Earthquakes on September 28, 2026
272
EARTHQUAKES on September 28, 2026
24-hour UTC period · USGS data
LARGEST: M5.4 — north of Svalbard
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
27
M3.0–3.9
16
M2.0–2.9
79
M1.0–1.9
143
Activity Summary
272
Total earthquakes
~250
Daily average
Normal
Activity level
7
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.4
north of Svalbard
13:22 UTC · 10.0 km deep
5.4
231 km WSW of Port McNeill, Canada
04:41 UTC · 10.0 km deep
Felt by 3
5.3
60 km NE of Tadine, New Caledonia
03:25 UTC · 10.0 km deep
5.2
190 km WSW of Port McNeill, Canada
09:13 UTC · 10.0 km deep
5.2
67 km ENE of Tadine, New Caledonia
05:45 UTC · 10.0 km deep
5.1
78 km ENE of Tadine, New Caledonia
05:28 UTC · 10.0 km deep
5.1
South Sandwich Islands region
03:43 UTC · 35.0 km deep
4.9
2 km SW of Sakai, Japan
19:45 UTC · 71.0 km deep
Felt by 69
Earthquake Map — September 28, 2026
All Earthquakes — September 28, 2026
Showing 30 of 129 (filtered from 272)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-09-28 2026-09-28 23:31:27 UTC | 2.0ml | 6 km NNW of Dutch Harbor, Alaska 53.944°, -166.592° | 14.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 6 km NNW of Dutch Harbor, Alaska came in on September 28, 2026 at 23:31 UTC. It arrived roughly 1 hours after a larger magnitude 2.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 23:29:53 UTC | 4.4mb | 85 km NE of Ruteng, Indonesia -7.994°, 120.927° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected 85 km NE of Ruteng, Indonesia on September 28, 2026, with origin time 23:29 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 23:19:34 UTC | 2.3md | 5 km SW of Guánica, Puerto Rico 17.933°, -66.943° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 5 km SW of Guánica, Puerto Rico on September 28, 2026 at 23:19 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 23:14:52 UTC | 2.9ml | Rat Islands, Aleutian Islands, Alaska 52.289°, 178.367° | 155.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 earthquake was recorded near Rat Islands, Aleutian Islands, Alaska on September 28, 2026 at 23:14 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:54:45 UTC | 3.0mb_lg | 2 km SSW of Bogue, Kansas 39.341°, -99.705° | 5.0 km | 8 | - | - | ✓ Reviewed | USGS → |
At 22:54 UTC on September 28, 2026, a magnitude 3.0 tremor occurred 2 km SSW of Bogue, Kansas. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:53:10 UTC | 2.5ml | 80 km SSW of Nikolski, Alaska 52.265°, -169.273° | 20.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 80 km SSW of Nikolski, Alaska on September 28, 2026 at 22:53 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:50:25 UTC | 2.5mb_lg | 9 km S of Bogue, Kansas 39.281°, -99.698° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 9 km S of Bogue, Kansas with origin time 22:50 UTC on September 28, 2026. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:47:48 UTC | 2.3ml | 12 km ESE of Pearsall, Texas 28.851°, -98.976° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
At 22:47 UTC on September 28, 2026, a magnitude 2.3 tremor occurred 12 km ESE of Pearsall, Texas. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:39:34 UTC | 2.0ml | 67 km E of Adak, Alaska 51.886°, -175.660° | 79.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 67 km E of Adak, Alaska on September 28, 2026 at 22:39 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:29:31 UTC | 3.0ml | Rat Islands, Aleutian Islands, Alaska 51.396°, 178.735° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.0 earthquake near Rat Islands, Aleutian Islands, Alaska at 22:29 UTC on September 28, 2026. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:25:57 UTC | 4.4mb | south of the Fiji Islands -25.206°, 179.901° | 487.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake south of the Fiji Islands came in on September 28, 2026 at 22:25 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:17:19 UTC | 2.1ml | 7 km NNW of Dutch Harbor, Alaska 53.950°, -166.595° | 14.7 km | - | - | - | ✓ Reviewed | USGS → |
On September 28, 2026 at 22:17 UTC, a magnitude 2.1 earthquake struck 7 km NNW of Dutch Harbor, Alaska. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 22:17:08 UTC | 2.3ml | 11 km SE of Pāhala, Hawaii 19.131°, -155.405° | 32.2 km | - | - | - | ✓ Reviewed | USGS → |
On September 28, 2026, worldwide seismic activity registered a magnitude 2.3 earthquake 11 km SE of Pāhala, Hawaii at 22:17 UTC. Coming 11 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 21:58:23 UTC | 2.4ml | 58 km S of Whites City, New Mexico 31.651°, -104.454° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 58 km S of Whites City, New Mexico came in on September 28, 2026 at 21:58 UTC. Coming 21 hours after a magnitude 2.5 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. | ||||||||
2026-09-28 2026-09-28 21:58:14 UTC | 2.1ml | 57 km S of Whites City, New Mexico 31.655°, -104.432° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 57 km S of Whites City, New Mexico on September 28, 2026 at 21:58 UTC. Coming 21 hours after a magnitude 2.5 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. | ||||||||
2026-09-28 2026-09-28 21:22:37 UTC | 2.7ml | 22 km SSW of Susitna, Alaska 61.346°, -150.635° | 57.1 km | 1 | - | - | ✓ Reviewed | USGS → |
September 28, 2026 brought a magnitude 2.7 earthquake 22 km SSW of Susitna, Alaska, logged at 21:22 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 20:20:43 UTC | 2.1md | 10 km WNW of Cobb, CA 38.849°, -122.837° | 0.6 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.1 earthquake 10 km WNW of Cobb, CA at 20:20 UTC on September 28, 2026. 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. | ||||||||
2026-09-28 2026-09-28 20:16:28 UTC | 2.1md | 10 km W of Boonville, CA 39.012°, -123.484° | 2.0 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.1 earthquake 10 km W of Boonville, CA with origin time 20:16 UTC on September 28, 2026. 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. | ||||||||
2026-09-28 2026-09-28 20:13:51 UTC | 3.0ml | 112 km SSW of False Pass, Alaska 53.912°, -164.048° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 112 km SSW of False Pass, Alaska on September 28, 2026, with origin time 20:13 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 19:59:16 UTC | 2.1ml | 20 km SSW of Sunrise, Alaska 60.717°, -149.592° | 25.6 km | 2 | - | - | ✓ Reviewed | USGS → |
On September 28, 2026, worldwide seismic activity registered a magnitude 2.1 earthquake 20 km SSW of Sunrise, Alaska at 19:59 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 19:48:09 UTC | 2.1ml | 68 km SE of Adak, Alaska 51.443°, -175.936° | 37.3 km | - | - | - | ✓ Reviewed | USGS → |
At 19:48 UTC on September 28, 2026, a magnitude 2.1 tremor occurred 68 km SE of Adak, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 19:45:07 UTC | 4.9mww | 2 km SW of Sakai, Japan 36.081°, 139.778° | 71.0 km | 69 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.9 earthquake 2 km SW of Sakai, Japan came in on September 28, 2026 at 19:45 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 19:27:07 UTC | 2.3ml | 58 km S of Whites City, New Mexico 31.654°, -104.437° | 6.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 58 km S of Whites City, New Mexico at 19:27 UTC on September 28, 2026. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 18 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 19:19:54 UTC | 2.9md | 45 km N of Charlotte Amalie, U.S. Virgin Islands 18.748°, -64.940° | 23.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 28, 2026 at 19:19 UTC, a magnitude 2.9 earthquake struck 45 km N of Charlotte Amalie, U.S. Virgin Islands. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 19:17:03 UTC | 2.2ml | 76 km SSW of Adak, Alaska 51.232°, -177.025° | 27.6 km | - | - | - | ✓ Reviewed | USGS → |
September 28, 2026 brought a magnitude 2.2 earthquake 76 km SSW of Adak, Alaska, logged at 19:17 UTC. Coming 1 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 19:10:40 UTC | 2.9ml | 83 km ESE of Adak, Alaska 51.503°, -175.577° | 38.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.9 earthquake 83 km ESE of Adak, Alaska with origin time 19:10 UTC on September 28, 2026. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 19:02:41 UTC | 2.1ml | 58 km S of Whites City, New Mexico 31.650°, -104.460° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 58 km S of Whites City, New Mexico at 19:02 UTC on September 28, 2026. It arrived roughly 18 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 18:55:12 UTC | 2.0ml | 7 km NE of Potsdam, New York 44.712°, -74.911° | 5.0 km | 3 | - | - | ✓ Reviewed | USGS → |
September 28, 2026 brought a magnitude 2.0 earthquake 7 km NE of Potsdam, New York, logged at 18:55 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-28 2026-09-28 18:26:44 UTC | 2.0ml | 101 km N of Yakutat, Alaska 60.458°, -139.643° | 1.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 28, 2026 at 18:26 UTC, a magnitude 2.0 earthquake struck 101 km N of Yakutat, Alaska. 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. | ||||||||
2026-09-28 2026-09-28 18:23:20 UTC | 2.4ml | 69 km SSW of Adak, Alaska 51.276°, -176.899° | 27.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 69 km SSW of Adak, Alaska on September 28, 2026 at 18:23 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 28, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.