Earthquakes on September 1, 2025
255
EARTHQUAKES on September 1, 2025
24-hour UTC period · USGS data
12 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
45
M3.0–3.9
26
M2.0–2.9
66
M1.0–1.9
116
Activity Summary
255
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.6
133 km SE of Old Harbor, Alaska
11:02 UTC · 12.0 km deep
5.0
29 km SW of Kandrian, Papua New Guinea
08:58 UTC · 33.0 km deep
Felt by 1
4.9
160 km SSE of Vilyuchinsk, Russia
11:58 UTC · 31.6 km deep
4.9
128 km SE of Old Harbor, Alaska
11:45 UTC · 10.5 km deep
4.8
8 km S of San José del Cabo, Mexico
21:38 UTC · 10.0 km deep
Felt by 51
4.8
68 km W of San Antonio de los Cobres, Argentina
07:38 UTC · 177.0 km deep
4.8
179 km SSE of Vilyuchinsk, Russia
03:59 UTC · 35.0 km deep
4.7
134 km SSE of Old Harbor, Alaska
11:07 UTC · 11.6 km deep
Earthquake Map — September 1, 2025
All Earthquakes — September 1, 2025
Showing 30 of 139 (filtered from 255)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2025-09-01 2025-09-01 23:53:05 UTC | 2.0ml | 91 km S of Sand Point, Alaska 54.514°, -160.356° | 21.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 91 km S of Sand Point, Alaska came in on September 1, 2025 at 23:53 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 10 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 23:51:56 UTC | 4.1mb | south of the Fiji Islands -23.741°, -179.380° | 395.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake south of the Fiji Islands with origin time 23:51 UTC on September 1, 2025. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 23:33:14 UTC | 3.2ml | 63 km N of Petersville, Alaska 63.060°, -150.936° | 131.8 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 1, 2025 at 23:33 UTC, a magnitude 3.2 earthquake struck 63 km N of Petersville, Alaska. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 23:32:32 UTC | 2.4ml | 24 km NW of Stanley, Idaho 44.350°, -115.188° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 24 km NW of Stanley, Idaho came in on September 1, 2025 at 23:32 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 23:04:57 UTC | 2.7ml | 161 km SSE of Nikolski, Alaska 51.548°, -168.202° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 161 km SSE of Nikolski, Alaska on September 1, 2025 at 23:04 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 22:43:41 UTC | 2.4ml | 105 km SE of Old Harbor, Alaska 56.433°, -152.285° | 11.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 105 km SE of Old Harbor, Alaska on September 1, 2025 at 22:43 UTC. Coming 3 hours after a magnitude 4.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 22:40:44 UTC | 3.0ml | 126 km SSE of Old Harbor, Alaska 56.266°, -152.149° | 9.7 km | - | - | - | ✓ Reviewed | USGS → |
On September 1, 2025 at 22:40 UTC, a magnitude 3.0 earthquake struck 126 km SSE of Old Harbor, Alaska. This event falls inside the aftershock decay of a nearby magnitude 5.6 earthquake that occurred about 12 hours earlier. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 22:31:14 UTC | 3.2ml | 14 km NNE of Meadow Lakes, Alaska 61.751°, -149.526° | 54.7 km | 40 | II | - | ✓ Reviewed | USGS → |
A magnitude 3.2 earthquake was recorded 14 km NNE of Meadow Lakes, Alaska on September 1, 2025 at 22:31 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 22:10:49 UTC | 3.4md | 105 km NNE of Cruz Bay, U.S. Virgin Islands 19.229°, -64.446° | 20.6 km | - | - | - | ✓ Reviewed | USGS → |
At 22:10 UTC on September 1, 2025, a magnitude 3.4 tremor occurred 105 km NNE of Cruz Bay, U.S. Virgin Islands. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 21:51:46 UTC | 2.0ml | 94 km SSE of Sand Point, Alaska 54.552°, -159.920° | 22.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 94 km SSE of Sand Point, Alaska on September 1, 2025 at 21:51 UTC. Coming 2 hours after a magnitude 2.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 21:38:20 UTC | 4.8mww | 8 km S of San José del Cabo, Mexico 22.978°, -109.698° | 10.0 km | 51 | - | - | ✓ Reviewed | USGS → |
At 21:38 UTC on September 1, 2025, a magnitude 4.8 tremor occurred 8 km S of San José del Cabo, Mexico. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 21:35:18 UTC | 4.5mb | 96 km WSW of Ternate, Indonesia 0.495°, 126.568° | 52.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place 96 km WSW of Ternate, Indonesia on September 1, 2025 at 21:35 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 21:27:46 UTC | 4.3mb | 110 km NW of Tobelo, Indonesia 2.355°, 127.240° | 104.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 110 km NW of Tobelo, Indonesia on September 1, 2025 at 21:27 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 21:26:07 UTC | 2.3ml | 83 km ENE of Port Alsworth, Alaska 60.496°, -152.929° | 144.2 km | - | - | - | ✓ Reviewed | USGS → |
At 21:26 UTC on September 1, 2025, a magnitude 2.3 tremor occurred 83 km ENE of Port Alsworth, Alaska. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 21:23:33 UTC | 2.1ml | 15 km NE of Milford, Utah 38.505°, -112.902° | 2.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 15 km NE of Milford, Utah on September 1, 2025 at 21:23 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. | ||||||||
2025-09-01 2025-09-01 21:14:05 UTC | 3.7mb | 111 km S of Atka, Alaska 51.204°, -174.000° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.7 earthquake was recorded 111 km S of Atka, Alaska on September 1, 2025 at 21:14 UTC. The event was offshore. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 21:13:58 UTC | 2.3md | 12 km SSW of Tres Pinos, CA 36.682°, -121.350° | 5.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 12 km SSW of Tres Pinos, CA came in on September 1, 2025 at 21:13 UTC. Coming 1 hours after a magnitude 3.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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. | ||||||||
2025-09-01 2025-09-01 21:00:46 UTC | 2.1ml | 91 km SSE of Sand Point, Alaska 54.585°, -159.917° | 23.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 91 km SSE of Sand Point, Alaska with origin time 21:00 UTC on September 1, 2025. Coming 1 hours after a magnitude 2.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 20:58:28 UTC | 2.2ml | 48 km SSE of Whites City, New Mexico 31.765°, -104.210° | 6.6 km | - | - | - | ✓ Reviewed | USGS → |
September 1, 2025 brought a magnitude 2.2 earthquake 48 km SSE of Whites City, New Mexico, logged at 20:58 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 1 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 20:54:15 UTC | 2.5ml | 48 km SSE of Whites City, New Mexico 31.760°, -104.207° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
At 20:54 UTC on September 1, 2025, a magnitude 2.5 tremor occurred 48 km SSE of Whites City, New Mexico. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 20:53:18 UTC | 2.1md | 5 km WNW of Cobb, CA 38.833°, -122.785° | 2.1 km | - | - | - | Auto | USGS → |
September 1, 2025 brought a magnitude 2.1 earthquake 5 km WNW of Cobb, CA, logged at 20:53 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. | ||||||||
2025-09-01 2025-09-01 20:41:36 UTC | 2.0ml | 44 km S of Old Harbor, Alaska 56.812°, -153.193° | 25.5 km | - | - | - | ✓ Reviewed | USGS → |
September 1, 2025 brought a magnitude 2.0 earthquake 44 km S of Old Harbor, Alaska, logged at 20:41 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 20:26:58 UTC | 2.3ml | 25 km E of Hughes, Alaska 66.045°, -153.696° | 4.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 25 km E of Hughes, Alaska at 20:26 UTC on September 1, 2025. 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. | ||||||||
2025-09-01 2025-09-01 20:26:38 UTC | 3.7mw | 11 km S of Tres Pinos, CA 36.690°, -121.331° | 4.7 km | 41 | IV | - | ✓ Reviewed | USGS → |
On September 1, 2025 at 20:26 UTC, a magnitude 3.7 earthquake struck 11 km S of Tres Pinos, CA. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 20:09:50 UTC | 4.2mb | 8 km WSW of Sındırgı, Turkey 39.218°, 28.086° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place 8 km WSW of Sındırgı, Turkey on September 1, 2025 at 20:09 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 20:03:37 UTC | 2.0ml | 68 km S of Shungnak, Alaska 66.273°, -157.208° | 1.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 1, 2025 at 20:03 UTC, a magnitude 2.0 earthquake struck 68 km S of Shungnak, Alaska. This event falls inside the aftershock decay of a nearby magnitude 2.2 earthquake that occurred about 4 hours earlier. 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. | ||||||||
2025-09-01 2025-09-01 19:58:50 UTC | 4.3mb | 62 km S of Panguna, Papua New Guinea -6.878°, 155.438° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
September 1, 2025 brought a magnitude 4.3 earthquake 62 km S of Panguna, Papua New Guinea, logged at 19:58 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 19:57:57 UTC | 2.5ml | 1 km S of Mentone, CA 34.059°, -117.135° | 11.5 km | 6 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 1 km S of Mentone, CA at 19:57 UTC on September 1, 2025. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 19:48:22 UTC | 2.0ml | 47 km SSW of Ivanof Bay, Alaska 55.517°, -159.794° | 62.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 47 km SSW of Ivanof Bay, Alaska on September 1, 2025 at 19:48 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-01 2025-09-01 19:43:58 UTC | 2.4ml | 146 km SSE of Nikolski, Alaska 51.848°, -167.649° | 29.5 km | - | - | - | ✓ Reviewed | USGS → |
September 1, 2025 brought a magnitude 2.4 earthquake 146 km SSE of Nikolski, Alaska, logged at 19:43 UTC. 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 September 1, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.