Earthquakes on September 4, 2025
232
EARTHQUAKES on September 4, 2025
24-hour UTC period · USGS data
182 km deep · 17 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
9
M4.0–4.9
42
M3.0–3.9
19
M2.0–2.9
39
M1.0–1.9
123
Activity Summary
232
Total earthquakes
~250
Daily average
Normal
Activity level
9
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.9
85 km W of San Antonio de los Cobres, Argentina
04:10 UTC · 182.0 km deep
Felt by 17
5.6
40 km WSW of Asadābād, Afghanistan
16:56 UTC · 16.5 km deep
Felt by 84
5.2
167 km ESE of Petropavlovsk-Kamchatsky, Russia
22:38 UTC · 10.0 km deep
5.2
92 km SSW of Nikolski, Alaska
19:54 UTC · 35.0 km deep
Felt by 1
5.2
94 km SSW of Nikolski, Alaska
19:01 UTC · 35.0 km deep
05.2
139 km ESE of Kokopo, Papua New Guinea
09:38 UTC · 60.3 km deep
5.2
254 km NE of Fais, Micronesia
04:37 UTC · 10.0 km deep
5.1
49 km E of Isangel, Vanuatu
11:10 UTC · 34.3 km deep
Earthquake Map — September 4, 2025
All Earthquakes — September 4, 2025
Showing 30 of 109 (filtered from 232)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2025-09-04 2025-09-04 23:21:11 UTC | 4.5mb | 171 km NNE of Colonia, Micronesia 10.992°, 138.592° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 171 km NNE of Colonia, Micronesia came in on September 4, 2025 at 23:21 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 23:09:16 UTC | 4.1mb | 223 km SSW of Severo-Kuril’sk, Russia 48.943°, 154.556° | 84.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake 223 km SSW of Severo-Kuril’sk, Russia came in on September 4, 2025 at 23:09 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 22:43:46 UTC | 2.2ml | 28 km SE of Levelock, Alaska 58.963°, -156.464° | 214.0 km | - | - | - | Auto | USGS → |
On September 4, 2025 at 22:43 UTC, a magnitude 2.2 earthquake struck 28 km SE of Levelock, Alaska. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 22:39:58 UTC | 2.0ml | 56 km NE of Valmy, Nevada 41.180°, -116.686° | 10.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 56 km NE of Valmy, Nevada on September 4, 2025, with origin time 22:39 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 6 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 22:38:37 UTC | 5.2mww | 167 km ESE of Petropavlovsk-Kamchatsky, Russia 52.300°, 160.756° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.2 earthquake 167 km ESE of Petropavlovsk-Kamchatsky, Russia with origin time 22:38 UTC on September 4, 2025. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 22:35:28 UTC | 2.0md | 20 km NW of Alder Springs, CA 39.799°, -122.862° | -0.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 20 km NW of Alder Springs, CA with origin time 22:35 UTC on September 4, 2025. 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. | ||||||||
2025-09-04 2025-09-04 21:46:40 UTC | 4.9mb | 36 km NNE of Jalālābād, Afghanistan 34.702°, 70.667° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
September 4, 2025 brought a magnitude 4.9 earthquake 36 km NNE of Jalālābād, Afghanistan, logged at 21:46 UTC. It arrived roughly 5 hours after a larger magnitude 5.6 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 21:45:15 UTC | 3.1ml | 14 km SE of Wright, Wyoming 43.654°, -105.372° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 14 km SE of Wright, Wyoming on September 4, 2025, with origin time 21:45 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 21:32:09 UTC | 2.1ml | 62 km NE of Valmy, Nevada 41.243°, -116.679° | 4.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 62 km NE of Valmy, Nevada at 21:32 UTC on September 4, 2025. Coming 5 hours after a magnitude 3.4 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 21:29:02 UTC | 2.7ml | 56 km NE of Valmy, Nevada 41.184°, -116.694° | 9.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 56 km NE of Valmy, Nevada on September 4, 2025, with origin time 21:29 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 5 hours earlier. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 21:20:07 UTC | 4.2mb | western Xizang 33.531°, 81.860° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2025, worldwide seismic activity registered a magnitude 4.2 earthquake near western Xizang at 21:20 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 21:12:51 UTC | 2.5md | 4 km E of Hormigueros, Puerto Rico 18.139°, -67.088° | 20.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 4 km E of Hormigueros, Puerto Rico with origin time 21:12 UTC on September 4, 2025. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 21:11:37 UTC | 2.2md | 5 km SW of Volcano, Hawaii 19.408°, -155.265° | 5.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 5 km SW of Volcano, Hawaii on September 4, 2025 at 21:11 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 20:47:50 UTC | 2.7ml | 106 km E of Chignik, Alaska 56.425°, -156.699° | 17.8 km | - | - | - | Auto | USGS → |
At 20:47 UTC on September 4, 2025, a magnitude 2.7 tremor occurred 106 km E of Chignik, Alaska. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 20:13:08 UTC | 3.5mb | 84 km SSW of Nikolski, Alaska 52.245°, -169.358° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.5 earthquake 84 km SSW of Nikolski, Alaska came in on September 4, 2025 at 20:13 UTC. It arrived roughly 1 hours after a larger magnitude 5.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 20:03:03 UTC | 4.9mb | 88 km SSW of Corinto, Nicaragua 11.732°, -87.459° | 39.7 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2025 at 20:03 UTC, a magnitude 4.9 earthquake struck 88 km SSW of Corinto, Nicaragua. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 19:54:26 UTC | 5.2mww | 92 km SSW of Nikolski, Alaska 52.186°, -169.430° | 35.0 km | 1 | II | - | ✓ Reviewed | USGS → |
On September 4, 2025, worldwide seismic activity registered a magnitude 5.2 earthquake 92 km SSW of Nikolski, Alaska at 19:54 UTC. A tsunami evaluation was automatically initiated given the magnitude and location. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 19:52:21 UTC | 2.4md | 17 km WNW of Rancho Tehama Reserve, CA 40.087°, -122.577° | 15.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2025, worldwide seismic activity registered a magnitude 2.4 earthquake 17 km WNW of Rancho Tehama Reserve, CA at 19:52 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 19:48:03 UTC | 4.5mb | 158 km ESE of Biak, Indonesia -1.815°, 137.355° | 27.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place 158 km ESE of Biak, Indonesia on September 4, 2025 at 19:48 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 19:23:28 UTC | 2.1ml | 52 km NE of Valmy, Nevada 41.153°, -116.726° | 8.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 52 km NE of Valmy, Nevada on September 4, 2025 at 19:23 UTC. Coming 3 hours after a magnitude 3.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 19:15:48 UTC | 2.2md | 4 km E of Hormigueros, Puerto Rico 18.141°, -67.088° | 21.4 km | - | - | - | ✓ Reviewed | USGS → |
September 4, 2025 brought a magnitude 2.2 earthquake 4 km E of Hormigueros, Puerto Rico, logged at 19:15 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 19:09:44 UTC | 3.4md | 44 km SSW of Boca de Yuma, Dominican Republic 18.000°, -68.755° | 81.3 km | - | - | - | ✓ Reviewed | USGS → |
September 4, 2025 brought a magnitude 3.4 earthquake 44 km SSW of Boca de Yuma, Dominican Republic, logged at 19:09 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 19:01:14 UTC | 5.2mww | 94 km SSW of Nikolski, Alaska 52.187°, -169.495° | 35.0 km | - | II | - | ✓ Reviewed | USGS → |
At 19:01 UTC on September 4, 2025, a magnitude 5.2 tremor occurred 94 km SSW of Nikolski, Alaska. A tsunami evaluation was automatically initiated given the magnitude and location. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 18:55:02 UTC | 3.7mb | 91 km SE of King Cove, Alaska 54.401°, -161.466° | 35.0 km | - | I | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.7 earthquake 91 km SE of King Cove, Alaska at 18:55 UTC on September 4, 2025. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 18 hours earlier. The event was offshore. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 18:28:22 UTC | 4.4mb | 24 km NE of Jalālābād, Afghanistan 34.574°, 70.653° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2025 at 18:28 UTC, a magnitude 4.4 earthquake struck 24 km NE of Jalālābād, Afghanistan. It arrived roughly 2 hours after a larger magnitude 5.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 18:05:38 UTC | 3.3md | 79 km W of Pole Ojea, Puerto Rico 17.972°, -67.932° | 52.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2025, worldwide seismic activity registered a magnitude 3.3 earthquake 79 km W of Pole Ojea, Puerto Rico at 18:05 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 18:00:33 UTC | 4.1mb | 131 km E of Petropavlovsk-Kamchatsky, Russia 52.909°, 160.562° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 131 km E of Petropavlovsk-Kamchatsky, Russia on September 4, 2025 at 18:00 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 17:52:41 UTC | 2.2md | 5 km WNW of Cobb, CA 38.836°, -122.782° | 1.7 km | - | - | - | Auto | USGS → |
At 17:52 UTC on September 4, 2025, a magnitude 2.2 tremor occurred 5 km WNW of Cobb, CA. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 17:39:05 UTC | 2.2ml | 14 km NE of Coachella, CA 33.775°, -116.077° | 2.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2025, worldwide seismic activity registered a magnitude 2.2 earthquake 14 km NE of Coachella, CA at 17:39 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-04 2025-09-04 17:21:38 UTC | 3.0ml | 57 km NE of Valmy, Nevada 41.188°, -116.682° | 5.7 km | 1 | III | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.0 earthquake 57 km NE of Valmy, Nevada came in on September 4, 2025 at 17:21 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 1 hours earlier. The event was offshore. See the M3.0 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 4, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.