Earthquakes on September 11, 2020
322
EARTHQUAKES on September 11, 2020
24-hour UTC period · USGS data
LARGEST: M6.2 — 82 km NNE of Tocopilla, Chile
51 km deep · 149 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
27
M3.0–3.9
15
M2.0–2.9
54
M1.0–1.9
222
Activity Summary
322
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.2
82 km NNE of Tocopilla, Chile
07:35 UTC · 51.0 km deep
Felt by 149
5.0
southern Mid-Atlantic Ridge
23:54 UTC · 10.0 km deep
5.0
southern Mid-Atlantic Ridge
23:46 UTC · 10.0 km deep
5.0
16 km SSW of Tomakomai, Japan
22:13 UTC · 131.6 km deep
4.8
112 km ESE of Kokopo, Papua New Guinea
23:30 UTC · 60.2 km deep
4.7
266 km SSE of Attu Station, Alaska
04:44 UTC · 9.9 km deep
4.6
17 km ENE of Santa Cruz, Philippines
04:52 UTC · 76.5 km deep
Felt by 1
4.6
136 km ESE of Iquique, Chile
00:57 UTC · 124.0 km deep
Felt by 1
Earthquake Map — September 11, 2020
All Earthquakes — September 11, 2020
Showing 30 of 100 (filtered from 322)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-09-11 2020-09-11 23:54:12 UTC | 5.0mb | southern Mid-Atlantic Ridge -15.562°, -13.228° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.0 earthquake was recorded near southern Mid-Atlantic Ridge on September 11, 2020 at 23:54 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 23:46:04 UTC | 5.0mb | southern Mid-Atlantic Ridge -15.563°, -12.776° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake near southern Mid-Atlantic Ridge with origin time 23:46 UTC on September 11, 2020. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 23:43:22 UTC | 2.7ml | 68 km SE of Sand Point, Alaska 54.939°, -159.674° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 68 km SE of Sand Point, Alaska with origin time 23:43 UTC on September 11, 2020. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 23:37:15 UTC | 2.7ml | 87 km SE of Adak, Alaska 51.331°, -175.720° | 25.7 km | - | - | - | ✓ Reviewed | USGS → |
On September 11, 2020, worldwide seismic activity registered a magnitude 2.7 earthquake 87 km SE of Adak, Alaska at 23:37 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 23:34:11 UTC | 4.1mb | south of the Fiji Islands -24.143°, 179.796° | 503.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place south of the Fiji Islands on September 11, 2020 at 23:34 UTC. 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. | ||||||||
2020-09-11 2020-09-11 23:30:52 UTC | 4.8mb | 112 km ESE of Kokopo, Papua New Guinea -4.609°, 153.243° | 60.2 km | - | - | - | ✓ Reviewed | USGS → |
At 23:30 UTC on September 11, 2020, a magnitude 4.8 tremor occurred 112 km ESE of Kokopo, Papua New Guinea. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 23:07:58 UTC | 2.2ml | 73 km SSW of Sitka, Alaska 56.448°, -135.817° | 17.4 km | - | - | - | ✓ Reviewed | USGS → |
On September 11, 2020 at 23:07 UTC, a magnitude 2.2 earthquake struck 73 km SSW of Sitka, Alaska. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 23:04:39 UTC | 4.5mb | South Shetland Islands -62.346°, -58.500° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place near South Shetland Islands on September 11, 2020 at 23:04 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 22:59:29 UTC | 2.5ml | 8 km SE of Eureka Roadhouse, Alaska 61.877°, -147.067° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 11, 2020 at 22:59 UTC, a magnitude 2.5 earthquake struck 8 km SE of Eureka Roadhouse, Alaska. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 22:13:55 UTC | 5.0mb | 16 km SSW of Tomakomai, Japan 42.494°, 141.545° | 131.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 11, 2020, worldwide seismic activity registered a magnitude 5.0 earthquake 16 km SSW of Tomakomai, Japan at 22:13 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 21:57:23 UTC | 4.2mb | Bonin Islands, Japan region 28.871°, 139.031° | 482.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected in the Bonin Islands, Japan region on September 11, 2020, with origin time 21:57 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 21:41:35 UTC | 2.9ml | Central Alaska 62.301°, -150.454° | 14.7 km | 27 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place near Central Alaska on September 11, 2020 at 21:41 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 21:34:25 UTC | 3.3ml | 7 km E of Point MacKenzie, Alaska 61.348°, -149.832° | 36.4 km | 188 | II | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.3 earthquake 7 km E of Point MacKenzie, Alaska at 21:34 UTC on September 11, 2020. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 21:08:22 UTC | 4.4mb | 237 km SE of Shing?, Japan 32.236°, 137.804° | 377.2 km | - | - | - | ✓ Reviewed | USGS → |
At 21:08 UTC on September 11, 2020, a magnitude 4.4 tremor occurred 237 km SE of Shing?, Japan. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 21:01:07 UTC | 2.1ml | 52 km E of Juneau, Alaska 58.370°, -133.532° | 5.3 km | - | - | - | ✓ Reviewed | USGS → |
At 21:01 UTC on September 11, 2020, a magnitude 2.1 tremor occurred 52 km E of Juneau, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 20:49:03 UTC | 3.2ml | 21 km WNW of Stanley, Idaho 44.312°, -115.167° | 11.8 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.2 earthquake 21 km WNW of Stanley, Idaho came in on September 11, 2020 at 20:49 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 19:15:33 UTC | 3.2ml | 27 km SSE of Wright, Wyoming 43.529°, -105.332° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.2 seismic event took place 27 km SSE of Wright, Wyoming on September 11, 2020 at 19:15 UTC. 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. | ||||||||
2020-09-11 2020-09-11 19:05:55 UTC | 4.0mb | 84 km NNW of Sola, Vanuatu -13.171°, 167.248° | 217.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 11, 2020 at 19:05 UTC, a magnitude 4.0 earthquake struck 84 km NNW of Sola, Vanuatu. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 19:00:20 UTC | 2.2md | 6 km WSW of Guánica, Puerto Rico 17.951°, -66.962° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
September 11, 2020 brought a magnitude 2.2 earthquake 6 km WSW of Guánica, Puerto Rico, logged at 19:00 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.3 earthquake that occurred about 16 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 19:00:07 UTC | 2.2md | 5 km ENE of P?hala, Hawaii 19.215°, -155.430° | 34.1 km | - | - | - | Auto | USGS → |
On September 11, 2020, worldwide seismic activity registered a magnitude 2.2 earthquake 5 km ENE of P?hala, Hawaii at 19:00 UTC. Coming 14 hours after a magnitude 2.5 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. | ||||||||
2020-09-11 2020-09-11 18:58:16 UTC | 3.5ml | 103 km W of Adak, Alaska 51.834°, -178.136° | 16.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.5 earthquake 103 km W of Adak, Alaska with origin time 18:58 UTC on September 11, 2020. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 18:45:29 UTC | 2.3ml | 14km N of Castaic, CA 34.618°, -118.642° | 9.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 14km N of Castaic, CA with origin time 18:45 UTC on September 11, 2020. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 18:44:40 UTC | 2.0ml | 29 km SSE of Mina, Nevada 38.142°, -117.993° | 10.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 11, 2020, worldwide seismic activity registered a magnitude 2.0 earthquake 29 km SSE of Mina, Nevada at 18:44 UTC. It arrived roughly 3 hours after a larger magnitude 2.3 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. | ||||||||
2020-09-11 2020-09-11 17:52:10 UTC | 4.4mb | 63 km E of Kalemie, Democratic Republic of the Congo -5.857°, 29.757° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 63 km E of Kalemie, Democratic Republic of the Congo at 17:52 UTC on September 11, 2020. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 17:35:35 UTC | 2.3ml | 191 km WSW of Adak, Alaska 51.252°, -179.217° | 19.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 11, 2020, worldwide seismic activity registered a magnitude 2.3 earthquake 191 km WSW of Adak, Alaska at 17:35 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 17:16:57 UTC | 4.3mb | south of the Fiji Islands -25.567°, 179.602° | 490.4 km | - | - | - | ✓ Reviewed | USGS → |
On September 11, 2020 at 17:16 UTC, a magnitude 4.3 earthquake struck south of the Fiji Islands. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 16:58:27 UTC | 4.4mb | north of Ascension Island -2.436°, -12.344° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected north of Ascension Island on September 11, 2020, with origin time 16:58 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 16:47:14 UTC | 4.3mb | Carlsberg Ridge 6.633°, 60.255° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded near Carlsberg Ridge on September 11, 2020 at 16:47 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 16:30:43 UTC | 2.7ml | 33 km W of Chignik Lake, Alaska 56.292°, -159.292° | 120.5 km | - | - | - | ✓ Reviewed | USGS → |
At 16:30 UTC on September 11, 2020, a magnitude 2.7 tremor occurred 33 km W of Chignik Lake, Alaska. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-11 2020-09-11 16:26:48 UTC | 2.0ml | 52 km E of Juneau, Alaska 58.356°, -133.528° | 6.4 km | - | - | - | ✓ Reviewed | USGS → |
At 16:26 UTC on September 11, 2020, a magnitude 2.0 tremor occurred 52 km E of Juneau, Alaska. The event was offshore. See the M2.0 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 11, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.