Earthquakes on September 25, 2021
220
EARTHQUAKES on September 25, 2021
24-hour UTC period · USGS data
LARGEST: M5.8 — south of Africa
7 km deep · 2 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
33
M3.0–3.9
6
M2.0–2.9
56
M1.0–1.9
122
Activity Summary
220
Total earthquakes
~250
Daily average
Normal
Activity level
3
M5.0+ events
Significant Earthquakes (M4.5+)
5.8
south of Africa
05:21 UTC · 7.0 km deep
Felt by 2
5.0
37 km NNE of Hualien City, Taiwan
22:21 UTC · 45.6 km deep
Felt by 16
5.0
206 km N of Shi Yomi, India
04:41 UTC · 31.6 km deep
Felt by 1
4.8
69 km NW of San Antonio de los Cobres, Argentina
19:55 UTC · 209.8 km deep
4.8
south of the Fiji Islands
13:46 UTC · 619.9 km deep
Felt by 1
4.8
Kermadec Islands, New Zealand
13:42 UTC · 10.0 km deep
4.8
54 km NE of Anse-Bertrand, Guadeloupe
03:12 UTC · 26.9 km deep
Felt by 40
4.7
south of Africa
20:50 UTC · 10.0 km deep
Earthquake Map — September 25, 2021
All Earthquakes — September 25, 2021
Showing 30 of 98 (filtered from 220)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-09-25 2021-09-25 23:04:45 UTC | 2.2ml | 3 km S of Petersville, Alaska 62.462°, -150.773° | 53.5 km | - | - | - | Auto | USGS → |
On September 25, 2021, worldwide seismic activity registered a magnitude 2.2 earthquake 3 km S of Petersville, Alaska at 23:04 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 22:56:57 UTC | 2.1md | 1 km ESE of P?hala, Hawaii 19.199°, -155.464° | 38.9 km | - | - | - | Auto | USGS → |
This magnitude 2.1 event was detected 1 km ESE of P?hala, Hawaii on September 25, 2021, with origin time 22:56 UTC. Coming 9 hours after a magnitude 2.7 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. | ||||||||
2021-09-25 2021-09-25 22:52:45 UTC | 2.3ml | 8 km ENE of P?hala, Hawaii 19.218°, -155.400° | 32.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 8 km ENE of P?hala, Hawaii on September 25, 2021, with origin time 22:52 UTC. It arrived roughly 9 hours after a larger magnitude 2.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 22:52:31 UTC | 2.2ml | 10 km ENE of P?hala, Hawaii 19.229°, -155.387° | 31.9 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.2 earthquake 10 km ENE of P?hala, Hawaii came in on September 25, 2021 at 22:52 UTC. Coming 9 hours after a magnitude 2.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 22:43:58 UTC | 4.6mb | south of Africa -53.221°, 23.549° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded south of Africa on September 25, 2021 at 22:43 UTC. Coming 2 hours after a magnitude 4.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 22:40:09 UTC | 2.4ml | 3 km E of Quinton, Oklahoma 35.121°, -95.338° | 7.7 km | 1 | - | - | ✓ Reviewed | USGS → |
At 22:40 UTC on September 25, 2021, a magnitude 2.4 tremor occurred 3 km E of Quinton, Oklahoma. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 22:30:40 UTC | 2.4ml | 32 km NW of Stanley, Idaho 44.450°, -115.187° | 7.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 32 km NW of Stanley, Idaho at 22:30 UTC on September 25, 2021. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 6 hours earlier. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 22:25:25 UTC | 2.3ml | 8 km E of P?hala, Hawaii 19.208°, -155.402° | 32.2 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.3 earthquake 8 km E of P?hala, Hawaii came in on September 25, 2021 at 22:25 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 9 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 22:21:19 UTC | 5.0mww | 37 km NNE of Hualien City, Taiwan 24.295°, 121.743° | 45.6 km | 16 | - | - | ✓ Reviewed | USGS → |
A magnitude 5.0 earthquake was recorded 37 km NNE of Hualien City, Taiwan on September 25, 2021 at 22:21 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 21:59:50 UTC | 2.1ml | 41 km NNW of Valdez, Alaska 61.489°, -146.538° | 2.2 km | - | - | - | Auto | USGS → |
A magnitude 2.1 earthquake was recorded 41 km NNW of Valdez, Alaska on September 25, 2021 at 21:59 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. | ||||||||
2021-09-25 2021-09-25 21:46:37 UTC | 4.5mb | 26 km ESE of Nishinoomote, Japan 30.682°, 131.267° | 38.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 26 km ESE of Nishinoomote, Japan on September 25, 2021, with origin time 21:46 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 21:19:34 UTC | 4.4mb | South Sandwich Islands region -58.824°, -24.744° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 25, 2021 at 21:19 UTC, a magnitude 4.4 earthquake struck in the South Sandwich Islands region. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 21:18:42 UTC | 2.6ml | 45 km W of Kalaoa, Hawaii 19.790°, -156.415° | 2.0 km | 1 | - | - | Auto | USGS → |
On September 25, 2021 at 21:18 UTC, a magnitude 2.6 earthquake struck 45 km W of Kalaoa, Hawaii. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 21:18:14 UTC | 3.9ml | 92 km SSW of Ko Olina, Hawaii 20.605°, -158.552° | 14.2 km | - | II | - | ✓ Reviewed | USGS → |
This magnitude 3.9 event was detected 92 km SSW of Ko Olina, Hawaii on September 25, 2021, with origin time 21:18 UTC. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 20:50:20 UTC | 4.7mb | south of Africa -53.350°, 23.345° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.7 earthquake south of Africa came in on September 25, 2021 at 20:50 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.8 earthquake that occurred about 15 hours earlier. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 20:18:07 UTC | 2.8md | 73km W of Ferndale, CA 40.643°, -125.127° | 6.6 km | 3 | - | - | ✓ Reviewed | USGS → |
At 20:18 UTC on September 25, 2021, a magnitude 2.8 tremor occurred 73km W of Ferndale, CA. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 20:16:26 UTC | 2.2ml | 21 km ESE of Denali National Park, Alaska 63.494°, -151.294° | 3.8 km | - | - | - | Auto | USGS → |
At 20:16 UTC on September 25, 2021, a magnitude 2.2 tremor occurred 21 km ESE of Denali National Park, Alaska. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 19:55:05 UTC | 4.8mb | 69 km NW of San Antonio de los Cobres, Argentina -23.842°, -66.866° | 209.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 25, 2021, worldwide seismic activity registered a magnitude 4.8 earthquake 69 km NW of San Antonio de los Cobres, Argentina at 19:55 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 18:09:22 UTC | 4.5mb | 142 km E of Iquique, Chile -20.426°, -68.803° | 118.8 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 142 km E of Iquique, Chile came in on September 25, 2021 at 18:09 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 18:07:29 UTC | 2.2md | 9 km E of P?hala, Hawaii 19.219°, -155.390° | 32.1 km | - | - | - | Auto | USGS → |
On September 25, 2021 at 18:07 UTC, a magnitude 2.2 earthquake struck 9 km E of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 5 hours earlier. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 18:03:57 UTC | 2.1md | 6 km S of Volcano, Hawaii 19.380°, -155.242° | 2.1 km | - | - | - | ✓ Reviewed | USGS → |
September 25, 2021 brought a magnitude 2.1 earthquake 6 km S of Volcano, Hawaii, logged at 18:03 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. | ||||||||
2021-09-25 2021-09-25 18:03:01 UTC | 2.8md | 7 km ESE of La Parguera, Puerto Rico 17.953°, -66.984° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake 7 km ESE of La Parguera, Puerto Rico at 18:03 UTC on September 25, 2021. It arrived roughly 2 hours after a larger magnitude 3.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 17:50:07 UTC | 2.2ml | 80 km NW of Lake Louise, Alaska 62.743°, -147.756° | 0.0 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.2 earthquake 80 km NW of Lake Louise, Alaska at 17:50 UTC on September 25, 2021. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 17:22:36 UTC | 4.4mb | South Sandwich Islands region -58.835°, -24.202° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded in the South Sandwich Islands region on September 25, 2021 at 17:22 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 17:01:59 UTC | 2.7ml | 6 km WSW of Meadow Lakes, Alaska 61.597°, -149.702° | 19.1 km | 3 | - | - | Auto | USGS → |
Reports of a magnitude 2.7 earthquake 6 km WSW of Meadow Lakes, Alaska came in on September 25, 2021 at 17:01 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 17:01:43 UTC | 4.6mb | Izu Islands, Japan region 29.040°, 141.758° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake in the Izu Islands, Japan region with origin time 17:01 UTC on September 25, 2021. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 16:39:59 UTC | 2.1md | 2km E of Hayward, CA 37.643°, -122.053° | 3.1 km | 22 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 2km E of Hayward, CA with origin time 16:39 UTC on September 25, 2021. 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. | ||||||||
2021-09-25 2021-09-25 16:39:45 UTC | 4.6mb | 35 km NNW of Quíbor, Venezuela 10.243°, -69.696° | 19.9 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 25, 2021, worldwide seismic activity registered a magnitude 4.6 earthquake 35 km NNW of Quíbor, Venezuela at 16:39 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 16:21:47 UTC | 2.0md | 8 km ENE of P?hala, Hawaii 19.219°, -155.400° | 32.9 km | - | - | - | Auto | USGS → |
On September 25, 2021 at 16:21 UTC, a magnitude 2.0 earthquake struck 8 km ENE of P?hala, Hawaii. It arrived roughly 3 hours after a larger magnitude 2.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-25 2021-09-25 16:20:59 UTC | 2.5ml | 36 km NW of Stanley, Idaho 44.487°, -115.195° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 36 km NW of Stanley, Idaho on September 25, 2021 at 16:20 UTC. The event was offshore. See the M2.5 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 25, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.