustal. Geolocation places the event at 12.344°N, -88.068°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.
2025-09-17 2025-09-17 19:03:59 UTC	2.0md	6 km S of Green Forest, Arkansas 36.277°, -93.444°	0.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.0 earthquake 6 km S of Green Forest, Arkansas with origin time 19:03 UTC on September 17, 2025. 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. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 36.277°, -93.444°. 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.
2025-09-17 2025-09-17 18:38:13 UTC	4.3mb	125 km E of Petropavlovsk-Kamchatsky, Russia 52.903°, 160.477°	43.1 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.3 earthquake 125 km E of Petropavlovsk-Kamchatsky, Russia with origin time 18:38 UTC on September 17, 2025. The event originated approximately 43.1 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 52.903°N, 160.477°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.
2025-09-17 2025-09-17 18:31:14 UTC	2.7ml	105 km S of McCarthy, Alaska 60.485°, -142.976°	6.9 km	-	-	-	Auto	USGS →
A magnitude 2.7 earthquake was recorded 105 km S of McCarthy, Alaska on September 17, 2025 at 18:31 UTC. This was a shallow crustal earthquake, focused at 6.9 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 60.485°, -142.976°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-09-17 2025-09-17 18:12:01 UTC	4.4mb	6 km ENE of Cateel, Philippines 7.805°, 126.514°	93.4 km	-	-	-	✓ Reviewed	USGS →
At 18:12 UTC on September 17, 2025, a magnitude 4.4 tremor occurred 6 km ENE of Cateel, Philippines. The event originated approximately 93.4 km below the surface, classifying it as intermediate depth. Coordinates: 7.805°, 126.514°. 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.
2025-09-17 2025-09-17 18:01:34 UTC	2.9ml	52 km NE of Valmy, Nevada 41.180°, -116.768°	4.9 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.9 event was detected 52 km NE of Valmy, Nevada on September 17, 2025, with origin time 18:01 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.7 earthquake that occurred about 3 hours earlier. At a depth of just 4.9 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. Geolocation places the event at 41.180°N, -116.768°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-09-17 2025-09-17 17:28:43 UTC	2.5ml	46 km S of Old Harbor, Alaska 56.785°, -153.209°	114.3 km	-	-	-	Auto	USGS →
At 17:28 UTC on September 17, 2025, a magnitude 2.5 tremor occurred 46 km S of Old Harbor, Alaska. The event originated approximately 114.3 km below the surface, classifying it as intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. The epicenter is at 56.785°, -153.209°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-09-17 2025-09-17 16:45:05 UTC	4.5mb	155 km SE of Atlasovo, Russia 54.504°, 161.145°	49.8 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.5 earthquake was recorded 155 km SE of Atlasovo, Russia on September 17, 2025 at 16:45 UTC. This was a shallow crustal earthquake, focused at 49.8 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 54.504°, 161.145°. 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.
2025-09-17 2025-09-17 16:35:04 UTC	4.4mb	42 km ESE of Ozernovskiy, Russia 51.325°, 157.053°	114.7 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.4 earthquake 42 km ESE of Ozernovskiy, Russia at 16:35 UTC on September 17, 2025. This was a intermediate depth earthquake, focused at 114.7 km depth. The epicenter is at 51.325°, 157.053°. 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.
2025-09-17 2025-09-17 16:18:38 UTC	4.2mb	207 km SSE of Vilyuchinsk, Russia 51.206°, 159.540°	10.0 km	-	-	-	✓ Reviewed	USGS →
On September 17, 2025 at 16:18 UTC, a magnitude 4.2 earthquake struck 207 km SSE of Vilyuchinsk, Russia. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. The epicenter is at 51.206°, 159.540°. 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.
2025-09-17 2025-09-17 16:12:23 UTC	2.0md	12 km WNW of Covelo, CA 39.849°, -123.365°	5.5 km	-	-	-	✓ Reviewed	USGS →
On September 17, 2025 at 16:12 UTC, a magnitude 2.0 earthquake struck 12 km WNW of Covelo, CA. The event originated approximately 5.5 km below the surface, classifying it as shallow crustal. Geolocation places the event at 39.849°N, -123.365°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.
2025-09-17 2025-09-17 16:03:28 UTC	4.5mb	South Sandwich Islands region -56.423°, -26.700°	76.2 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.5 earthquake in the South Sandwich Islands region with origin time 16:03 UTC on September 17, 2025. The hypocenter lay at 76.2 km, placing this in the intermediate depth category. The epicenter is at -56.423°, -26.700°. 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.
2025-09-17 2025-09-17 15:52:50 UTC	4.3mb	245 km ENE of Lospalos, Timor Leste -7.743°, 129.087°	82.6 km	-	-	-	✓ Reviewed	USGS →
On September 17, 2025, worldwide seismic activity registered a magnitude 4.3 earthquake 245 km ENE of Lospalos, Timor Leste at 15:52 UTC. This was a intermediate depth earthquake, focused at 82.6 km depth. Coordinates: -7.743°, 129.087°. 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.
2025-09-17 2025-09-17 15:31:11 UTC	4.2mb	82 km W of Kandrian, Papua New Guinea -6.264°, 148.800°	53.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.2 earthquake was recorded 82 km W of Kandrian, Papua New Guinea on September 17, 2025 at 15:31 UTC. This was a shallow crustal earthquake, focused at 53.6 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at -6.264°N, 148.800°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.
2025-09-17 2025-09-17 14:57:37 UTC	3.7mw	52 km NE of Valmy, Nevada 41.173°, -116.751°	7.1 km	4	III	-	✓ Reviewed	USGS →
A magnitude 3.7 seismic event took place 52 km NE of Valmy, Nevada on September 17, 2025 at 14:57 UTC. Peak ground motion corresponded to MMI 3.7, classified as light shaking. A small number of nearby observers (4) submitted felt reports to the USGS. The event originated approximately 7.1 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 41.173°, -116.751°. See the M3.7 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 September 17, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.

Today's earthquakes Browse archive

September 16, 2025 September 18, 2025