Earthquakes on August 9, 2025
281
EARTHQUAKES on August 9, 2025
24-hour UTC period · USGS data
11 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
75
M3.0–3.9
14
M2.0–2.9
56
M1.0–1.9
130
Activity Summary
281
Total earthquakes
~250
Daily average
Normal
Activity level
6
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.0
265 km ESE of Severo-Kuril’sk, Russia
14:04 UTC · 11.0 km deep
5.9
104 km SSW of Champerico, Guatemala
20:40 UTC · 9.0 km deep
Felt by 14
5.1
52 km ESE of Pondaguitan, Philippines
11:33 UTC · 97.7 km deep
Felt by 4
5.0
139 km SE of Petropavlovsk-Kamchatsky, Russia
09:40 UTC · 20.8 km deep
5.0
120 km ENE of Ozernovskiy, Russia
08:01 UTC · 70.2 km deep
5.0
96 km SSW of Severo-Kuril’sk, Russia
06:52 UTC · 75.4 km deep
4.9
184 km SSE of Vilyuchinsk, Russia
10:34 UTC · 28.3 km deep
Felt by 1
4.9
Macquarie Island region
09:04 UTC · 10.0 km deep
Earthquake Map — August 9, 2025
All Earthquakes — August 9, 2025
Showing 30 of 151 (filtered from 281)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2025-08-09 2025-08-09 23:59:19 UTC | 4.2mb | 63 km NE of Labuan Lombok, Indonesia -8.037°, 117.002° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 63 km NE of Labuan Lombok, Indonesia with origin time 23:59 UTC on August 9, 2025. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 23:51:32 UTC | 3.7mb | Rat Islands, Aleutian Islands, Alaska 52.059°, 178.493° | 157.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.7 earthquake was recorded near Rat Islands, Aleutian Islands, Alaska on August 9, 2025 at 23:51 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 23:41:10 UTC | 4.2mb | 254 km ESE of Severo-Kuril’sk, Russia 50.172°, 159.627° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2025, worldwide seismic activity registered a magnitude 4.2 earthquake 254 km ESE of Severo-Kuril’sk, Russia at 23:41 UTC. It arrived roughly 10 hours after a larger magnitude 6.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 23:40:13 UTC | 2.1md | 12 km NW of Pinnacles, CA 36.598°, -121.252° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 12 km NW of Pinnacles, CA on August 9, 2025, with origin time 23:40 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 23:11:56 UTC | 4.6mb | 214 km SSE of Vilyuchinsk, Russia 51.144°, 159.566° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded 214 km SSE of Vilyuchinsk, Russia on August 9, 2025 at 23:11 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 22:53:13 UTC | 4.1mb | 134 km ESE of Petropavlovsk-Kamchatsky, Russia 52.601°, 160.472° | 44.3 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2025, worldwide seismic activity registered a magnitude 4.1 earthquake 134 km ESE of Petropavlovsk-Kamchatsky, Russia at 22:53 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.4 earthquake that occurred about 15 hours earlier. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 22:51:50 UTC | 4.6mb | central Mid-Atlantic Ridge 2.784°, -31.364° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake near central Mid-Atlantic Ridge with origin time 22:51 UTC on August 9, 2025. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 22:36:28 UTC | 2.1md | 9 km SSE of Maria Antonia, Puerto Rico 17.898°, -66.864° | 16.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 9 km SSE of Maria Antonia, Puerto Rico on August 9, 2025, with origin time 22:36 UTC. It arrived roughly 11 hours after a larger magnitude 2.7 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. | ||||||||
2025-08-09 2025-08-09 22:26:21 UTC | 4.2mb | 125 km S of Vilyuchinsk, Russia 51.806°, 158.365° | 66.3 km | - | - | - | ✓ Reviewed | USGS → |
At 22:26 UTC on August 9, 2025, a magnitude 4.2 tremor occurred 125 km S of Vilyuchinsk, Russia. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 14 hours earlier. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 22:21:42 UTC | 4.4mb | 267 km ESE of Severo-Kuril’sk, Russia 49.992°, 159.725° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2025 at 22:21 UTC, a magnitude 4.4 earthquake struck 267 km ESE of Severo-Kuril’sk, Russia. It arrived roughly 8 hours after a larger magnitude 6.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 22:05:16 UTC | 2.1ml | 87 km S of Sand Point, Alaska 54.560°, -160.290° | 15.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 87 km S of Sand Point, Alaska came in on August 9, 2025 at 22:05 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 18 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 21:53:36 UTC | 2.5md | 11 km SSE of Pinnacles, CA 36.463°, -121.062° | 4.2 km | 3 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 11 km SSE of Pinnacles, CA on August 9, 2025, with origin time 21:53 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. | ||||||||
2025-08-09 2025-08-09 21:18:01 UTC | 4.4mb | 26 km SW of Balangonan, Philippines 5.373°, 125.220° | 59.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 26 km SW of Balangonan, Philippines on August 9, 2025 at 21:18 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 20:53:24 UTC | 2.7ml | 269 km WSW of Adak, Alaska 51.181°, 179.646° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2025 at 20:53 UTC, a magnitude 2.7 earthquake struck 269 km WSW of Adak, Alaska. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 20:53:24 UTC | 2.5ml | 258 km WNW of Adak, Alaska 52.681°, 179.818° | 14.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 258 km WNW of Adak, Alaska came in on August 9, 2025 at 20:53 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 20:53:11 UTC | 4.5mb | 169 km E of Severo-Kuril’sk, Russia 50.463°, 158.500° | 50.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake 169 km E of Severo-Kuril’sk, Russia with origin time 20:53 UTC on August 9, 2025. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 20:49:50 UTC | 3.4md | 28 km E of Punta Cana, Dominican Republic 18.597°, -68.133° | 90.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.4 event was detected 28 km E of Punta Cana, Dominican Republic on August 9, 2025, with origin time 20:49 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 20:40:57 UTC | 5.9mww | 104 km SSW of Champerico, Guatemala 13.480°, -92.399° | 9.0 km | 14 | III | green | ✓ Reviewed | USGS → |
A magnitude 5.9 earthquake was recorded 104 km SSW of Champerico, Guatemala on August 9, 2025 at 20:40 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 20:38:21 UTC | 2.0md | 2 km E of Hayward, CA 37.647°, -122.049° | 5.4 km | - | - | - | ✓ Reviewed | USGS → |
August 9, 2025 brought a magnitude 2.0 earthquake 2 km E of Hayward, CA, logged at 20:38 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 20:28:40 UTC | 2.1ml | 93 km SSE of Sand Point, Alaska 54.567°, -159.925° | 17.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 93 km SSE of Sand Point, Alaska on August 9, 2025 at 20:28 UTC. Coming 4 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 20:08:44 UTC | 3.0ml | 8 km SW of Morongo Valley, CA 33.992°, -116.644° | 6.6 km | 23 | - | - | ✓ Reviewed | USGS → |
At 20:08 UTC on August 9, 2025, a magnitude 3.0 tremor occurred 8 km SW of Morongo Valley, CA. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 19:38:18 UTC | 4.0mb | 184 km SE of Vilyuchinsk, Russia 51.654°, 160.125° | 26.2 km | - | - | - | ✓ Reviewed | USGS → |
August 9, 2025 brought a magnitude 4.0 earthquake 184 km SE of Vilyuchinsk, Russia, logged at 19:38 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.8 earthquake that occurred about 16 hours earlier. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 19:36:40 UTC | 2.8ml | 177 km SSE of Atka, Alaska 50.756°, -173.112° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 177 km SSE of Atka, Alaska came in on August 9, 2025 at 19:36 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 19:21:35 UTC | 4.8mb | 132 km ESE of Petropavlovsk-Kamchatsky, Russia 52.422°, 160.285° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 seismic event took place 132 km ESE of Petropavlovsk-Kamchatsky, Russia on August 9, 2025 at 19:21 UTC. Coming 10 hours after a magnitude 5.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 19:14:46 UTC | 4.6mb | 173 km SE of Vilyuchinsk, Russia 51.669°, 159.896° | 21.4 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2025, worldwide seismic activity registered a magnitude 4.6 earthquake 173 km SE of Vilyuchinsk, Russia at 19:14 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.8 earthquake that occurred about 16 hours earlier. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 19:12:26 UTC | 2.9ml | 40 km NE of Miches, Dominican Republic 19.247°, -68.775° | 2.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.9 earthquake 40 km NE of Miches, Dominican Republic at 19:12 UTC on August 9, 2025. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 19:07:35 UTC | 4.2mb | 156 km SW of Tasiilaq, Greenland 64.555°, -39.810° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 156 km SW of Tasiilaq, Greenland at 19:07 UTC on August 9, 2025. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 19:05:52 UTC | 4.6mb | 61 km SE of Petropavlovsk-Kamchatsky, Russia 52.648°, 159.225° | 82.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:05 UTC on August 9, 2025, a magnitude 4.6 tremor occurred 61 km SE of Petropavlovsk-Kamchatsky, Russia. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 18:59:31 UTC | 2.1ml | 3 km S of Pāhala, Hawaii 19.169°, -155.480° | 31.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 3 km S of Pāhala, Hawaii came in on August 9, 2025 at 18:59 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-09 2025-08-09 18:57:07 UTC | 4.3mb | 253 km E of Severo-Kuril’sk, Russia 50.294°, 159.644° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:57 UTC on August 9, 2025, a magnitude 4.3 tremor occurred 253 km E of Severo-Kuril’sk, Russia. Coming 9 hours after a magnitude 4.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.3 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 9, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.