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Earthquakes on September 10, 2021

316
EARTHQUAKES on September 10, 2021
24-hour UTC period · USGS data
10 km deep
Elevated activity
compared to daily average (~250/day)

Magnitude Breakdown

M5.0+
4
M4.0–4.9
39
M3.0–3.9
22
M2.0–2.9
74
M1.0–1.9
177

Activity Summary

316
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events

Geographic Breakdown

Top Countries (International)

Earthquake Map — September 10, 2021

Map showing earthquake epicenter at 20.00°, 0.00°

All Earthquakes — September 10, 2021

Showing 30 of 139 (filtered from 316)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
Time Mag Location Depth Felt MMIAlertStatusDetails
2021-09-10
2021-09-10 23:57:32 UTC
2.2ml
75 km ESE of Chignik, Alaska
55.987°, -157.329°
18.6 km---✓ ReviewedUSGS →
Reports of a magnitude 2.2 earthquake 75 km ESE of Chignik, Alaska came in on September 10, 2021 at 23:57 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 23:06:26 UTC
3.3ml
25 km NW of Stanley, Idaho
44.353°, -115.189°
10.0 km2--✓ ReviewedUSGS →
On September 10, 2021 at 23:06 UTC, a magnitude 3.3 earthquake struck 25 km NW of Stanley, Idaho. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 23:03:15 UTC
3.4ml
34 km SE of Mina, Nevada
38.168°, -117.839°
7.9 km2--✓ ReviewedUSGS →
A magnitude 3.4 seismic event took place 34 km SE of Mina, Nevada on September 10, 2021 at 23:03 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 22:56:28 UTC
3.9mb
284 km ESE of Attu Station, Alaska
51.906°, 177.077°
10.0 km-II-✓ ReviewedUSGS →
On September 10, 2021, worldwide seismic activity registered a magnitude 3.9 earthquake 284 km ESE of Attu Station, Alaska at 22:56 UTC. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 22:30:41 UTC
3.2ml
12 km WNW of Stanley, Idaho
44.272°, -115.074°
10.0 km4--✓ ReviewedUSGS →
The USGS recorded this magnitude 3.2 earthquake 12 km WNW of Stanley, Idaho at 22:30 UTC on September 10, 2021. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 22:25:35 UTC
2.0ml
Alaska Peninsula
57.805°, -156.360°
129.5 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 2.0 earthquake near Alaska Peninsula with origin time 22:25 UTC on September 10, 2021. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 22:19:30 UTC
2.2ml
165 km S of False Pass, Alaska
53.370°, -163.487°
17.4 km---✓ ReviewedUSGS →
A magnitude 2.2 seismic event took place 165 km S of False Pass, Alaska on September 10, 2021 at 22:19 UTC. It arrived roughly 13 hours after a larger magnitude 4.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 22:15:14 UTC
2.2ml
Unimak Island region, Alaska
53.315°, -163.455°
14.5 km---✓ ReviewedUSGS →
September 10, 2021 brought a magnitude 2.2 earthquake in the Unimak Island region, Alaska, logged at 22:15 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.1 earthquake that occurred about 13 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 22:13:02 UTC
2.6ml
15 km WSW of Cooper Landing, Alaska
60.421°, -150.080°
40.1 km2--✓ ReviewedUSGS →
The USGS recorded this magnitude 2.6 earthquake 15 km WSW of Cooper Landing, Alaska at 22:13 UTC on September 10, 2021. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 21:07:08 UTC
4.7mb
77 km W of San Antonio de los Cobres, Argentina
-24.098°, -67.070°
190.8 km---✓ ReviewedUSGS →
September 10, 2021 brought a magnitude 4.7 earthquake 77 km W of San Antonio de los Cobres, Argentina, logged at 21:07 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 20:45:14 UTC
2.0ml
44 km WSW of Tatitlek, Alaska
60.697°, -147.416°
3.0 km---✓ ReviewedUSGS →
On September 10, 2021, worldwide seismic activity registered a magnitude 2.0 earthquake 44 km WSW of Tatitlek, Alaska at 20:45 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 20:36:50 UTC
4.2mb
152 km WSW of Gorontalo, Indonesia
0.170°, 121.745°
180.4 km---✓ ReviewedUSGS →
On September 10, 2021 at 20:36 UTC, a magnitude 4.2 earthquake struck 152 km WSW of Gorontalo, Indonesia. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 20:31:41 UTC
2.5ml
26 km NW of Stanley, Idaho
44.364°, -115.204°
13.9 km---✓ ReviewedUSGS →
On September 10, 2021, worldwide seismic activity registered a magnitude 2.5 earthquake 26 km NW of Stanley, Idaho at 20:31 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 20:10:39 UTC
4.9mb
Kuril Islands
45.535°, 151.974°
10.0 km---✓ ReviewedUSGS →
At 20:10 UTC on September 10, 2021, a magnitude 4.9 tremor occurred near Kuril Islands. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 20:09:34 UTC
5.0mb
118 km ESE of Kokopo, Papua New Guinea
-4.696°, 153.279°
59.4 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 5.0 earthquake 118 km ESE of Kokopo, Papua New Guinea with origin time 20:09 UTC on September 10, 2021. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 20:00:50 UTC
4.8mb
Kuril Islands
45.510°, 151.841°
5.7 km---✓ ReviewedUSGS →
This magnitude 4.8 event was detected near Kuril Islands on September 10, 2021, with origin time 20:00 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 19:56:04 UTC
2.6ml
244 km SSE of King Cove, Alaska
53.086°, -160.681°
10.0 km---✓ ReviewedUSGS →
This magnitude 2.6 event was detected 244 km SSE of King Cove, Alaska on September 10, 2021, with origin time 19:56 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 19:43:38 UTC
2.0ml
15 km SSE of Sunnyside, Utah
39.425°, -110.305°
-1.6 km---✓ ReviewedUSGS →
A magnitude 2.0 earthquake was recorded 15 km SSE of Sunnyside, Utah on September 10, 2021 at 19:43 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 19:28:34 UTC
5.0mb
South Sandwich Islands region
-57.984°, -25.342°
35.2 km---✓ ReviewedUSGS →
On September 10, 2021, worldwide seismic activity registered a magnitude 5.0 earthquake in the South Sandwich Islands region at 19:28 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 19:24:36 UTC
4.4mb
167 km S of Lembar, Indonesia
-10.240°, 116.122°
44.2 km---✓ ReviewedUSGS →
Reports of a magnitude 4.4 earthquake 167 km S of Lembar, Indonesia came in on September 10, 2021 at 19:24 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 19:04:03 UTC
2.1ml
60 km NNW of Petersville, Alaska
63.026°, -151.001°
120.0 km---✓ ReviewedUSGS →
On September 10, 2021 at 19:04 UTC, a magnitude 2.1 earthquake struck 60 km NNW of Petersville, Alaska. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 18:51:47 UTC
2.1ml
30 km E of Pedro Bay, Alaska
59.740°, -153.579°
123.0 km---✓ ReviewedUSGS →
A magnitude 2.1 earthquake was recorded 30 km E of Pedro Bay, Alaska on September 10, 2021 at 18:51 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 18:35:28 UTC
3.1ml
31 km S of Atka, Alaska
51.920°, -174.280°
4.1 km---✓ ReviewedUSGS →
A magnitude 3.1 seismic event took place 31 km S of Atka, Alaska on September 10, 2021 at 18:35 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.
2021-09-10
2021-09-10 18:33:04 UTC
2.5ml
171 km S of False Pass, Alaska
53.311°, -163.440°
15.5 km---✓ ReviewedUSGS →
At 18:33 UTC on September 10, 2021, a magnitude 2.5 tremor occurred 171 km S of False Pass, Alaska. It arrived roughly 9 hours after a larger magnitude 4.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 18:32:28 UTC
4.0mb
Fiji region
-16.128°, -176.521°
380.1 km---✓ ReviewedUSGS →
A magnitude 4.0 earthquake was recorded in the Fiji region on September 10, 2021 at 18:32 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 18:04:08 UTC
2.1ml
50 km NNW of Yakutat, Alaska
59.963°, -140.095°
2.7 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 2.1 earthquake 50 km NNW of Yakutat, Alaska with origin time 18:04 UTC on September 10, 2021. Coming 10 hours after a magnitude 2.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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.
2021-09-10
2021-09-10 17:57:58 UTC
2.5ml
46 km NW of Toyah, Texas
31.570°, -104.179°
7.7 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.5 earthquake 46 km NW of Toyah, Texas at 17:57 UTC on September 10, 2021. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 17:50:04 UTC
4.8mb
South Sandwich Islands region
-58.059°, -25.319°
35.6 km---✓ ReviewedUSGS →
Reports of a magnitude 4.8 earthquake in the South Sandwich Islands region came in on September 10, 2021 at 17:50 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 17:49:41 UTC
3.4ml
126 km W of Nikolski, Alaska
53.035°, -170.732°
217.4 km---✓ ReviewedUSGS →
September 10, 2021 brought a magnitude 3.4 earthquake 126 km W of Nikolski, Alaska, logged at 17:49 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-09-10
2021-09-10 17:45:16 UTC
5.3mww
87 km ENE of Port-Olry, Vanuatu
-14.699°, 167.809°
6.9 km2--✓ ReviewedUSGS →
A magnitude 5.3 earthquake was recorded 87 km ENE of Port-Olry, Vanuatu on September 10, 2021 at 17:45 UTC. See the M5.3 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 10, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.