Earthquakes on August 31, 2026
239
EARTHQUAKES on August 31, 2026
24-hour UTC period · USGS data
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
1
M4.0–4.9
21
M3.0–3.9
5
M2.0–2.9
34
M1.0–1.9
178
Activity Summary
239
Total earthquakes
~250
Daily average
Normal
Activity level
1
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.5
44 km NNE of Ruteng, Indonesia
08:03 UTC · 10.0 km deep
4.9
13 km SSE of Union, Philippines
04:04 UTC · 83.9 km deep
Felt by 2
4.8
176 km SE of Gizo, Solomon Islands
20:00 UTC · 10.0 km deep
4.7
3 km NW of Yanacancha, Peru
11:53 UTC · 10.0 km deep
Felt by 1
4.6
South Sandwich Islands region
21:45 UTC · 92.8 km deep
4.6
112 km SSW of Chirilagua, El Salvador
18:56 UTC · 35.0 km deep
4.6
28 km ESE of Kuril’sk, Russia
09:19 UTC · 147.8 km deep
4.6
southeast Indian Ridge
00:29 UTC · 10.0 km deep
Earthquake Map — August 31, 2026
All Earthquakes — August 31, 2026
Showing 30 of 61 (filtered from 239)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-08-31 2026-08-31 23:35:57 UTC | 2.2ml | 45 km NNE of Spencer, Idaho 44.727°, -111.944° | 10.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 45 km NNE of Spencer, Idaho with origin time 23:35 UTC on August 31, 2026. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 23:16:53 UTC | 4.1mb | 100 km WNW of False Pass, Alaska 55.050°, -164.945° | 179.3 km | - | I | - | ✓ Reviewed | USGS → |
On August 31, 2026 at 23:16 UTC, a magnitude 4.1 earthquake struck 100 km WNW of False Pass, Alaska. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 23:05:19 UTC | 4.4mb | Komandorskiye Ostrova, Russia region 54.071°, 168.812° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 31, 2026 at 23:05 UTC, a magnitude 4.4 earthquake struck in the Komandorskiye Ostrova, Russia region. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 22:01:38 UTC | 4.3mb | 23 km NNE of Jalālābād, Afghanistan 34.602°, 70.587° | 48.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 23 km NNE of Jalālābād, Afghanistan at 22:01 UTC on August 31, 2026. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 21:45:57 UTC | 4.6mb | South Sandwich Islands region -55.961°, -27.623° | 92.8 km | - | - | - | ✓ Reviewed | USGS → |
At 21:45 UTC on August 31, 2026, a magnitude 4.6 tremor occurred in the South Sandwich Islands region. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 21:38:46 UTC | 2.9ml | 233 km W of Ferndale, California 40.682°, -127.021° | 16.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 233 km W of Ferndale, California on August 31, 2026 at 21:38 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 21:32:14 UTC | 4.4mb | 155 km NW of Sabang, Indonesia 6.924°, 94.361° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 155 km NW of Sabang, Indonesia on August 31, 2026 at 21:32 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 21:30:16 UTC | 4.3mb | 51 km SW of Taltal, Chile -25.756°, -70.821° | 27.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 51 km SW of Taltal, Chile on August 31, 2026, with origin time 21:30 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 21:28:43 UTC | 2.2ml | 36 km NNW of Toyah, Texas 31.607°, -103.972° | 8.7 km | - | - | - | ✓ Reviewed | USGS → |
On August 31, 2026, worldwide seismic activity registered a magnitude 2.2 earthquake 36 km NNW of Toyah, Texas at 21:28 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 12 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 20:37:30 UTC | 3.0md | 31 km WSW of Stella, Puerto Rico 18.178°, -67.504° | 8.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.0 earthquake 31 km WSW of Stella, Puerto Rico at 20:37 UTC on August 31, 2026. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 20:30:00 UTC | 2.0ml | 48 km W of Mentone, Texas 31.733°, -104.112° | 7.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 48 km W of Mentone, Texas on August 31, 2026 at 20:30 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 11 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 20:00:29 UTC | 4.8mb | 176 km SE of Gizo, Solomon Islands -9.015°, 158.156° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.8 earthquake 176 km SE of Gizo, Solomon Islands with origin time 20:00 UTC on August 31, 2026. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 19:36:56 UTC | 4.2mb | 36 km WSW of Ashkāsham, Afghanistan 36.533°, 71.176° | 103.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place 36 km WSW of Ashkāsham, Afghanistan on August 31, 2026 at 19:36 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 18:59:08 UTC | 2.4ml | 37 km WNW of Four Mile Road, Alaska 64.780°, -149.783° | 11.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 37 km WNW of Four Mile Road, Alaska on August 31, 2026 at 18:59 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 18:56:28 UTC | 4.6mb | 112 km SSW of Chirilagua, El Salvador 12.244°, -88.443° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake 112 km SSW of Chirilagua, El Salvador at 18:56 UTC on August 31, 2026. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 18:05:27 UTC | 4.4mb | West Chile Rise -36.888°, -95.830° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake near West Chile Rise with origin time 18:05 UTC on August 31, 2026. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 18:00:41 UTC | 2.6md | 101 km W of Petrolia, CA 40.450°, -125.467° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 101 km W of Petrolia, CA on August 31, 2026, with origin time 18:00 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 17:44:50 UTC | 2.1ml | 57 km NW of Toyah, Texas 31.661°, -104.245° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
On August 31, 2026 at 17:44 UTC, a magnitude 2.1 earthquake struck 57 km NW of Toyah, Texas. Coming 8 hours after a magnitude 3.2 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. | ||||||||
2026-08-31 2026-08-31 17:15:42 UTC | 4.4mb | northern East Pacific Rise 9.861°, -104.293° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 31, 2026, worldwide seismic activity registered a magnitude 4.4 earthquake near northern East Pacific Rise at 17:15 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 15:58:02 UTC | 2.1ml | 16 km NE of Milford, Utah 38.520°, -112.900° | 0.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 16 km NE of Milford, Utah on August 31, 2026 at 15:58 UTC. It arrived roughly 11 hours after a larger magnitude 2.1 mainshock in the same 20 km area, placing it within the typical aftershock window. 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. | ||||||||
2026-08-31 2026-08-31 15:17:46 UTC | 2.1ml | 20 km SE of Pāhala, Hawaii 19.060°, -155.355° | 31.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 20 km SE of Pāhala, Hawaii on August 31, 2026 at 15:17 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 15:03:40 UTC | 2.3ml | 69 km SW of Nanwalek, Alaska 58.893°, -152.726° | 68.8 km | - | - | - | ✓ Reviewed | USGS → |
August 31, 2026 brought a magnitude 2.3 earthquake 69 km SW of Nanwalek, Alaska, logged at 15:03 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 14:25:51 UTC | 4.2mb | 31 km NNE of Komodo, Indonesia -8.328°, 119.614° | 187.8 km | - | - | - | ✓ Reviewed | USGS → |
August 31, 2026 brought a magnitude 4.2 earthquake 31 km NNE of Komodo, Indonesia, logged at 14:25 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 14:15:02 UTC | 2.3ml | 14 km WNW of Point MacKenzie, Alaska 61.424°, -150.213° | 8.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On August 31, 2026 at 14:15 UTC, a magnitude 2.3 earthquake struck 14 km WNW of Point MacKenzie, Alaska. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 14:07:43 UTC | 4.1mb | 20 km SSE of Andaray, Peru -15.970°, -72.802° | 110.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 20 km SSE of Andaray, Peru on August 31, 2026 at 14:07 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 13:11:05 UTC | 2.0ml | 7 km SW of Volcano, Hawaii 19.385°, -155.279° | 1.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 7 km SW of Volcano, Hawaii came in on August 31, 2026 at 13:11 UTC. 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. | ||||||||
2026-08-31 2026-08-31 12:01:06 UTC | 2.5md | 4 km SSW of Añasco, Puerto Rico 18.246°, -67.165° | 15.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 4 km SSW of Añasco, Puerto Rico came in on August 31, 2026 at 12:01 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 11:53:26 UTC | 4.7mb | 3 km NW of Yanacancha, Peru -12.182°, -75.410° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On August 31, 2026, worldwide seismic activity registered a magnitude 4.7 earthquake 3 km NW of Yanacancha, Peru at 11:53 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 11:04:24 UTC | 2.9ml | 22 km SSW of La Quinta, CA 33.484°, -116.401° | 9.9 km | 15 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.9 earthquake 22 km SSW of La Quinta, CA came in on August 31, 2026 at 11:04 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 M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-31 2026-08-31 10:22:25 UTC | 2.1ml | 64 km SE of Kokhanok, Alaska 59.036°, -153.964° | 112.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 64 km SE of Kokhanok, Alaska with origin time 10:22 UTC on August 31, 2026. The event was offshore. See the M2.1 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 August 31, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.