Earthquakes on September 27, 2025
209
EARTHQUAKES on September 27, 2025
24-hour UTC period · USGS data
LARGEST: M5.5 — 90 km WNW of Sola, Vanuatu
33 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
37
M3.0–3.9
12
M2.0–2.9
30
M1.0–1.9
125
Activity Summary
209
Total earthquakes
~250
Daily average
Normal
Activity level
5
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.5
90 km WNW of Sola, Vanuatu
08:10 UTC · 33.0 km deep
5.1
231 km W of Bandon, Oregon
22:12 UTC · 10.0 km deep
Felt by 13
5.1
69 km NE of Masohi, Indonesia
09:08 UTC · 19.3 km deep
5.1
212 km SE of Severo-Kuril’sk, Russia
07:25 UTC · 10.0 km deep
5.0
23 km WSW of Isangel, Vanuatu
09:49 UTC · 127.7 km deep
4.9
southeast of Easter Island
22:17 UTC · 10.0 km deep
4.9
144 km ESE of San Jose Village, Northern Mariana Islands
13:02 UTC · 10.0 km deep
4.9
74 km WNW of Port-Vila, Vanuatu
07:17 UTC · 10.0 km deep
Felt by 1
Earthquake Map — September 27, 2025
All Earthquakes — September 27, 2025
Showing 30 of 84 (filtered from 209)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2025-09-27 2025-09-27 23:35:28 UTC | 2.1ml | 61 km E of Pedro Bay, Alaska 59.838°, -153.013° | 98.1 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2025 at 23:35 UTC, a magnitude 2.1 earthquake struck 61 km E of Pedro Bay, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 23:30:46 UTC | 4.3mb | 263 km ESE of Onagawa Chō, Japan 37.757°, 144.324° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 263 km ESE of Onagawa Chō, Japan on September 27, 2025 at 23:30 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.8 earthquake that occurred about 10 hours earlier. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 23:30:35 UTC | 2.8ml | 107 km SSE of Sand Point, Alaska 54.450°, -159.827° | 31.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 107 km SSE of Sand Point, Alaska came in on September 27, 2025 at 23:30 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 23:29:02 UTC | 4.5mb | 247 km ESE of Onagawa Chō, Japan 37.741°, 144.127° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 247 km ESE of Onagawa Chō, Japan on September 27, 2025, with origin time 23:29 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.8 earthquake that occurred about 10 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 22:47:21 UTC | 2.0ml | 31 km NW of Toyah, Texas 31.525°, -104.018° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 31 km NW of Toyah, Texas on September 27, 2025 at 22:47 UTC. It arrived roughly 7 hours after a larger magnitude 2.2 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 22:46:06 UTC | 4.4mb | 16 km N of Markaz-e Woluswalī-ye Āchīn, Afghanistan 34.273°, 70.698° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:46 UTC on September 27, 2025, a magnitude 4.4 tremor occurred 16 km N of Markaz-e Woluswalī-ye Āchīn, Afghanistan. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 22:22:37 UTC | 3.4md | 59 km N of Charlotte Amalie, U.S. Virgin Islands 18.881°, -64.944° | 21.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.4 seismic event took place 59 km N of Charlotte Amalie, U.S. Virgin Islands on September 27, 2025 at 22:22 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 22:17:56 UTC | 4.9mb | southeast of Easter Island -41.108°, -91.231° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.9 earthquake southeast of Easter Island at 22:17 UTC on September 27, 2025. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 22:13:03 UTC | 4.4mb | 124 km E of Petropavlovsk-Kamchatsky, Russia 52.921°, 160.460° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 124 km E of Petropavlovsk-Kamchatsky, Russia at 22:13 UTC on September 27, 2025. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 22:12:49 UTC | 5.1mww | 231 km W of Bandon, Oregon 43.520°, -127.205° | 10.0 km | 13 | - | - | ✓ Reviewed | USGS → |
A magnitude 5.1 earthquake was recorded 231 km W of Bandon, Oregon on September 27, 2025 at 22:12 UTC. A tsunami evaluation was automatically initiated given the magnitude and location. The event was offshore. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 21:37:17 UTC | 4.2mb | 44 km NNW of Finschhafen, Papua New Guinea -6.168°, 147.748° | 69.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 44 km NNW of Finschhafen, Papua New Guinea on September 27, 2025, with origin time 21:37 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 21:28:44 UTC | 2.5ml | 2 km S of Salcha, Alaska 64.499°, -146.892° | 5.4 km | 2 | - | - | ✓ Reviewed | USGS → |
On September 27, 2025 at 21:28 UTC, a magnitude 2.5 earthquake struck 2 km S of Salcha, Alaska. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 20:37:15 UTC | 2.3md | 2 km NNE of The Geysers, CA 38.793°, -122.751° | 1.2 km | - | - | - | Auto | USGS → |
At 20:37 UTC on September 27, 2025, a magnitude 2.3 tremor occurred 2 km NNE 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 20:25:01 UTC | 4.6mb | 12 km NNW of Hualin, China 34.923°, 104.673° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2025 at 20:25 UTC, a magnitude 4.6 earthquake struck 12 km NNW of Hualin, China. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 20:08:37 UTC | 2.0ml | 32 km NW of Toyah, Texas 31.532°, -104.015° | 6.5 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2025 brought a magnitude 2.0 earthquake 32 km NW of Toyah, Texas, logged at 20:08 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.2 earthquake that occurred about 4 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 18:39:21 UTC | 4.5mb | Pacific-Antarctic Ridge -56.890°, -142.256° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake near Pacific-Antarctic Ridge came in on September 27, 2025 at 18:39 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 18:22:03 UTC | 2.1ml | 63 km NNW of Yakutat, Alaska 60.073°, -140.181° | 16.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 63 km NNW of Yakutat, Alaska on September 27, 2025 at 18:22 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 18:01:40 UTC | 4.3mb | south of the Fiji Islands -24.202°, 179.950° | 495.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake south of the Fiji Islands with origin time 18:01 UTC on September 27, 2025. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 18:01:15 UTC | 4.5mb | 58 km NNW of Madang, Papua New Guinea -4.706°, 145.657° | 10.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place 58 km NNW of Madang, Papua New Guinea on September 27, 2025 at 18:01 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 17:53:17 UTC | 3.1ml | 92 km WNW of Atka, Alaska 52.486°, -175.476° | 214.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2025 at 17:53 UTC, a magnitude 3.1 earthquake struck 92 km WNW of Atka, Alaska. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 17:33:37 UTC | 4.4mb | 296 km W of Longyearbyen, Svalbard and Jan Mayen 78.974°, 2.718° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected 296 km W of Longyearbyen, Svalbard and Jan Mayen on September 27, 2025, with origin time 17:33 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 17:31:01 UTC | 2.1ml | 61 km W of Karluk, Alaska 57.513°, -155.482° | 70.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 61 km W of Karluk, Alaska with origin time 17:31 UTC on September 27, 2025. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 17:16:33 UTC | 2.1ml | 81 km W of Eagle, Alaska 64.763°, -142.910° | 1.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2025, worldwide seismic activity registered a magnitude 2.1 earthquake 81 km W of Eagle, Alaska at 17:16 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 17:11:57 UTC | 3.2ml | 221 km WNW of Bandon, Oregon 43.577°, -127.062° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2025 brought a magnitude 3.2 earthquake 221 km WNW of Bandon, Oregon, logged at 17:11 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 16:57:15 UTC | 2.1ml | 6 km SSW of Redlands, CA 34.002°, -117.202° | 5.9 km | 2 | - | - | ✓ Reviewed | USGS → |
September 27, 2025 brought a magnitude 2.1 earthquake 6 km SSW of Redlands, CA, logged at 16:57 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 16:05:38 UTC | 4.2mb | 283 km WNW of Longyearbyen, Svalbard and Jan Mayen 79.145°, 3.551° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 283 km WNW of Longyearbyen, Svalbard and Jan Mayen came in on September 27, 2025 at 16:05 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 16:01:05 UTC | 3.4md | 54 km NNW of San Antonio, Puerto Rico 18.933°, -67.338° | 6.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.4 event was detected 54 km NNW of San Antonio, Puerto Rico on September 27, 2025, with origin time 16:01 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 15:47:05 UTC | 2.2ml | 26 km NW of Toyah, Texas 31.488°, -103.985° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 26 km NW of Toyah, Texas came in on September 27, 2025 at 15:47 UTC. In the 72 hours after this event, the USGS recorded 4 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-27 2025-09-27 15:36:11 UTC | 2.0ml | 7 km N of Trout Valley, New Mexico 33.104°, -108.192° | 9.7 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2025 at 15:36 UTC, a magnitude 2.0 earthquake struck 7 km N of Trout Valley, New Mexico. Coming 1 hours after a magnitude 2.9 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. | ||||||||
2025-09-27 2025-09-27 15:07:48 UTC | 2.9ml | 12 km N of Trout Valley, New Mexico 33.144°, -108.168° | 13.3 km | - | - | - | ✓ Reviewed | USGS → |
At 15:07 UTC on September 27, 2025, a magnitude 2.9 tremor occurred 12 km N of Trout Valley, New Mexico. The event was offshore. See the M2.9 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 27, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.