Earthquakes on August 17, 2025
201
EARTHQUAKES on August 17, 2025
24-hour UTC period · USGS data
20 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
40
M3.0–3.9
10
M2.0–2.9
27
M1.0–1.9
118
Activity Summary
201
Total earthquakes
~250
Daily average
Normal
Activity level
6
M5.0+ events
Significant Earthquakes (M4.5+)
5.5
109 km WNW of Tobelo, Indonesia
15:03 UTC · 20.1 km deep
5.4
87 km SSW of Puerto San José, Guatemala
05:59 UTC · 10.0 km deep
Felt by 1
5.1
47 km W of Chebika, Tunisia
19:11 UTC · 10.0 km deep
5.0
63 km W of Abra Pampa, Argentina
19:09 UTC · 241.7 km deep
5.0
170 km ESE of Kimbe, Papua New Guinea
18:35 UTC · 10.0 km deep
5.0
118 km WNW of Tobelo, Indonesia
15:31 UTC · 34.0 km deep
4.9
western Indian-Antarctic Ridge
09:01 UTC · 10.0 km deep
4.9
92 km W of Las Grullas Margen Derecha, Mexico
07:55 UTC · 10.0 km deep
Felt by 1
Earthquake Map — August 17, 2025
All Earthquakes — August 17, 2025
Showing 30 of 83 (filtered from 201)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2025-08-17 2025-08-17 23:57:06 UTC | 3.3md | 59 km N of Culebra, Puerto Rico 18.839°, -65.375° | 22.8 km | - | - | - | ✓ Reviewed | USGS → |
On August 17, 2025, worldwide seismic activity registered a magnitude 3.3 earthquake 59 km N of Culebra, Puerto Rico at 23:57 UTC. Coming 1 hours after a magnitude 3.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 23:43:07 UTC | 2.7ml | 31 km ENE of Atka, Alaska 52.347°, -173.809° | 170.4 km | - | - | - | ✓ Reviewed | USGS → |
On August 17, 2025 at 23:43 UTC, a magnitude 2.7 earthquake struck 31 km ENE of Atka, Alaska. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 23:43:07 UTC | 2.5ml | 164 km SSE of Atka, Alaska 50.784°, -173.479° | 3.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 164 km SSE of Atka, Alaska at 23:43 UTC on August 17, 2025. 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. | ||||||||
2025-08-17 2025-08-17 23:34:04 UTC | 4.3mb | 257 km ESE of Severo-Kuril’sk, Russia 50.232°, 159.684° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 257 km ESE of Severo-Kuril’sk, Russia on August 17, 2025, with origin time 23:34 UTC. Coming 10 hours after a magnitude 4.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 23:33:27 UTC | 4.8mb | 64 km S of Hamamatsu, Japan 34.118°, 137.771° | 10.0 km | 3 | - | - | ✓ Reviewed | USGS → |
On August 17, 2025 at 23:33 UTC, a magnitude 4.8 earthquake struck 64 km S of Hamamatsu, Japan. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 23:22:58 UTC | 2.9ml | 9 km NNE of Coso Junction, CA 36.120°, -117.918° | 4.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.9 earthquake 9 km NNE of Coso Junction, CA came in on August 17, 2025 at 23:22 UTC. In the 72 hours after this event, the USGS recorded 6 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. | ||||||||
2025-08-17 2025-08-17 23:21:37 UTC | 2.6ml | 9 km NNE of Coso Junction, CA 36.120°, -117.918° | 4.3 km | - | - | - | ✓ Reviewed | USGS → |
On August 17, 2025, worldwide seismic activity registered a magnitude 2.6 earthquake 9 km NNE of Coso Junction, CA at 23:21 UTC. In the 72 hours after this event, the USGS recorded 7 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. | ||||||||
2025-08-17 2025-08-17 23:12:32 UTC | 4.2mb | 145 km NW of Tobelo, Indonesia 2.473°, 126.929° | 57.8 km | - | - | - | ✓ Reviewed | USGS → |
On August 17, 2025, worldwide seismic activity registered a magnitude 4.2 earthquake 145 km NW of Tobelo, Indonesia at 23:12 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 23:12:27 UTC | 4.3mb | 200 km SE of Vilyuchinsk, Russia 51.680°, 160.516° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 200 km SE of Vilyuchinsk, Russia came in on August 17, 2025 at 23:12 UTC. It arrived roughly 20 hours after a larger magnitude 4.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 23:11:49 UTC | 2.8ml | 137 km SSW of Nikolski, Alaska 51.841°, -169.793° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 seismic event took place 137 km SSW of Nikolski, Alaska on August 17, 2025 at 23:11 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 22:39:33 UTC | 3.5md | 66 km N of Culebra, Puerto Rico 18.901°, -65.321° | 51.0 km | - | - | - | ✓ Reviewed | USGS → |
August 17, 2025 brought a magnitude 3.5 earthquake 66 km N of Culebra, Puerto Rico, logged at 22:39 UTC. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 22:37:23 UTC | 2.0ml | 97 km SSE of Sand Point, Alaska 54.586°, -159.703° | 21.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 97 km SSE of Sand Point, Alaska with origin time 22:37 UTC on August 17, 2025. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 22:31:26 UTC | 4.3mb | 72 km S of Puerto San José, Guatemala 13.280°, -90.941° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 72 km S of Puerto San José, Guatemala on August 17, 2025 at 22:31 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 22:29:29 UTC | 3.5md | 76 km N of Culebra, Puerto Rico 18.991°, -65.332° | 37.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 17, 2025 at 22:29 UTC, a magnitude 3.5 earthquake struck 76 km N of Culebra, Puerto Rico. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 21:46:18 UTC | 2.1ml | 29 km W of Fort Stockton, Texas 30.917°, -103.191° | 3.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 29 km W of Fort Stockton, Texas came in on August 17, 2025 at 21:46 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. | ||||||||
2025-08-17 2025-08-17 21:41:20 UTC | 4.2mb | 248 km SE of Petropavlovsk-Kamchatsky, Russia 51.505°, 161.237° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:41 UTC on August 17, 2025, a magnitude 4.2 tremor occurred 248 km SE of Petropavlovsk-Kamchatsky, Russia. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 21:41:13 UTC | 4.2mb | 41 km W of Colchane, Chile -19.246°, -69.034° | 115.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 41 km W of Colchane, Chile at 21:41 UTC on August 17, 2025. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 21:23:13 UTC | 2.0ml | 10 km SSE of Princeton, Canada 49.366°, -120.462° | -0.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 10 km SSE of Princeton, Canada on August 17, 2025 at 21:23 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. | ||||||||
2025-08-17 2025-08-17 21:20:16 UTC | 4.4mb | 125 km SSW of Lorengau, Papua New Guinea -3.062°, 146.791° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 17, 2025 at 21:20 UTC, a magnitude 4.4 earthquake struck 125 km SSW of Lorengau, Papua New Guinea. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 21:10:26 UTC | 3.7mb | 157 km WSW of Adak, Alaska 51.431°, -178.798° | 28.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.7 seismic event took place 157 km WSW of Adak, Alaska on August 17, 2025 at 21:10 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 21:01:47 UTC | 4.0mb | 50 km S of Severo-Kuril’sk, Russia 50.218°, 156.136° | 64.5 km | - | - | - | ✓ Reviewed | USGS → |
At 21:01 UTC on August 17, 2025, a magnitude 4.0 tremor occurred 50 km S of Severo-Kuril’sk, Russia. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 19:46:04 UTC | 2.4ml | 171 km SSE of Sand Point, Alaska 53.902°, -159.538° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 171 km SSE of Sand Point, Alaska came in on August 17, 2025 at 19:46 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 19:44:05 UTC | 2.4ml | 71 km S of Kokhanok, Alaska 58.800°, -154.946° | 132.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 71 km S of Kokhanok, Alaska on August 17, 2025 at 19:44 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 19:22:41 UTC | 4.5mb | 42 km W of Chebika, Tunisia 34.329°, 7.478° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake 42 km W of Chebika, Tunisia at 19:22 UTC on August 17, 2025. It arrived roughly 1 hours after a larger magnitude 5.1 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. | ||||||||
2025-08-17 2025-08-17 19:11:01 UTC | 5.1mww | 47 km W of Chebika, Tunisia 34.378°, 7.428° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.1 earthquake 47 km W of Chebika, Tunisia with origin time 19:11 UTC on August 17, 2025. The event was offshore. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 19:09:40 UTC | 5.0mww | 63 km W of Abra Pampa, Argentina -22.679°, -66.311° | 241.7 km | - | - | - | ✓ Reviewed | USGS → |
On August 17, 2025, worldwide seismic activity registered a magnitude 5.0 earthquake 63 km W of Abra Pampa, Argentina at 19:09 UTC. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 18:44:00 UTC | 2.3ml | 79 km ENE of Chignik, Alaska 56.483°, -157.163° | 66.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 79 km ENE of Chignik, Alaska with origin time 18:44 UTC on August 17, 2025. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 18:35:39 UTC | 5.0mb | 170 km ESE of Kimbe, Papua New Guinea -6.205°, 151.528° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:35 UTC on August 17, 2025, a magnitude 5.0 tremor occurred 170 km ESE of Kimbe, Papua New Guinea. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 18:33:55 UTC | 2.7ml | 96 km SSE of Sand Point, Alaska 54.506°, -160.084° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 96 km SSE of Sand Point, Alaska on August 17, 2025 at 18:33 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-08-17 2025-08-17 18:30:05 UTC | 4.4mb | Fiji region -21.718°, -179.440° | 598.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded in the Fiji region on August 17, 2025 at 18:30 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.4 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 August 17, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.