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Earthquakes on March 27, 2023

337
EARTHQUAKES on March 27, 2023
24-hour UTC period · USGS data
79 km deep · 5 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
7
M2.0–2.9
61
M1.0–1.9
236

Activity Summary

337
Total earthquakes
~250
Daily average
Elevated
Activity level
3
M5.0+ events

Geographic Breakdown

Earthquake Map — March 27, 2023

Map showing earthquake epicenter at 20.00°, 0.00°

All Earthquakes — March 27, 2023

Showing 30 of 101 (filtered from 337)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
Time Mag Location Depth Felt MMIAlertStatusDetails
2023-03-27
2023-03-27 23:36:27 UTC
3.3md
90 km N of Charlotte Amalie, U.S. Virgin Islands
19.162°, -64.941°
38.9 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 3.3 earthquake 90 km N of Charlotte Amalie, U.S. Virgin Islands at 23:36 UTC on March 27, 2023. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 23:17:27 UTC
4.2mb
Fiji region
-17.295°, -176.955°
403.6 km---✓ ReviewedUSGS →
Reports of a magnitude 4.2 earthquake in the Fiji region came in on March 27, 2023 at 23:17 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.
2023-03-27
2023-03-27 22:33:17 UTC
2.8ml
98 km W of Adak, Alaska
51.859°, -178.059°
7.4 km---✓ ReviewedUSGS →
A magnitude 2.8 earthquake was recorded 98 km W of Adak, Alaska on March 27, 2023 at 22:33 UTC. In the 72 hours after this event, the USGS recorded 7 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 22:32:08 UTC
2.1ml
4 km WSW of Dutch Harbor, Alaska
53.876°, -166.601°
4.7 km---✓ ReviewedUSGS →
March 27, 2023 brought a magnitude 2.1 earthquake 4 km WSW of Dutch Harbor, Alaska, logged at 22:32 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 7 hours earlier. 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.
2023-03-27
2023-03-27 22:19:15 UTC
6.2mww
Solomon Islands
-8.232°, 158.912°
79.0 km5Vgreen✓ ReviewedUSGS →
On March 27, 2023 at 22:19 UTC, a magnitude 6.2 earthquake struck near Solomon Islands. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on March 27, 2023. See the M6.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 22:08:57 UTC
4.4mb
12 km N of Jordán, Colombia
6.843°, -73.095°
152.7 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.4 earthquake 12 km N of Jordán, Colombia at 22:08 UTC on March 27, 2023. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 22:08:50 UTC
2.3md
0 km NE of Magas Arriba, Puerto Rico
18.019°, -66.767°
15.3 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.3 earthquake 0 km NE of Magas Arriba, Puerto Rico at 22:08 UTC on March 27, 2023. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 22:03:15 UTC
2.1md
6km SSW of Markleeville, CA
38.635°, -119.820°
1.0 km---✓ ReviewedUSGS →
Reports of a magnitude 2.1 earthquake 6km SSW of Markleeville, CA came in on March 27, 2023 at 22:03 UTC. 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.
2023-03-27
2023-03-27 21:57:46 UTC
2.1md
4 km WSW of Guánica, Puerto Rico
17.958°, -66.952°
5.9 km---✓ ReviewedUSGS →
At 21:57 UTC on March 27, 2023, a magnitude 2.1 tremor occurred 4 km WSW of Guánica, Puerto Rico. It arrived roughly 7 hours after a larger magnitude 2.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 21:56:22 UTC
2.1ml
233 km W of Adak, Alaska
51.744°, 179.980°
8.8 km---✓ ReviewedUSGS →
On March 27, 2023 at 21:56 UTC, a magnitude 2.1 earthquake struck 233 km W of Adak, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 21:42:07 UTC
2.5ml
15 km S of Fern Forest, Hawaii
19.330°, -155.128°
5.5 km---✓ ReviewedUSGS →
A magnitude 2.5 earthquake was recorded 15 km S of Fern Forest, Hawaii on March 27, 2023 at 21:42 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 21:14:58 UTC
2.6md
31km WNW of Petrolia, CA
40.416°, -124.626°
24.3 km---✓ ReviewedUSGS →
March 27, 2023 brought a magnitude 2.6 earthquake 31km WNW of Petrolia, CA, logged at 21:14 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 21:10:11 UTC
2.7md
9 km S of Culebra, Puerto Rico
18.220°, -65.299°
10.4 km---✓ ReviewedUSGS →
On March 27, 2023, worldwide seismic activity registered a magnitude 2.7 earthquake 9 km S of Culebra, Puerto Rico at 21:10 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 20:56:08 UTC
2.1ml
Kodiak Island region, Alaska
57.362°, -153.388°
51.8 km---✓ ReviewedUSGS →
A magnitude 2.1 earthquake was recorded in the Kodiak Island region, Alaska on March 27, 2023 at 20:56 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 20:49:12 UTC
2.4ml
63 km NNW of Akutan, Alaska
54.687°, -166.020°
157.5 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.4 earthquake 63 km NNW of Akutan, Alaska at 20:49 UTC on March 27, 2023. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 20:21:43 UTC
2.4ml
28 km SSW of False Pass, Alaska
54.617°, -163.577°
97.3 km---✓ ReviewedUSGS →
This magnitude 2.4 event was detected 28 km SSW of False Pass, Alaska on March 27, 2023, with origin time 20:21 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 20:13:14 UTC
4.5mb
45 km NE of Santa Rosa, Peru
-10.603°, -74.624°
123.3 km---✓ ReviewedUSGS →
A magnitude 4.5 earthquake was recorded 45 km NE of Santa Rosa, Peru on March 27, 2023 at 20:13 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 19:51:01 UTC
4.4mb
168 km SE of Fakfak, Indonesia
-3.975°, 133.402°
10.0 km---✓ ReviewedUSGS →
This magnitude 4.4 event was detected 168 km SE of Fakfak, Indonesia on March 27, 2023, with origin time 19:51 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 19:35:15 UTC
4.2mb
Fiji region
-19.480°, -177.482°
550.3 km---✓ ReviewedUSGS →
A magnitude 4.2 seismic event took place in the Fiji region on March 27, 2023 at 19:35 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.
2023-03-27
2023-03-27 18:20:35 UTC
4.7mb
Lake Edward region, Congo-Uganda
-0.662°, 29.304°
14.8 km21--✓ ReviewedUSGS →
The USGS recorded this magnitude 4.7 earthquake in the Lake Edward region, Congo-Uganda at 18:20 UTC on March 27, 2023. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 17:44:25 UTC
2.4md
6 km SW of La Parguera, Puerto Rico
17.935°, -67.096°
10.3 km---✓ ReviewedUSGS →
March 27, 2023 brought a magnitude 2.4 earthquake 6 km SW of La Parguera, Puerto Rico, logged at 17:44 UTC. Coming 3 hours after a magnitude 2.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 17:41:44 UTC
4.4mb
Kermadec Islands region
-29.032°, -176.787°
10.0 km---✓ ReviewedUSGS →
Reports of a magnitude 4.4 earthquake in the Kermadec Islands region came in on March 27, 2023 at 17:41 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 17:37:36 UTC
4.7mb
South Sandwich Islands region
-56.167°, -27.369°
115.3 km---✓ ReviewedUSGS →
This magnitude 4.7 event was detected in the South Sandwich Islands region on March 27, 2023, with origin time 17:37 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 17:08:56 UTC
2.2ml
1 km SSE of P?hala, Hawaii
19.188°, -155.470°
28.7 km---AutoUSGS →
On March 27, 2023 at 17:08 UTC, a magnitude 2.2 earthquake struck 1 km SSE of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.2 earthquake that occurred about 1 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 17:08:50 UTC
2.0ml
16 km W of Clam Gulch, Alaska
60.205°, -151.680°
63.4 km---✓ ReviewedUSGS →
A magnitude 2.0 seismic event took place 16 km W of Clam Gulch, Alaska on March 27, 2023 at 17:08 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 17:05:56 UTC
2.6ml
Gulf of Alaska
56.874°, -148.296°
10.0 km---✓ ReviewedUSGS →
A magnitude 2.6 seismic event took place near Gulf of Alaska on March 27, 2023 at 17:05 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 17:00:06 UTC
2.3md
2km ESE of The Geysers, CA
38.772°, -122.735°
1.8 km2--✓ ReviewedUSGS →
A magnitude 2.3 earthquake was recorded 2km ESE of The Geysers, CA on March 27, 2023 at 17:00 UTC. In the 72 hours after this event, the USGS recorded 6 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 16:57:52 UTC
2.1ml
Island of Hawaii, Hawaii
19.367°, -155.024°
7.9 km---✓ ReviewedUSGS →
A magnitude 2.1 seismic event took place near Island of Hawaii, Hawaii on March 27, 2023 at 16:57 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 16:57:24 UTC
2.7ml
75 km SSE of King Cove, Alaska
54.483°, -161.700°
35.0 km---✓ ReviewedUSGS →
At 16:57 UTC on March 27, 2023, a magnitude 2.7 tremor occurred 75 km SSE of King Cove, Alaska. Coming 1 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-27
2023-03-27 16:34:03 UTC
2.0ml
119 km W of Adak, Alaska
51.687°, -178.339°
85.0 km---✓ ReviewedUSGS →
March 27, 2023 brought a magnitude 2.0 earthquake 119 km W of Adak, Alaska, logged at 16:34 UTC. 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 March 27, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.