Earthquakes on September 13, 2021
312
EARTHQUAKES on September 13, 2021
24-hour UTC period · USGS data
205 km deep · 52 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
33
M3.0–3.9
22
M2.0–2.9
60
M1.0–1.9
190
Activity Summary
312
Total earthquakes
~250
Daily average
Elevated
Activity level
7
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.2
86 km NW of San Antonio de los Cobres, Argentina
05:18 UTC · 205.0 km deep
Felt by 52
5.8
223 km SE of Shing?, Japan
22:46 UTC · 370.0 km deep
Felt by 45
5.1
South Sandwich Islands region
14:11 UTC · 36.6 km deep
5.1
39 km ENE of Q?ch?n, Iran
04:02 UTC · 10.0 km deep
Felt by 13
5.1
South Sandwich Islands region
02:34 UTC · 47.9 km deep
5.1
South Sandwich Islands region
01:45 UTC · 35.0 km deep
5.0
South Sandwich Islands region
23:58 UTC · 35.0 km deep
4.9
South Sandwich Islands region
19:19 UTC · 35.0 km deep
Earthquake Map — September 13, 2021
All Earthquakes — September 13, 2021
Showing 30 of 122 (filtered from 312)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-09-13 2021-09-13 23:58:01 UTC | 5.0mb | South Sandwich Islands region -58.723°, -25.235° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 5.0 event was detected in the South Sandwich Islands region on September 13, 2021, with origin time 23:58 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 23:52:57 UTC | 3.3ml | 67 km SW of Nikolski, Alaska 52.473°, -169.498° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
September 13, 2021 brought a magnitude 3.3 earthquake 67 km SW of Nikolski, Alaska, logged at 23:52 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 23:33:34 UTC | 4.8mb | 28 km N of Hihifo, Tonga -15.698°, -173.823° | 59.2 km | - | - | - | ✓ Reviewed | USGS → |
On September 13, 2021 at 23:33 UTC, a magnitude 4.8 earthquake struck 28 km N of Hihifo, Tonga. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 23:27:30 UTC | 2.6ml | Rat Islands, Aleutian Islands, Alaska 50.196°, 178.600° | 20.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded near Rat Islands, Aleutian Islands, Alaska on September 13, 2021 at 23:27 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 23:22:32 UTC | 2.2ml | 58 km SSE of Sand Point, Alaska 54.821°, -160.297° | 25.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 58 km SSE of Sand Point, Alaska with origin time 23:22 UTC on September 13, 2021. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 23:17:08 UTC | 3.9md | 123 km NNE of Cruz Bay, U.S. Virgin Islands 19.266°, -64.151° | 35.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 13, 2021 at 23:17 UTC, a magnitude 3.9 earthquake struck 123 km NNE of Cruz Bay, U.S. Virgin Islands. This event falls inside the aftershock decay of a nearby magnitude 4.3 earthquake that occurred about 16 hours earlier. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 22:46:06 UTC | 5.8mww | 223 km SE of Shing?, Japan 32.478°, 137.857° | 370.0 km | 45 | II | green | ✓ Reviewed | USGS → |
A magnitude 5.8 earthquake was recorded 223 km SE of Shing?, Japan on September 13, 2021 at 22:46 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M5.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 22:17:13 UTC | 2.1ml | 42 km SSE of Denali National Park, Alaska 63.203°, -151.316° | 9.2 km | - | - | - | ✓ Reviewed | USGS → |
On September 13, 2021 at 22:17 UTC, a magnitude 2.1 earthquake struck 42 km SSE of Denali National Park, Alaska. Coming 19 hours after a magnitude 3.0 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. | ||||||||
2021-09-13 2021-09-13 22:06:37 UTC | 2.8ml | 223 km W of Adak, Alaska 51.561°, -179.835° | 78.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 223 km W of Adak, Alaska on September 13, 2021, with origin time 22:06 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 21:49:37 UTC | 3.8md | 121 km NE of Cruz Bay, U.S. Virgin Islands 19.168°, -64.046° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.8 earthquake was recorded 121 km NE of Cruz Bay, U.S. Virgin Islands on September 13, 2021 at 21:49 UTC. Coming 15 hours after a magnitude 4.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 21:07:04 UTC | 3.0ml | 89km ESE of Maneadero, B.C., MX 31.510°, -115.659° | 9.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.0 earthquake 89km ESE of Maneadero, B.C., MX with origin time 21:07 UTC on September 13, 2021. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 20:53:34 UTC | 2.6md | 6 km WSW of La Parguera, Puerto Rico 17.951°, -67.103° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:53 UTC on September 13, 2021, a magnitude 2.6 tremor occurred 6 km WSW of La Parguera, Puerto Rico. Coming 17 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 20:17:56 UTC | 2.2mh | 5km E of Vallejo, CA 38.112°, -122.177° | -0.1 km | - | - | - | ✓ Reviewed | USGS → |
On September 13, 2021, worldwide seismic activity registered a magnitude 2.2 earthquake 5km E of Vallejo, CA at 20:17 UTC. 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. | ||||||||
2021-09-13 2021-09-13 20:13:57 UTC | 4.1mb | 162 km SE of Pondaguitan, Philippines 5.356°, 127.247° | 17.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake 162 km SE of Pondaguitan, Philippines came in on September 13, 2021 at 20:13 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 19:19:51 UTC | 4.9mb | South Sandwich Islands region -59.964°, -26.723° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.9 earthquake in the South Sandwich Islands region came in on September 13, 2021 at 19:19 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.1 earthquake that occurred about 5 hours earlier. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 18:24:34 UTC | 2.5ml | 21 km WNW of Stanley, Idaho 44.297°, -115.178° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 21 km WNW of Stanley, Idaho on September 13, 2021, with origin time 18:24 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 18:19:16 UTC | 2.9ml | 103 km SSE of Sand Point, Alaska 54.512°, -159.758° | 22.7 km | - | - | - | ✓ Reviewed | USGS → |
On September 13, 2021, worldwide seismic activity registered a magnitude 2.9 earthquake 103 km SSE of Sand Point, Alaska at 18:19 UTC. It arrived roughly 15 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 18:17:31 UTC | 4.4mb | south of Panama 4.004°, -82.884° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected south of Panama on September 13, 2021, with origin time 18:17 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:58:45 UTC | 2.7ml | 79 km NW of Karluk, Alaska 57.972°, -155.549° | 0.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 13, 2021 at 17:58 UTC, a magnitude 2.7 earthquake struck 79 km NW of Karluk, Alaska. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:54:53 UTC | 2.0ml | 67 km N of Arctic Village, Alaska 68.722°, -145.804° | 19.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 67 km N of Arctic Village, Alaska at 17:54 UTC on September 13, 2021. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:53:47 UTC | 4.3mb | 53 km SE of Gizo, Solomon Islands -8.389°, 157.233° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 53 km SE of Gizo, Solomon Islands on September 13, 2021 at 17:53 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:46:55 UTC | 2.2ml | 6 km E of P?hala, Hawaii 19.213°, -155.419° | 33.2 km | - | - | - | Auto | USGS → |
On September 13, 2021 at 17:46 UTC, a magnitude 2.2 earthquake struck 6 km E of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 9 hours earlier. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:23:49 UTC | 3.1ml | 118 km SE of Perryville, Alaska 55.158°, -157.824° | 5.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 118 km SE of Perryville, Alaska on September 13, 2021, with origin time 17:23 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:18:28 UTC | 4.5mb | 102 km SSE of Lorengau, Papua New Guinea -2.938°, 147.480° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 102 km SSE of Lorengau, Papua New Guinea on September 13, 2021 at 17:18 UTC. It arrived roughly 1 hours after a larger magnitude 4.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:14:15 UTC | 2.1ml | 11 km SE of P?hala, Hawaii 19.117°, -155.409° | 31.6 km | - | - | - | Auto | USGS → |
September 13, 2021 brought a magnitude 2.1 earthquake 11 km SE of P?hala, Hawaii, logged at 17:14 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 9 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:13:34 UTC | 4.8mb | 60 km NE of Norsup, Vanuatu -15.724°, 167.841° | 141.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 earthquake was recorded 60 km NE of Norsup, Vanuatu on September 13, 2021 at 17:13 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 17:00:36 UTC | 4.6mb | Balleny Islands region -62.055°, 164.685° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.6 event was detected in the Balleny Islands region on September 13, 2021, with origin time 17:00 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 16:56:09 UTC | 2.2ml | 4 km ENE of P?hala, Hawaii 19.223°, -155.442° | 33.2 km | - | - | - | Auto | USGS → |
At 16:56 UTC on September 13, 2021, a magnitude 2.2 tremor occurred 4 km ENE of P?hala, Hawaii. Coming 8 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. | ||||||||
2021-09-13 2021-09-13 16:54:25 UTC | 4.3mb | 45 km WSW of Mendi, Papua New Guinea -6.293°, 143.274° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 13, 2021 brought a magnitude 4.3 earthquake 45 km WSW of Mendi, Papua New Guinea, logged at 16:54 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-13 2021-09-13 16:33:12 UTC | 4.4mb | 3 km SE of Cabana, Peru -15.673°, -70.294° | 211.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 3 km SE of Cabana, Peru came in on September 13, 2021 at 16:33 UTC. The event was offshore. 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 September 13, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.