Earthquakes on September 23, 2026
293
EARTHQUAKES on September 23, 2026
24-hour UTC period · USGS data
LARGEST: M5.7 — 197 km NW of Hihifo, Tonga
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
36
M3.0–3.9
14
M2.0–2.9
75
M1.0–1.9
163
Activity Summary
293
Total earthquakes
~250
Daily average
Normal
Activity level
5
M5.0+ events
Significant Earthquakes (M4.5+)
5.7
197 km NW of Hihifo, Tonga
14:41 UTC · 10.0 km deep
5.3
47 km NNE of Chilecito, Argentina
09:21 UTC · 121.4 km deep
Felt by 4
5.0
138 km NNE of Ba, Fiji
17:46 UTC · 10.0 km deep
5.0
Mariana Islands region
13:01 UTC · 307.0 km deep
5.0
Scotia Sea
08:41 UTC · 10.0 km deep
04.9
193 km SE of Mata-Utu, Wallis and Futuna
17:20 UTC · 10.0 km deep
4.9
southern East Pacific Rise
07:36 UTC · 10.0 km deep
4.6
10 km NW of Chaparral, Colombia
20:09 UTC · 62.6 km deep
Felt by 1
Earthquake Map — September 23, 2026
All Earthquakes — September 23, 2026
Showing 30 of 130 (filtered from 293)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-09-23 2026-09-23 23:48:52 UTC | 2.4ml | 89 km SSE of King Cove, Alaska 54.373°, -161.601° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2026, worldwide seismic activity registered a magnitude 2.4 earthquake 89 km SSE of King Cove, Alaska at 23:48 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 23:16:35 UTC | 2.0md | 3 km W of Fuig, Puerto Rico 17.987°, -66.947° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 3 km W of Fuig, Puerto Rico with origin time 23:16 UTC on September 23, 2026. Coming 17 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 22:31:20 UTC | 4.5mb | 50 km ESE of Finschhafen, Papua New Guinea -6.654°, 148.290° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2026, worldwide seismic activity registered a magnitude 4.5 earthquake 50 km ESE of Finschhafen, Papua New Guinea at 22:31 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 22:05:45 UTC | 2.0ml | 23 km WSW of Aleneva, Alaska 57.971°, -153.278° | 52.2 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2026, worldwide seismic activity registered a magnitude 2.0 earthquake 23 km WSW of Aleneva, Alaska at 22:05 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 21:54:46 UTC | 2.4ml | 56 km S of Whites City, New Mexico 31.665°, -104.417° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:54 UTC on September 23, 2026, a magnitude 2.4 tremor occurred 56 km S of Whites City, New Mexico. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 21:48:37 UTC | 2.1ml | 74 km SW of Akhiok, Alaska 56.551°, -155.154° | 11.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 74 km SW of Akhiok, Alaska on September 23, 2026 at 21:48 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 21:35:24 UTC | 4.4mb | 37 km NNE of Kuji, Japan 40.484°, 141.985° | 68.2 km | - | - | - | ✓ Reviewed | USGS → |
September 23, 2026 brought a magnitude 4.4 earthquake 37 km NNE of Kuji, Japan, logged at 21:35 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 21:29:28 UTC | 4.1mb | 3 km SE of El Chocolate, Mexico 16.910°, -95.073° | 92.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected 3 km SE of El Chocolate, Mexico on September 23, 2026, with origin time 21:29 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 21:19:42 UTC | 2.1ml | 34 km SSE of Sand Point, Alaska 55.040°, -160.343° | 27.1 km | - | - | - | ✓ Reviewed | USGS → |
September 23, 2026 brought a magnitude 2.1 earthquake 34 km SSE of Sand Point, Alaska, logged at 21:19 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 21:13:06 UTC | 2.1ml | 46 km SE of Denali National Park, Alaska 63.285°, -150.976° | 2.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2026 at 21:13 UTC, a magnitude 2.1 earthquake struck 46 km SE of Denali National Park, Alaska. 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. | ||||||||
2026-09-23 2026-09-23 20:55:51 UTC | 2.3md | 4 km SW of Guánica, Puerto Rico 17.945°, -66.934° | 7.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 4 km SW of Guánica, Puerto Rico with origin time 20:55 UTC on September 23, 2026. Coming 15 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 20:51:03 UTC | 2.1md | 2 km NNW of Fuig, Puerto Rico 18.008°, -66.928° | 7.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 2 km NNW of Fuig, Puerto Rico on September 23, 2026 at 20:51 UTC. It arrived roughly 15 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 20:44:36 UTC | 3.0ml | 17 km WSW of Johannesburg, CA 35.310°, -117.805° | 7.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.0 earthquake 17 km WSW of Johannesburg, CA at 20:44 UTC on September 23, 2026. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 6 hours earlier. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 20:30:40 UTC | 4.4mb | 41 km ENE of Labuan Lombok, Indonesia -8.320°, 116.999° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2026 at 20:30 UTC, a magnitude 4.4 earthquake struck 41 km ENE of Labuan Lombok, Indonesia. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 20:16:45 UTC | 2.0ml | 13 km WNW of Willow, Alaska 61.797°, -150.263° | 59.4 km | 1 | - | - | ✓ Reviewed | USGS → |
At 20:16 UTC on September 23, 2026, a magnitude 2.0 tremor occurred 13 km WNW of Willow, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 20:09:43 UTC | 4.6mb | 10 km NW of Chaparral, Colombia 3.802°, -75.543° | 62.6 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.6 earthquake 10 km NW of Chaparral, Colombia came in on September 23, 2026 at 20:09 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 19:59:30 UTC | 2.5ml | 17 km WSW of Johannesburg, CA 35.311°, -117.802° | 6.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 17 km WSW of Johannesburg, CA on September 23, 2026 at 19:59 UTC. It arrived roughly 5 hours after a larger magnitude 3.2 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. | ||||||||
2026-09-23 2026-09-23 19:34:01 UTC | 2.1ml | 15 km WNW of Ivanof Bay, Alaska 55.939°, -159.718° | 8.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 15 km WNW of Ivanof Bay, Alaska with origin time 19:34 UTC on September 23, 2026. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 19:23:22 UTC | 2.5ml | 68 km SE of Unalaska, Alaska 53.411°, -165.844° | 20.4 km | - | - | - | ✓ Reviewed | USGS → |
At 19:23 UTC on September 23, 2026, a magnitude 2.5 tremor occurred 68 km SE of Unalaska, Alaska. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 19:14:34 UTC | 2.2ml | 56 km ENE of Pedro Bay, Alaska 60.005°, -153.190° | 134.3 km | - | - | - | ✓ Reviewed | USGS → |
September 23, 2026 brought a magnitude 2.2 earthquake 56 km ENE of Pedro Bay, Alaska, logged at 19:14 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 18:47:55 UTC | 2.9ml | 283 km W of Adak, Alaska 51.617°, 179.282° | 73.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.9 event was detected 283 km W of Adak, Alaska on September 23, 2026, with origin time 18:47 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 18:33:25 UTC | 2.0ml | 16 km E of Pearsall, Texas 28.869°, -98.929° | 7.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 16 km E of Pearsall, Texas at 18:33 UTC on September 23, 2026. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 18:28:56 UTC | 2.7md | 24 km SW of Toms Place, CA 37.419°, -118.889° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:28 UTC on September 23, 2026, a magnitude 2.7 tremor occurred 24 km SW of Toms Place, CA. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 18:16:31 UTC | 2.3md | 2 km NNE of Guayanilla, Puerto Rico 18.041°, -66.785° | 14.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 2 km NNE of Guayanilla, Puerto Rico on September 23, 2026 at 18:16 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 18:14:48 UTC | 3.3ml | 98 km SSW of Nikolski, Alaska 52.132°, -169.453° | 34.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.3 earthquake 98 km SSW of Nikolski, Alaska with origin time 18:14 UTC on September 23, 2026. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 17:46:06 UTC | 5.0mww | 138 km NNE of Ba, Fiji -16.332°, 178.028° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake 138 km NNE of Ba, Fiji with origin time 17:46 UTC on September 23, 2026. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 17:40:08 UTC | 4.2mb | 74 km NW of Sola, Vanuatu -13.431°, 167.030° | 184.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 74 km NW of Sola, Vanuatu on September 23, 2026 at 17:40 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 17:38:48 UTC | 2.8ml | 57 km W of Anchor Point, Alaska 59.881°, -152.838° | 101.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 57 km W of Anchor Point, Alaska came in on September 23, 2026 at 17:38 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 17:20:32 UTC | 4.9mb | 193 km SE of Mata-Utu, Wallis and Futuna -14.650°, -175.058° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.9 earthquake 193 km SE of Mata-Utu, Wallis and Futuna at 17:20 UTC on September 23, 2026. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-23 2026-09-23 17:06:07 UTC | 2.4ml | 104 km SE of King Cove, Alaska 54.293°, -161.385° | 6.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 104 km SE of King Cove, Alaska at 17:06 UTC on September 23, 2026. The event was offshore. 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 23, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.