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Earthquakes on March 10, 2023

500
EARTHQUAKES on March 10, 2023
24-hour UTC period · USGS data
160 km deep · 269 people felt it
Elevated activity
compared to daily average (~250/day)

Magnitude Breakdown

M5.0+
3
M4.0–4.9
30
M3.0–3.9
19
M2.0–2.9
83
M1.0–1.9
365

Activity Summary

500
Total earthquakes
~250
Daily average
Elevated
Activity level
3
M5.0+ events

Geographic Breakdown

Top Countries (International)

Earthquake Map — March 10, 2023

Map showing earthquake epicenter at 20.00°, 0.00°

All Earthquakes — March 10, 2023

Showing 30 of 135 (filtered from 500)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
Time Mag Location Depth Felt MMIAlertStatusDetails
2023-03-10
2023-03-10 23:39:52 UTC
3.1ml
89 km SW of Atka, Alaska
51.687°, -175.210°
35.0 km---✓ ReviewedUSGS →
Reports of a magnitude 3.1 earthquake 89 km SW of Atka, Alaska came in on March 10, 2023 at 23:39 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 23:19:44 UTC
3.7mb
97 km W of Adak, Alaska
51.852°, -178.052°
5.0 km---✓ ReviewedUSGS →
Reports of a magnitude 3.7 earthquake 97 km W of Adak, Alaska came in on March 10, 2023 at 23:19 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 3 hours earlier. The event was offshore. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 23:17:07 UTC
2.3ml
102 km W of Adak, Alaska
51.885°, -178.124°
5.0 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.3 earthquake 102 km W of Adak, Alaska at 23:17 UTC on March 10, 2023. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 3 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 22:35:24 UTC
2.3ml
5 km SW of Old Harbor, Alaska
57.160°, -153.367°
17.9 km---✓ ReviewedUSGS →
This magnitude 2.3 event was detected 5 km SW of Old Harbor, Alaska on March 10, 2023, with origin time 22:35 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 22:34:19 UTC
2.7ml
100 km W of Adak, Alaska
51.899°, -178.092°
5.0 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 2.7 earthquake 100 km W of Adak, Alaska with origin time 22:34 UTC on March 10, 2023. Coming 2 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 22:24:19 UTC
2.1ml
14 km S of Ophir, Colorado
37.729°, -107.819°
5.0 km---✓ ReviewedUSGS →
At 22:24 UTC on March 10, 2023, a magnitude 2.1 tremor occurred 14 km S of Ophir, Colorado. Coming 8 hours after a magnitude 3.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 22:21:56 UTC
2.2ml
44 km NW of Toyah, Texas
31.613°, -104.105°
6.5 km---✓ ReviewedUSGS →
On March 10, 2023, worldwide seismic activity registered a magnitude 2.2 earthquake 44 km NW of Toyah, Texas at 22:21 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 22:13:00 UTC
2.4ml
33 km E of Port Heiden, Alaska
56.904°, -158.081°
1.0 km---✓ ReviewedUSGS →
A magnitude 2.4 earthquake was recorded 33 km E of Port Heiden, Alaska on March 10, 2023 at 22:13 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 22:10:13 UTC
2.0ml
65 km SE of Adak, Alaska
51.429°, -176.020°
25.5 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 2.0 earthquake 65 km SE of Adak, Alaska with origin time 22:10 UTC on March 10, 2023. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 22:09:50 UTC
4.2mb
153 km ENE of Saipan, Northern Mariana Islands
15.938°, 146.976°
29.7 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.2 earthquake 153 km ENE of Saipan, Northern Mariana Islands at 22:09 UTC on March 10, 2023. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 21:47:21 UTC
2.1ml
36 km NNW of Toyah, Texas
31.601°, -103.975°
9.3 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.1 earthquake 36 km NNW of Toyah, Texas at 21:47 UTC on March 10, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 21:41:10 UTC
2.0ml
99 km W of Adak, Alaska
51.858°, -178.076°
5.1 km---✓ ReviewedUSGS →
On March 10, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 99 km W of Adak, Alaska at 21:41 UTC. It arrived roughly 1 hours after a larger magnitude 4.0 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.
2023-03-10
2023-03-10 21:34:24 UTC
2.3md
10km ESE of Point Arena, CA
38.879°, -123.593°
4.9 km3--✓ ReviewedUSGS →
On March 10, 2023 at 21:34 UTC, a magnitude 2.3 earthquake struck 10km ESE of Point Arena, CA. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 21:14:35 UTC
2.9ml
103 km W of Adak, Alaska
51.929°, -178.132°
8.4 km---✓ ReviewedUSGS →
On March 10, 2023, worldwide seismic activity registered a magnitude 2.9 earthquake 103 km W of Adak, Alaska at 21:14 UTC. Coming 1 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 21:11:53 UTC
2.0ml
91 km W of Adak, Alaska
51.871°, -177.966°
5.7 km---✓ ReviewedUSGS →
At 21:11 UTC on March 10, 2023, a magnitude 2.0 tremor occurred 91 km W of Adak, Alaska. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 21:10:23 UTC
3.5md
44 km NW of San Antonio, Puerto Rico
18.820°, -67.345°
86.0 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 3.5 earthquake 44 km NW of San Antonio, Puerto Rico with origin time 21:10 UTC on March 10, 2023. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 21:02:56 UTC
2.0ml
102 km W of Adak, Alaska
51.852°, -178.114°
4.8 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.0 earthquake 102 km W of Adak, Alaska at 21:02 UTC on March 10, 2023. Coming 1 hours after a magnitude 4.0 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 21:00:01 UTC
2.6ml
94 km W of Adak, Alaska
51.864°, -178.002°
6.5 km---✓ ReviewedUSGS →
This magnitude 2.6 event was detected 94 km W of Adak, Alaska on March 10, 2023, with origin time 21:00 UTC. It arrived roughly 1 hours after a larger magnitude 4.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:47:33 UTC
5.1mww
99 km WNW of Pizarro, Colombia
5.312°, -78.188°
24.3 km---✓ ReviewedUSGS →
A magnitude 5.1 earthquake was recorded 99 km WNW of Pizarro, Colombia on March 10, 2023 at 20:47 UTC. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:34:49 UTC
2.5ml
94 km W of Adak, Alaska
51.905°, -177.999°
6.8 km---✓ ReviewedUSGS →
A magnitude 2.5 earthquake was recorded 94 km W of Adak, Alaska on March 10, 2023 at 20:34 UTC. Coming 1 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:33:39 UTC
2.2ml
104 km W of Adak, Alaska
51.828°, -178.155°
-1.8 km---✓ ReviewedUSGS →
On March 10, 2023, worldwide seismic activity registered a magnitude 2.2 earthquake 104 km W of Adak, Alaska at 20:33 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 1 hours earlier. 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.
2023-03-10
2023-03-10 20:31:35 UTC
3.9mwr
5 km N of Sequndo, Colorado
37.170°, -104.728°
4.5 km14IVgreen✓ ReviewedUSGS →
On March 10, 2023, worldwide seismic activity registered a magnitude 3.9 earthquake 5 km N of Sequndo, Colorado at 20:31 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:31:14 UTC
4.0mb
93 km W of Adak, Alaska
51.823°, -177.988°
5.0 km-III-✓ ReviewedUSGS →
A magnitude 4.0 earthquake was recorded 93 km W of Adak, Alaska on March 10, 2023 at 20:31 UTC. In the 72 hours after this event, the USGS recorded 62 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:26:37 UTC
3.4ml
231 km W of Ferndale, California
40.547°, -126.996°
17.9 km2--✓ ReviewedUSGS →
On March 10, 2023, worldwide seismic activity registered a magnitude 3.4 earthquake 231 km W of Ferndale, California at 20:26 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:25:54 UTC
2.8ml
100 km W of Adak, Alaska
51.920°, -178.092°
5.0 km---✓ ReviewedUSGS →
This magnitude 2.8 event was detected 100 km W of Adak, Alaska on March 10, 2023, with origin time 20:25 UTC. Coming 2 hours after a magnitude 3.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:13:45 UTC
4.6mb
near the east coast of Honshu, Japan
35.703°, 140.109°
53.7 km41--✓ ReviewedUSGS →
This magnitude 4.6 event was detected near near the east coast of Honshu, Japan on March 10, 2023, with origin time 20:13 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:12:39 UTC
4.8mb
6 km NNE of Honch?, Japan
42.182°, 142.946°
58.3 km3--✓ ReviewedUSGS →
On March 10, 2023, worldwide seismic activity registered a magnitude 4.8 earthquake 6 km NNE of Honch?, Japan at 20:12 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 20:00:33 UTC
2.0ml
32 km WNW of Akhiok, Alaska
57.024°, -154.688°
40.3 km---✓ ReviewedUSGS →
This magnitude 2.0 event was detected 32 km WNW of Akhiok, Alaska on March 10, 2023, with origin time 20:00 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 19:57:09 UTC
4.5mb
south of the Fiji Islands
-23.635°, -179.477°
558.2 km---✓ ReviewedUSGS →
On March 10, 2023, worldwide seismic activity registered a magnitude 4.5 earthquake south of the Fiji Islands at 19:57 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-10
2023-03-10 19:33:08 UTC
2.2ml
Andreanof Islands, Aleutian Islands, Alaska
51.867°, -178.153°
6.3 km---✓ ReviewedUSGS →
At 19:33 UTC on March 10, 2023, a magnitude 2.2 tremor occurred near Andreanof Islands, Aleutian Islands, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 1 hours earlier. See the M2.2 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 March 10, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.