Earthquakes on September 23, 2020
277
EARTHQUAKES on September 23, 2020
24-hour UTC period · USGS data
10 km deep · 1 person felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
0
M4.0–4.9
27
M3.0–3.9
13
M2.0–2.9
57
M1.0–1.9
180
Activity Summary
277
Total earthquakes
~250
Daily average
Normal
Activity level
0
M5.0+ events
Significant Earthquakes (M4.5+)
4.7
80 km E of Cortes, Philippines
22:19 UTC · 10.0 km deep
Felt by 1
4.7
148 km WNW of Tobelo, Indonesia
22:07 UTC · 56.5 km deep
4.6
68 km SSW of Acajutla, El Salvador
20:42 UTC · 35.0 km deep
4.5
5 km ENE of Pilar, Philippines
23:32 UTC · 15.1 km deep
4.5
299 km SSW of Merizo Village, Guam
16:05 UTC · 10.0 km deep
4.5
off the coast of Ecuador
06:04 UTC · 10.0 km deep
4.5
1 km NW of Palanas, Philippines
04:05 UTC · 10.0 km deep
4.5
68 km ENE of Bacolod, Philippines
00:09 UTC · 10.0 km deep
Earthquake Map — September 23, 2020
All Earthquakes — September 23, 2020
Showing 30 of 97 (filtered from 277)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-09-23 2020-09-23 23:47:44 UTC | 2.1ml | 26 km NW of Stanley, Idaho 44.374°, -115.196° | 7.5 km | - | - | - | ✓ Reviewed | USGS → |
September 23, 2020 brought a magnitude 2.1 earthquake 26 km NW of Stanley, Idaho, logged at 23:47 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 7 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 23:44:09 UTC | 2.1md | 5 km SE of P?hala, Hawaii 19.164°, -155.450° | 30.7 km | - | - | - | Auto | USGS → |
A magnitude 2.1 earthquake was recorded 5 km SE of P?hala, Hawaii on September 23, 2020 at 23:44 UTC. It arrived roughly 21 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 23:32:54 UTC | 4.5mb | 5 km ENE of Pilar, Philippines 9.876°, 126.145° | 15.1 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2020, worldwide seismic activity registered a magnitude 4.5 earthquake 5 km ENE of Pilar, Philippines at 23:32 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 23:25:24 UTC | 2.3ml | 31 km SSE of Virginia City, Montana 45.025°, -111.837° | 5.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 31 km SSE of Virginia City, Montana on September 23, 2020, with origin time 23:25 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 23:25:09 UTC | 4.4mb | 5 km NE of Lushnjë, Albania 40.969°, 19.755° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 5 km NE of Lushnjë, Albania on September 23, 2020 at 23:25 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 23:09:24 UTC | 4.2mwr | 49 km NW of Taltal, Chile -25.084°, -70.826° | 35.1 km | - | - | - | ✓ Reviewed | USGS → |
At 23:09 UTC on September 23, 2020, a magnitude 4.2 tremor occurred 49 km NW of Taltal, Chile. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 22:51:33 UTC | 3.2ml | 218 km SE of Attu Station, Alaska 51.679°, 175.765° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2020, worldwide seismic activity registered a magnitude 3.2 earthquake 218 km SE of Attu Station, Alaska at 22:51 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 22:49:52 UTC | 2.8ml | 84km ESE of Maneadero, B.C., MX 31.507°, -115.717° | 9.2 km | - | - | - | ✓ Reviewed | USGS → |
At 22:49 UTC on September 23, 2020, a magnitude 2.8 tremor occurred 84km ESE of Maneadero, B.C., MX. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 22:30:30 UTC | 2.0ml | 10 km NW of Mooreland, Oklahoma 36.514°, -99.272° | 8.2 km | - | - | - | ✓ Reviewed | USGS → |
September 23, 2020 brought a magnitude 2.0 earthquake 10 km NW of Mooreland, Oklahoma, logged at 22:30 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 22:19:44 UTC | 4.7mb | 80 km E of Cortes, Philippines 9.342°, 126.918° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 23, 2020 at 22:19 UTC, a magnitude 4.7 earthquake struck 80 km E of Cortes, Philippines. It is the largest earthquake currently listed for worldwide seismic activity on September 23, 2020. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 22:07:55 UTC | 4.7mb | 148 km WNW of Tobelo, Indonesia 2.168°, 126.751° | 56.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded 148 km WNW of Tobelo, Indonesia on September 23, 2020 at 22:07 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 22:03:56 UTC | 3.6md | 58 km NNE of Punta Cana, Dominican Republic 19.102°, -68.287° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.6 seismic event took place 58 km NNE of Punta Cana, Dominican Republic on September 23, 2020 at 22:03 UTC. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 21:46:16 UTC | 2.0ml | 36 km SE of Mina, Nevada 38.181°, -117.788° | 9.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2020 at 21:46 UTC, a magnitude 2.0 earthquake struck 36 km SE of Mina, Nevada. It arrived roughly 8 hours after a larger magnitude 2.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 21:37:47 UTC | 3.2ml | 30 km NE of Ranchester, Wyoming 45.068°, -106.844° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:37 UTC on September 23, 2020, a magnitude 3.2 tremor occurred 30 km NE of Ranchester, Wyoming. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 20:59:35 UTC | 4.0mb | 199 km SSE of Sarangani, Philippines 3.715°, 126.101° | 58.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2020, worldwide seismic activity registered a magnitude 4.0 earthquake 199 km SSE of Sarangani, Philippines at 20:59 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 20:42:52 UTC | 4.6mb | 68 km SSW of Acajutla, El Salvador 13.029°, -90.081° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake 68 km SSW of Acajutla, El Salvador with origin time 20:42 UTC on September 23, 2020. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 19:58:22 UTC | 3.7ml | 240 km WSW of Adak, Alaska 51.468°, 179.951° | 19.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.7 earthquake 240 km WSW of Adak, Alaska came in on September 23, 2020 at 19:58 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 19:51:44 UTC | 2.2ml | 21 km NNE of P?hala, Hawaii 19.391°, -155.438° | 8.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 21 km NNE of P?hala, Hawaii with origin time 19:51 UTC on September 23, 2020. It arrived roughly 18 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 19:20:27 UTC | 2.2mb_lg | 6 km WNW of Hardtner, Kansas 37.032°, -98.721° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2020, worldwide seismic activity registered a magnitude 2.2 earthquake 6 km WNW of Hardtner, Kansas at 19:20 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 19:05:40 UTC | 2.2md | 2km SW of Lexington Hills, CA 37.156°, -121.987° | 11.7 km | 2 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 2km SW of Lexington Hills, CA came in on September 23, 2020 at 19:05 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 19:02:00 UTC | 2.0ml | 5 km ENE of Butte, Montana 46.018°, -112.469° | -2.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 5 km ENE of Butte, Montana at 19:02 UTC on September 23, 2020. This is the shallowest earthquake in the current dataset — a shallow crustal event. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 18:55:30 UTC | 4.1mb | 268 km WNW of Haveluloto, Tonga -20.568°, -177.713° | 525.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2020 at 18:55 UTC, a magnitude 4.1 earthquake struck 268 km WNW of Haveluloto, Tonga. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 18:28:26 UTC | 4.2mb | 250 km ENE of Lospalos, Timor Leste -7.298°, 128.910° | 108.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 250 km ENE of Lospalos, Timor Leste at 18:28 UTC on September 23, 2020. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 18:21:28 UTC | 2.2md | 2 km ESE of P?hala, Hawaii 19.196°, -155.452° | 35.3 km | - | - | - | Auto | USGS → |
A magnitude 2.2 seismic event took place 2 km ESE of P?hala, Hawaii on September 23, 2020 at 18:21 UTC. It arrived roughly 16 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 18:05:45 UTC | 2.4ml | 17 km WSW of Anchor Point, Alaska 59.688°, -152.097° | 55.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 23, 2020, worldwide seismic activity registered a magnitude 2.4 earthquake 17 km WSW of Anchor Point, Alaska at 18:05 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 17:21:06 UTC | 3.1ml | 9 km NNW of Kinney, Minnesota 47.597°, -92.764° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
September 23, 2020 brought a magnitude 3.1 earthquake 9 km NNW of Kinney, Minnesota, logged at 17:21 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 17:17:58 UTC | 4.2mb | Izu Islands, Japan region 32.525°, 141.462° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected in the Izu Islands, Japan region on September 23, 2020, with origin time 17:17 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 17:07:07 UTC | 2.8ml | 69 km N of Chickaloon, Alaska 62.417°, -148.504° | 37.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake 69 km N of Chickaloon, Alaska at 17:07 UTC on September 23, 2020. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-23 2020-09-23 17:03:00 UTC | 2.3ml | 22 km WNW of Stanley, Idaho 44.312°, -115.191° | 9.1 km | - | - | - | ✓ Reviewed | USGS → |
September 23, 2020 brought a magnitude 2.3 earthquake 22 km WNW of Stanley, Idaho, logged at 17:03 UTC. It arrived roughly 1 hours after a larger magnitude 2.4 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. | ||||||||
2020-09-23 2020-09-23 16:54:21 UTC | 2.4ml | 22 km WNW of Stanley, Idaho 44.320°, -115.186° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 22 km WNW of Stanley, Idaho with origin time 16:54 UTC on September 23, 2020. See the M2.4 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 September 23, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.