Earthquakes on September 18, 2025
269
EARTHQUAKES on September 18, 2025
24-hour UTC period · USGS data
27 km deep · 26 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
22
M4.0–4.9
83
M3.0–3.9
8
M2.0–2.9
31
M1.0–1.9
125
Activity Summary
269
Total earthquakes
~250
Daily average
Normal
Activity level
22
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
7.8
140 km E of Petropavlovsk-Kamchatsky, Russia
18:58 UTC · 27.0 km deep
Felt by 26
6.0
26 km S of Nabire, Indonesia
18:19 UTC · 28.0 km deep
Felt by 6
5.8
144 km E of Petropavlovsk-Kamchatsky, Russia
19:08 UTC · 10.0 km deep
5.7
140 km E of Petropavlovsk-Kamchatsky, Russia
21:37 UTC · 47.9 km deep
5.6
156 km ESE of Petropavlovsk-Kamchatsky, Russia
20:03 UTC · 10.0 km deep
5.5
151 km E of Petropavlovsk-Kamchatsky, Russia
22:37 UTC · 35.0 km deep
5.5
144 km E of Petropavlovsk-Kamchatsky, Russia
20:17 UTC · 35.7 km deep
5.5
160 km ESE of Petropavlovsk-Kamchatsky, Russia
19:26 UTC · 10.0 km deep
Earthquake Map — September 18, 2025
All Earthquakes — September 18, 2025
Showing 30 of 144 (filtered from 269)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2025-09-18 2025-09-18 23:55:24 UTC | 4.7mb | Easter Island region -24.456°, -112.068° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 18, 2025 at 23:55 UTC, a magnitude 4.7 earthquake struck in the Easter Island region. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 23:47:32 UTC | 4.3mb | 146 km ESE of Petropavlovsk-Kamchatsky, Russia 52.586°, 160.650° | 29.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 146 km ESE of Petropavlovsk-Kamchatsky, Russia at 23:47 UTC on September 18, 2025. This event falls inside the aftershock decay of a nearby magnitude 5.6 earthquake that occurred about 4 hours earlier. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 23:41:46 UTC | 4.7mb | 153 km ESE of Petropavlovsk-Kamchatsky, Russia 52.483°, 160.693° | 10.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded 153 km ESE of Petropavlovsk-Kamchatsky, Russia on September 18, 2025 at 23:41 UTC. Coming 4 hours after a magnitude 5.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 23:40:46 UTC | 4.9mb | 154 km ESE of Petropavlovsk-Kamchatsky, Russia 52.635°, 160.816° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake 154 km ESE of Petropavlovsk-Kamchatsky, Russia with origin time 23:40 UTC on September 18, 2025. This event falls inside the aftershock decay of a nearby magnitude 5.5 earthquake that occurred about 4 hours earlier. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 23:27:44 UTC | 4.8mb | 156 km E of Petropavlovsk-Kamchatsky, Russia 52.834°, 160.930° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 earthquake was recorded 156 km E of Petropavlovsk-Kamchatsky, Russia on September 18, 2025 at 23:27 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.8 earthquake that occurred about 4 hours earlier. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 23:14:59 UTC | 5.2mb | 153 km ESE of Petropavlovsk-Kamchatsky, Russia 52.533°, 160.724° | 20.9 km | - | - | - | ✓ Reviewed | USGS → |
At 23:14 UTC on September 18, 2025, a magnitude 5.2 tremor occurred 153 km ESE of Petropavlovsk-Kamchatsky, Russia. Coming 3 hours after a magnitude 5.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 23:10:08 UTC | 4.8mb | 95 km ESE of Petropavlovsk-Kamchatsky, Russia 52.841°, 160.003° | 46.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.8 earthquake 95 km ESE of Petropavlovsk-Kamchatsky, Russia with origin time 23:10 UTC on September 18, 2025. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:59:41 UTC | 4.6mb | 142 km ESE of Petropavlovsk-Kamchatsky, Russia 52.367°, 160.397° | 28.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded 142 km ESE of Petropavlovsk-Kamchatsky, Russia on September 18, 2025 at 22:59 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:53:41 UTC | 5.0mb | 24 km SSE of Nabire, Indonesia -3.576°, 135.549° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
September 18, 2025 brought a magnitude 5.0 earthquake 24 km SSE of Nabire, Indonesia, logged at 22:53 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.0 earthquake that occurred about 5 hours earlier. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:50:37 UTC | 4.9mb | 143 km ENE of Petropavlovsk-Kamchatsky, Russia 53.393°, 160.709° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 18, 2025, worldwide seismic activity registered a magnitude 4.9 earthquake 143 km ENE of Petropavlovsk-Kamchatsky, Russia at 22:50 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:45:46 UTC | 4.5mb | 57 km E of Petropavlovsk-Kamchatsky, Russia 53.065°, 159.489° | 91.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 57 km E of Petropavlovsk-Kamchatsky, Russia came in on September 18, 2025 at 22:45 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:37:10 UTC | 5.5mb | 151 km E of Petropavlovsk-Kamchatsky, Russia 53.007°, 160.885° | 35.0 km | - | IV | green | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.5 earthquake 151 km E of Petropavlovsk-Kamchatsky, Russia at 22:37 UTC on September 18, 2025. Coming 4 hours after a magnitude 7.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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. | ||||||||
2025-09-18 2025-09-18 22:34:32 UTC | 4.5mb | 139 km ESE of Petropavlovsk-Kamchatsky, Russia 52.553°, 160.511° | 31.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place 139 km ESE of Petropavlovsk-Kamchatsky, Russia on September 18, 2025 at 22:34 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.6 earthquake that occurred about 3 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:32:43 UTC | 2.3ml | 6 km S of Pāhala, Hawaii 19.148°, -155.480° | 33.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 18, 2025 at 22:32 UTC, a magnitude 2.3 earthquake struck 6 km S of Pāhala, Hawaii. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:32:12 UTC | 4.3mb | 176 km SSE of Vilyuchinsk, Russia 51.469°, 159.424° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 176 km SSE of Vilyuchinsk, Russia on September 18, 2025, with origin time 22:32 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:17:07 UTC | 4.9mb | 147 km E of Petropavlovsk-Kamchatsky, Russia 53.036°, 160.822° | 31.4 km | - | - | - | ✓ Reviewed | USGS → |
At 22:17 UTC on September 18, 2025, a magnitude 4.9 tremor occurred 147 km E of Petropavlovsk-Kamchatsky, Russia. It arrived roughly 3 hours after a larger magnitude 7.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:14:02 UTC | 4.2mb | 120 km SSE of Vilyuchinsk, Russia 52.008°, 159.319° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 120 km SSE of Vilyuchinsk, Russia with origin time 22:14 UTC on September 18, 2025. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:10:19 UTC | 4.9mb | 148 km E of Petropavlovsk-Kamchatsky, Russia 52.993°, 160.833° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.9 earthquake 148 km E of Petropavlovsk-Kamchatsky, Russia at 22:10 UTC on September 18, 2025. This event falls inside the aftershock decay of a nearby magnitude 7.8 earthquake that occurred about 3 hours earlier. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:08:06 UTC | 4.9mb | 155 km ESE of Petropavlovsk-Kamchatsky, Russia 52.769°, 160.882° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.9 event was detected 155 km ESE of Petropavlovsk-Kamchatsky, Russia on September 18, 2025, with origin time 22:08 UTC. Coming 2 hours after a magnitude 5.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 22:03:40 UTC | 4.4mb | 147 km E of Petropavlovsk-Kamchatsky, Russia 52.955°, 160.815° | 36.1 km | - | - | - | ✓ Reviewed | USGS → |
At 22:03 UTC on September 18, 2025, a magnitude 4.4 tremor occurred 147 km E of Petropavlovsk-Kamchatsky, Russia. Coming 3 hours after a magnitude 5.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:42:11 UTC | 4.6mb | 158 km E of Petropavlovsk-Kamchatsky, Russia 53.055°, 160.998° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake 158 km E of Petropavlovsk-Kamchatsky, Russia with origin time 21:42 UTC on September 18, 2025. This event falls inside the aftershock decay of a nearby magnitude 5.8 earthquake that occurred about 3 hours earlier. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:41:06 UTC | 4.9mb | 159 km E of Petropavlovsk-Kamchatsky, Russia 52.981°, 161.001° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.9 earthquake 159 km E of Petropavlovsk-Kamchatsky, Russia came in on September 18, 2025 at 21:41 UTC. It arrived roughly 3 hours after a larger magnitude 5.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:37:55 UTC | 5.7mb | 140 km E of Petropavlovsk-Kamchatsky, Russia 52.937°, 160.705° | 47.9 km | - | IV | green | ✓ Reviewed | USGS → |
On September 18, 2025, worldwide seismic activity registered a magnitude 5.7 earthquake 140 km E of Petropavlovsk-Kamchatsky, Russia at 21:37 UTC. It arrived roughly 2 hours after a larger magnitude 5.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:36:41 UTC | 5.2mb | 164 km ESE of Petropavlovsk-Kamchatsky, Russia 52.353°, 160.756° | 10.0 km | - | III | green | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.2 earthquake 164 km ESE of Petropavlovsk-Kamchatsky, Russia at 21:36 UTC on September 18, 2025. It arrived roughly 2 hours after a larger magnitude 5.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:33:40 UTC | 4.1mb | 147 km E of Petropavlovsk-Kamchatsky, Russia 52.844°, 160.797° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 18, 2025 at 21:33 UTC, a magnitude 4.1 earthquake struck 147 km E of Petropavlovsk-Kamchatsky, Russia. This event falls inside the aftershock decay of a nearby magnitude 5.8 earthquake that occurred about 2 hours earlier. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:32:43 UTC | 2.4ml | 60 km W of Happy Valley, Alaska 60.024°, -152.805° | 108.7 km | 1 | - | - | Auto | USGS → |
On September 18, 2025, worldwide seismic activity registered a magnitude 2.4 earthquake 60 km W of Happy Valley, Alaska at 21:32 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:29:25 UTC | 4.7mb | 122 km E of Petropavlovsk-Kamchatsky, Russia 53.004°, 160.446° | 59.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.7 earthquake 122 km E of Petropavlovsk-Kamchatsky, Russia with origin time 21:29 UTC on September 18, 2025. It arrived roughly 2 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:22:11 UTC | 4.1mb | 133 km SE of Petropavlovsk-Kamchatsky, Russia 52.238°, 160.057° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 133 km SE of Petropavlovsk-Kamchatsky, Russia on September 18, 2025 at 21:22 UTC. Coming 1 hours after a magnitude 4.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:21:40 UTC | 4.6mb | 6 km E of Hualien City, Taiwan 23.980°, 121.671° | 20.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 18, 2025, worldwide seismic activity registered a magnitude 4.6 earthquake 6 km E of Hualien City, Taiwan at 21:21 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-09-18 2025-09-18 21:19:56 UTC | 4.3mb | 116 km ESE of Petropavlovsk-Kamchatsky, Russia 52.768°, 160.291° | 29.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 116 km ESE of Petropavlovsk-Kamchatsky, Russia came in on September 18, 2025 at 21:19 UTC. It arrived roughly 1 hours after a larger magnitude 4.8 mainshock in the same 20 km area, placing it within the typical aftershock window. 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 September 18, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.