Earthquakes on August 15, 2026
252
EARTHQUAKES on August 15, 2026
24-hour UTC period · USGS data
173 km deep · 44 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
16
M4.0–4.9
35
M3.0–3.9
14
M2.0–2.9
68
M1.0–1.9
119
Activity Summary
252
Total earthquakes
~250
Daily average
Normal
Activity level
16
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.9
15 km NNW of Pematangsiantar, Indonesia
10:54 UTC · 172.5 km deep
Felt by 44
5.7
132 km NNE of Palu, Indonesia
16:25 UTC · 72.0 km deep
Felt by 3
5.5
Volcano Islands, Japan region
19:32 UTC · 40.0 km deep
5.4
19 km NE of Colonia, Micronesia
22:52 UTC · 10.0 km deep
Felt by 8
5.4
41 km SSW of Angoram, Papua New Guinea
11:10 UTC · 120.2 km deep
Felt by 1
5.4
38 km SSE of Severo-Kuril’sk, Russia
00:43 UTC · 79.0 km deep
5.3
Balleny Islands region
00:40 UTC · 10.0 km deep
5.2
78 km NW of Ende, Indonesia
12:14 UTC · 10.0 km deep
Earthquake Map — August 15, 2026
All Earthquakes — August 15, 2026
Showing 30 of 133 (filtered from 252)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
3 days ago 2026-08-15 23:56:55 UTC | 2.7ml | 170 km S of Atka, Alaska 50.681°, -173.847° | 20.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.7 earthquake 170 km S of Atka, Alaska at 23:56 UTC on August 15, 2026. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 23:24:41 UTC | 2.2ml | 12 km ESE of Pearsall, Texas 28.843°, -98.976° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 12 km ESE of Pearsall, Texas at 23:24 UTC on August 15, 2026. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 23:12:54 UTC | 5.0mb | 80 km N of Ruteng, Indonesia -7.889°, 120.516° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2026, worldwide seismic activity registered a magnitude 5.0 earthquake 80 km N of Ruteng, Indonesia at 23:12 UTC. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 22:54:20 UTC | 3.4ml | 239 km ESE of Attu Station, Alaska 51.839°, 176.285° | 20.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.4 earthquake 239 km ESE of Attu Station, Alaska came in on August 15, 2026 at 22:54 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 22:52:55 UTC | 5.4mww | 19 km NE of Colonia, Micronesia 9.657°, 138.224° | 10.0 km | 8 | V | green | ✓ Reviewed | USGS → |
On August 15, 2026, worldwide seismic activity registered a magnitude 5.4 earthquake 19 km NE of Colonia, Micronesia at 22:52 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. The event was offshore. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 22:45:24 UTC | 4.4mb | 83 km SSW of Puerto San José, Guatemala 13.189°, -90.984° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2026 at 22:45 UTC, a magnitude 4.4 earthquake struck 83 km SSW of Puerto San José, Guatemala. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 22:41:30 UTC | 3.4ml | 23 km E of Point Possession, Alaska 60.964°, -150.272° | 49.0 km | 6 | II | - | ✓ Reviewed | USGS → |
A magnitude 3.4 seismic event took place 23 km E of Point Possession, Alaska on August 15, 2026 at 22:41 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 22:32:05 UTC | 3.7ml | 11 km SSW of Volcano, Hawaii 19.342°, -155.275° | 30.6 km | 66 | III | - | ✓ Reviewed | USGS → |
A magnitude 3.7 earthquake was recorded 11 km SSW of Volcano, Hawaii on August 15, 2026 at 22:32 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 22:10:03 UTC | 4.4mb | 74 km ESE of Sarangani, Philippines 5.173°, 126.093° | 93.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 74 km ESE of Sarangani, Philippines on August 15, 2026 at 22:10 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 21:24:33 UTC | 2.5ml | 98 km SSW of Unalaska, Alaska 53.012°, -166.899° | 22.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 98 km SSW of Unalaska, Alaska came in on August 15, 2026 at 21:24 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 21:08:32 UTC | 4.7mb | 86 km N of Ruteng, Indonesia -7.828°, 120.511° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded 86 km N of Ruteng, Indonesia on August 15, 2026 at 21:08 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 20:41:56 UTC | 2.1md | 5 km NNW of The Geysers, CA 38.818°, -122.790° | 2.5 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.1 earthquake 5 km NNW of The Geysers, CA came in on August 15, 2026 at 20:41 UTC. 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. | ||||||||
3 days ago 2026-08-15 20:29:44 UTC | 4.5mb | 63 km N of Ruteng, Indonesia -8.035°, 120.493° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2026, worldwide seismic activity registered a magnitude 4.5 earthquake 63 km N of Ruteng, Indonesia at 20:29 UTC. It arrived roughly 19 hours after a larger magnitude 4.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 20:26:45 UTC | 2.2ml | 51 km E of Denali National Park, Alaska 63.559°, -150.697° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 51 km E of Denali National Park, Alaska on August 15, 2026, with origin time 20:26 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 20:00:42 UTC | 3.1ml | 77 km W of Nikolski, Alaska 52.967°, -170.009° | 148.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2026, worldwide seismic activity registered a magnitude 3.1 earthquake 77 km W of Nikolski, Alaska at 20:00 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 19:57:51 UTC | 4.2mb | 39 km N of Vallenar, Chile -28.223°, -70.818° | 86.4 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 39 km N of Vallenar, Chile at 19:57 UTC on August 15, 2026. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 19:32:30 UTC | 5.5mww | Volcano Islands, Japan region 23.446°, 142.787° | 40.0 km | - | II | green | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.5 earthquake in the Volcano Islands, Japan region with origin time 19:32 UTC on August 15, 2026. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 19:30:15 UTC | 2.1ml | 52 km E of Pedro Bay, Alaska 59.766°, -153.169° | 128.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 52 km E of Pedro Bay, Alaska on August 15, 2026 at 19:30 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 19:15:53 UTC | 4.2mb | 48 km NNW of Ruteng, Indonesia -8.211°, 120.277° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 48 km NNW of Ruteng, Indonesia on August 15, 2026, with origin time 19:15 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.1 earthquake that occurred about 9 hours earlier. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 19:04:57 UTC | 3.4md | 97 km N of Culebra, Puerto Rico 19.182°, -65.347° | 8.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.4 earthquake 97 km N of Culebra, Puerto Rico at 19:04 UTC on August 15, 2026. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 19:04:43 UTC | 4.2mb | 92 km SW of Puerto Madero, Mexico 14.058°, -92.940° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 92 km SW of Puerto Madero, Mexico came in on August 15, 2026 at 19:04 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 19:04:43 UTC | 2.0ml | 85 km SSE of Adak, Alaska 51.144°, -176.230° | 15.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 85 km SSE of Adak, Alaska on August 15, 2026 at 19:04 UTC. Coming 19 hours after a magnitude 2.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 18:43:05 UTC | 4.4mb | 45 km N of Ruteng, Indonesia -8.203°, 120.542° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 45 km N of Ruteng, Indonesia with origin time 18:43 UTC on August 15, 2026. It arrived roughly 17 hours after a larger magnitude 4.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 18:42:55 UTC | 2.8ml | Rat Islands, Aleutian Islands, Alaska 51.415°, 178.770° | 39.4 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2026 at 18:42 UTC, a magnitude 2.8 earthquake struck near Rat Islands, Aleutian Islands, Alaska. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 18:40:21 UTC | 4.5mb | 47 km NNE of Ruteng, Indonesia -8.220°, 120.640° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:40 UTC on August 15, 2026, a magnitude 4.5 tremor occurred 47 km NNE of Ruteng, Indonesia. This event falls inside the aftershock decay of a nearby magnitude 4.7 earthquake that occurred about 12 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 18:19:49 UTC | 2.5ml | 37 km SSE of Midland, Texas 31.669°, -101.997° | 3.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 seismic event took place 37 km SSE of Midland, Texas on August 15, 2026 at 18:19 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 18:02:49 UTC | 2.4ml | 123 km E of McCarthy, Alaska 61.483°, -140.601° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2026 at 18:02 UTC, a magnitude 2.4 earthquake struck 123 km E of McCarthy, Alaska. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 17:51:27 UTC | 4.7mb | 96 km NNE of Ruteng, Indonesia -7.767°, 120.677° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.7 earthquake 96 km NNE of Ruteng, Indonesia with origin time 17:51 UTC on August 15, 2026. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 17:44:14 UTC | 4.7mb | 76 km N of Ruteng, Indonesia -7.926°, 120.412° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2026, worldwide seismic activity registered a magnitude 4.7 earthquake 76 km N of Ruteng, Indonesia at 17:44 UTC. Coming 16 hours after a magnitude 4.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-08-15 17:41:42 UTC | 4.6mb | 192 km SSE of Vilyuchinsk, Russia 51.492°, 159.970° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.6 earthquake 192 km SSE of Vilyuchinsk, Russia came in on August 15, 2026 at 17:41 UTC. See the M4.6 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 15, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.