Earthquakes on September 3, 2026
374
EARTHQUAKES on September 3, 2026
24-hour UTC period · USGS data
LARGEST: M6.3 — 84 km SSW of Nikolski, Alaska
35 km deep · 3 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
11
M4.0–4.9
35
M3.0–3.9
40
M2.0–2.9
93
M1.0–1.9
195
Activity Summary
374
Total earthquakes
~250
Daily average
Elevated
Activity level
11
M5.0+ events
Significant Earthquakes (M4.5+)
6.3
84 km SSW of Nikolski, Alaska
11:17 UTC · 35.0 km deep
Felt by 3
5.4
105 km SSW of Nikolski, Alaska
20:21 UTC · 10.0 km deep
5.4
21 km WNW of Jiangyou, China
11:39 UTC · 10.0 km deep
Felt by 6
5.3
108 km SSW of Nikolski, Alaska
18:45 UTC · 10.0 km deep
5.2
100 km SSW of Nikolski, Alaska
13:03 UTC · 10.0 km deep
5.2
97 km SSW of Nikolski, Alaska
11:24 UTC · 45.2 km deep
5.1
273 km SSE of Dunhuang, China
17:04 UTC · 10.0 km deep
5.1
119 km NE of Joshīmath, India
08:16 UTC · 10.0 km deep
Earthquake Map — September 3, 2026
All Earthquakes — September 3, 2026
Showing 30 of 179 (filtered from 374)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-09-03 2026-09-03 23:57:24 UTC | 3.2ml | 125 km S of Nikolski, Alaska 51.826°, -169.149° | 10.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.2 event was detected 125 km S of Nikolski, Alaska on September 3, 2026, with origin time 23:57 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:54:25 UTC | 2.8ml | 90 km SSW of Nikolski, Alaska 52.148°, -169.159° | 10.6 km | - | - | - | ✓ Reviewed | USGS → |
September 3, 2026 brought a magnitude 2.8 earthquake 90 km SSW of Nikolski, Alaska, logged at 23:54 UTC. Coming 4 hours after a magnitude 5.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:41:32 UTC | 2.3md | 1 km SSW of Guánica, Puerto Rico 17.962°, -66.911° | 13.4 km | - | - | - | ✓ Reviewed | USGS → |
September 3, 2026 brought a magnitude 2.3 earthquake 1 km SSW of Guánica, Puerto Rico, logged at 23:41 UTC. Coming 15 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:31:00 UTC | 2.8ml | 111 km SSW of Nikolski, Alaska 51.957°, -169.189° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2026 at 23:31 UTC, a magnitude 2.8 earthquake struck 111 km SSW of Nikolski, Alaska. It arrived roughly 3 hours after a larger magnitude 5.4 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:25:34 UTC | 2.6ml | 92 km SSW of Nikolski, Alaska 52.138°, -169.235° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2026, worldwide seismic activity registered a magnitude 2.6 earthquake 92 km SSW of Nikolski, Alaska at 23:25 UTC. Coming 12 hours after a magnitude 6.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:22:27 UTC | 2.7ml | 80 km SSW of Nikolski, Alaska 52.238°, -169.154° | 22.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 80 km SSW of Nikolski, Alaska on September 3, 2026 at 23:22 UTC. Coming 12 hours after a magnitude 6.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:21:30 UTC | 3.4ml | 57 km W of Anchor Point, Alaska 59.775°, -152.860° | 112.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.4 earthquake 57 km W of Anchor Point, Alaska at 23:21 UTC on September 3, 2026. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:17:08 UTC | 2.2md | 31 km W of Petrolia, CA 40.303°, -124.645° | 18.3 km | - | - | - | ✓ Reviewed | USGS → |
At 23:17 UTC on September 3, 2026, a magnitude 2.2 tremor occurred 31 km W of Petrolia, CA. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:12:40 UTC | 3.0ml | 100 km SSW of Nikolski, Alaska 52.070°, -169.272° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:12 UTC on September 3, 2026, a magnitude 3.0 tremor occurred 100 km SSW of Nikolski, Alaska. Coming 3 hours after a magnitude 5.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:02:00 UTC | 2.5ml | 57 km S of Whites City, New Mexico 31.656°, -104.387° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 57 km S of Whites City, New Mexico came in on September 3, 2026 at 23:02 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 23:01:02 UTC | 2.5ml | 80 km SSW of Nikolski, Alaska 52.334°, -169.516° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 seismic event took place 80 km SSW of Nikolski, Alaska on September 3, 2026 at 23:01 UTC. Coming 12 hours after a magnitude 6.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:54:19 UTC | 3.3ml | 98 km SSW of Nikolski, Alaska 52.091°, -169.292° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2026, worldwide seismic activity registered a magnitude 3.3 earthquake 98 km SSW of Nikolski, Alaska at 22:54 UTC. It arrived roughly 3 hours after a larger magnitude 5.4 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:53:05 UTC | 2.7ml | 115 km SSW of Nikolski, Alaska 51.982°, -169.502° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 115 km SSW of Nikolski, Alaska with origin time 22:53 UTC on September 3, 2026. It arrived roughly 4 hours after a larger magnitude 5.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:42:15 UTC | 3.3ml | 88 km SSW of Nikolski, Alaska 52.174°, -169.242° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:42 UTC on September 3, 2026, a magnitude 3.3 tremor occurred 88 km SSW of Nikolski, Alaska. This event falls inside the aftershock decay of a nearby magnitude 6.3 earthquake that occurred about 11 hours earlier. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:41:30 UTC | 3.0ml | 97 km SSW of Nikolski, Alaska 52.192°, -169.621° | 18.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.0 earthquake 97 km SSW of Nikolski, Alaska at 22:41 UTC on September 3, 2026. It arrived roughly 11 hours after a larger magnitude 6.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:39:47 UTC | 2.8ml | 90 km S of Nikolski, Alaska 52.142°, -169.091° | 8.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 earthquake was recorded 90 km S of Nikolski, Alaska on September 3, 2026 at 22:39 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.4 earthquake that occurred about 2 hours earlier. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:39:02 UTC | 3.4ml | 19 km SE of Pāhala, Hawaii 19.066°, -155.359° | 31.9 km | 4 | II | - | ✓ Reviewed | USGS → |
At 22:39 UTC on September 3, 2026, a magnitude 3.4 tremor occurred 19 km SE of Pāhala, Hawaii. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:36:20 UTC | 2.8ml | 82 km S of Nikolski, Alaska 52.201°, -169.028° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 82 km S of Nikolski, Alaska with origin time 22:36 UTC on September 3, 2026. Coming 10 hours after a magnitude 5.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:35:07 UTC | 2.2ml | 40 km W of Anchor Point, Alaska 59.801°, -152.546° | 88.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 40 km W of Anchor Point, Alaska on September 3, 2026 at 22:35 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 22:00:48 UTC | 2.6ml | 149 km ESE of Nikolski, Alaska 52.495°, -166.772° | 9.6 km | - | - | - | ✓ Reviewed | USGS → |
At 22:00 UTC on September 3, 2026, a magnitude 2.6 tremor occurred 149 km ESE of Nikolski, Alaska. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 21:58:46 UTC | 4.3mb | 39 km ESE of Farkhār, Afghanistan 36.469°, 70.277° | 209.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2026, worldwide seismic activity registered a magnitude 4.3 earthquake 39 km ESE of Farkhār, Afghanistan at 21:58 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 21:21:33 UTC | 3.2md | 8 km WNW of Maricao, Puerto Rico 18.199°, -67.058° | 126.3 km | - | - | - | ✓ Reviewed | USGS → |
September 3, 2026 brought a magnitude 3.2 earthquake 8 km WNW of Maricao, Puerto Rico, logged at 21:21 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 21:18:21 UTC | 4.8mww | 29 km WSW of Salamanca, Chile -31.897°, -71.240° | 81.9 km | 6 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.8 earthquake 29 km WSW of Salamanca, Chile at 21:18 UTC on September 3, 2026. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 21:07:04 UTC | 3.0md | 28 km SSW of Charlotte Amalie, U.S. Virgin Islands 18.093°, -64.984° | 14.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 28 km SSW of Charlotte Amalie, U.S. Virgin Islands on September 3, 2026, with origin time 21:07 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 21:05:15 UTC | 4.9mb | 98 km W of Gorontalo, Indonesia 0.526°, 122.178° | 111.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 earthquake was recorded 98 km W of Gorontalo, Indonesia on September 3, 2026 at 21:05 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 21:00:10 UTC | 4.8mb | 57 km N of Ende, Indonesia -8.321°, 121.666° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 57 km N of Ende, Indonesia on September 3, 2026, with origin time 21:00 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 20:59:03 UTC | 2.1ml | 3 km SSE of Kukuihaele, Hawaii 20.094°, -155.560° | 12.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 3 km SSE of Kukuihaele, Hawaii on September 3, 2026, with origin time 20:59 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 20:56:51 UTC | 2.8ml | 79 km SSW of Nikolski, Alaska 52.252°, -169.207° | 11.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2026, worldwide seismic activity registered a magnitude 2.8 earthquake 79 km SSW of Nikolski, Alaska at 20:56 UTC. It arrived roughly 10 hours after a larger magnitude 6.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 20:53:19 UTC | 2.6ml | 81 km SSW of Nikolski, Alaska 52.239°, -169.203° | 15.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 81 km SSW of Nikolski, Alaska at 20:53 UTC on September 3, 2026. This event falls inside the aftershock decay of a nearby magnitude 6.3 earthquake that occurred about 10 hours earlier. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-03 2026-09-03 20:49:50 UTC | 2.0ml | 22 km ESE of Skwentna, Alaska 61.898°, -151.018° | 71.6 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 22 km ESE of Skwentna, Alaska on September 3, 2026 at 20:49 UTC. See the M2.0 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 3, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.