Earthquakes on September 15, 2026
245
EARTHQUAKES on September 15, 2026
24-hour UTC period · USGS data
LARGEST: M4.8 — 289 km WSW of Tual, Indonesia
92 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
0
M4.0–4.9
38
M3.0–3.9
10
M2.0–2.9
54
M1.0–1.9
143
Activity Summary
245
Total earthquakes
~250
Daily average
Normal
Activity level
0
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
4.8
289 km WSW of Tual, Indonesia
06:07 UTC · 91.7 km deep
4.8
22 km ESE of Socorro, Philippines
02:03 UTC · 10.0 km deep
4.7
157 km N of Caluula, Somalia
23:46 UTC · 10.0 km deep
4.7
106 km NE of Hihifo, Tonga
22:05 UTC · 10.0 km deep
4.7
94 km NE of Yonakuni, Japan
21:00 UTC · 8.8 km deep
4.7
116 km S of Panguna, Papua New Guinea
11:34 UTC · 10.0 km deep
4.7
105 km S of Panguna, Papua New Guinea
10:20 UTC · 10.0 km deep
4.6
West Chile Rise
16:56 UTC · 10.0 km deep
Earthquake Map — September 15, 2026
All Earthquakes — September 15, 2026
Showing 30 of 102 (filtered from 245)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-09-15 2026-09-15 23:50:50 UTC | 2.1ml | 28 km NNW of Susitna, Alaska 61.766°, -150.769° | 63.9 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 28 km NNW of Susitna, Alaska on September 15, 2026 at 23:50 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 23:50:03 UTC | 2.3ml | 71 km ESE of Adak, Alaska 51.715°, -175.624° | 15.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 71 km ESE of Adak, Alaska on September 15, 2026 at 23:50 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 23:49:33 UTC | 2.7ml | 90 km SSW of False Pass, Alaska 54.062°, -163.706° | 32.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.7 earthquake 90 km SSW of False Pass, Alaska at 23:49 UTC on September 15, 2026. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 23:46:59 UTC | 4.7mww | 157 km N of Caluula, Somalia 13.391°, 50.784° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.7 earthquake 157 km N of Caluula, Somalia with origin time 23:46 UTC on September 15, 2026. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 23:45:06 UTC | 4.5mb | 12 km WNW of Palora, Ecuador -1.640°, -78.060° | 155.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 12 km WNW of Palora, Ecuador on September 15, 2026 at 23:45 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 23:22:55 UTC | 2.5ml | 179 km WSW of Adak, Alaska 51.257°, -179.030° | 30.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 179 km WSW of Adak, Alaska on September 15, 2026, with origin time 23:22 UTC. It arrived roughly 7 hours after a larger magnitude 3.4 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 22:43:11 UTC | 4.0mb | 57 km NW of Jumla, Nepal 29.635°, 81.759° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.0 earthquake 57 km NW of Jumla, Nepal at 22:43 UTC on September 15, 2026. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 22:11:22 UTC | 2.1ml | 125 km E of McCarthy, Alaska 61.324°, -140.587° | 4.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 125 km E of McCarthy, Alaska with origin time 22:11 UTC on September 15, 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. | ||||||||
2026-09-15 2026-09-15 22:05:25 UTC | 4.7mb | 106 km NE of Hihifo, Tonga -15.216°, -173.166° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 15, 2026, worldwide seismic activity registered a magnitude 4.7 earthquake 106 km NE of Hihifo, Tonga at 22:05 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 21:55:24 UTC | 2.0ml | 45 km SW of Adak, Alaska 51.582°, -177.095° | 69.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 45 km SW of Adak, Alaska came in on September 15, 2026 at 21:55 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 21:49:29 UTC | 3.5ml | Rat Islands, Aleutian Islands, Alaska 51.485°, 178.951° | 57.3 km | - | II | - | ✓ Reviewed | USGS → |
A magnitude 3.5 seismic event took place near Rat Islands, Aleutian Islands, Alaska on September 15, 2026 at 21:49 UTC. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 21:47:31 UTC | 2.3ml | 28 km WSW of Yampa, Colorado 40.072°, -107.225° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
September 15, 2026 brought a magnitude 2.3 earthquake 28 km WSW of Yampa, Colorado, logged at 21:47 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 21:46:51 UTC | 2.3ml | 28 km WSW of Yampa, Colorado 40.073°, -107.225° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 15, 2026 at 21:46 UTC, a magnitude 2.3 earthquake struck 28 km WSW of Yampa, Colorado. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 21:10:12 UTC | 2.7ml | 2 km NNW of Las Nutrias, New Mexico 34.495°, -106.783° | 10.0 km | 5 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 2 km NNW of Las Nutrias, New Mexico on September 15, 2026, with origin time 21:10 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 21:09:38 UTC | 4.2mb | 11 km NW of Izumi, Japan 32.162°, 130.289° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 11 km NW of Izumi, Japan came in on September 15, 2026 at 21:09 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 21:00:34 UTC | 4.7mww | 94 km NE of Yonakuni, Japan 25.084°, 123.641° | 8.8 km | - | - | - | ✓ Reviewed | USGS → |
At 21:00 UTC on September 15, 2026, a magnitude 4.7 tremor occurred 94 km NE of Yonakuni, Japan. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 20:58:18 UTC | 2.0ml | 58 km W of Akhiok, Alaska 56.969°, -155.136° | 23.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 58 km W of Akhiok, Alaska on September 15, 2026 at 20:58 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 20:50:29 UTC | 4.3mb | Fiji region -19.243°, -177.734° | 582.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded in the Fiji region on September 15, 2026 at 20:50 UTC. 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. | ||||||||
2026-09-15 2026-09-15 20:33:50 UTC | 4.4mb | 30 km SSW of Pangai, Tonga -20.079°, -174.426° | 131.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 30 km SSW of Pangai, Tonga came in on September 15, 2026 at 20:33 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 20:17:15 UTC | 2.5ml | 67 km S of False Pass, Alaska 54.250°, -163.476° | 11.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 67 km S of False Pass, Alaska came in on September 15, 2026 at 20:17 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 20:06:11 UTC | 4.1mb | 55 km WNW of Jumla, Nepal 29.442°, 81.640° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake 55 km WNW of Jumla, Nepal with origin time 20:06 UTC on September 15, 2026. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 20:05:17 UTC | 2.3ml | 104 km WSW of Adak, Alaska 51.425°, -177.964° | 36.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 104 km WSW of Adak, Alaska on September 15, 2026 at 20:05 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 20:04:19 UTC | 2.9ml | 52 km SSW of Unalaska, Alaska 53.445°, -166.867° | 70.0 km | - | - | - | ✓ Reviewed | USGS → |
September 15, 2026 brought a magnitude 2.9 earthquake 52 km SSW of Unalaska, Alaska, logged at 20:04 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 20:00:31 UTC | 2.3md | 3 km W of Dublin, CA 37.706°, -121.970° | 10.0 km | 3 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 3 km W of Dublin, CA came in on September 15, 2026 at 20:00 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 19:44:41 UTC | 2.2ml | 36 km S of Ugashik, Alaska 57.189°, -157.286° | 3.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 15, 2026, worldwide seismic activity registered a magnitude 2.2 earthquake 36 km S of Ugashik, Alaska at 19:44 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. | ||||||||
2026-09-15 2026-09-15 19:28:14 UTC | 2.2ml | 3 km SSE of Big Lake, Alaska 61.491°, -149.930° | 38.0 km | 1 | - | - | ✓ Reviewed | USGS → |
At 19:28 UTC on September 15, 2026, a magnitude 2.2 tremor occurred 3 km SSE of Big Lake, Alaska. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 19:24:00 UTC | 2.6ml | 16 km NE of Milford, Utah 38.522°, -112.904° | 3.0 km | - | III | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 16 km NE of Milford, Utah on September 15, 2026 at 19:24 UTC. 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 M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 19:21:08 UTC | 2.0ml | 19 km WNW of Volcano, Hawaii 19.524°, -155.403° | 11.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 19 km WNW of Volcano, Hawaii on September 15, 2026, with origin time 19:21 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 19:07:39 UTC | 4.1mb | 22 km WSW of Brisas Barra de Suchiate, Mexico 14.464°, -92.420° | 84.5 km | - | - | - | ✓ Reviewed | USGS → |
On September 15, 2026, worldwide seismic activity registered a magnitude 4.1 earthquake 22 km WSW of Brisas Barra de Suchiate, Mexico at 19:07 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-15 2026-09-15 18:27:08 UTC | 2.7ml | 98 km SE of Akutan, Alaska 53.510°, -164.705° | 33.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.7 earthquake 98 km SE of Akutan, Alaska came in on September 15, 2026 at 18:27 UTC. The event was offshore. See the M2.7 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 15, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.