Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2023-03-28 2023-03-28 23:50:49 UTC	2.2ml	49 km N of Larsen Bay, Alaska 57.974°, -153.819°	46.9 km	-	-	-	✓ Reviewed	USGS →
On March 28, 2023 at 23:50 UTC, a magnitude 2.2 earthquake struck 49 km N of Larsen Bay, Alaska. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 23:48:45 UTC	3.9mb	3 km WNW of Sano, Japan 36.331°, 139.553°	133.6 km	-	-	-	✓ Reviewed	USGS →
On March 28, 2023 at 23:48 UTC, a magnitude 3.9 earthquake struck 3 km WNW of Sano, Japan. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 23:28:48 UTC	2.8ml	44 km ESE of Adak, Alaska 51.756°, -176.014°	77.7 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.8 earthquake was recorded 44 km ESE of Adak, Alaska on March 28, 2023 at 23:28 UTC. Coming 7 hours after a magnitude 3.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 22:57:24 UTC	2.6ml	12 km E of Wright, Wyoming 43.733°, -105.334°	0.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.6 earthquake 12 km E of Wright, Wyoming at 22:57 UTC on March 28, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 22:52:09 UTC	2.2ml	19 km SSE of Funny River, Alaska 60.349°, -150.596°	34.7 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.2 earthquake was recorded 19 km SSE of Funny River, Alaska on March 28, 2023 at 22:52 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 22:25:10 UTC	4.5mb	South Sandwich Islands region -56.009°, -27.337°	114.5 km	-	-	-	✓ Reviewed	USGS →
March 28, 2023 brought a magnitude 4.5 earthquake in the South Sandwich Islands region, logged at 22:25 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 22:21:00 UTC	2.7md	6 km NNE of Lluveras, Puerto Rico 18.093°, -66.886°	18.7 km	1	-	-	✓ Reviewed	USGS →
At 22:21 UTC on March 28, 2023, a magnitude 2.7 tremor occurred 6 km NNE of Lluveras, Puerto Rico. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 22:13:14 UTC	2.3ml	30 km E of Port Heiden, Alaska 56.903°, -158.136°	0.3 km	-	-	-	✓ Reviewed	USGS →
On March 28, 2023 at 22:13 UTC, a magnitude 2.3 earthquake struck 30 km E of Port Heiden, Alaska. 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.
2023-03-28 2023-03-28 21:52:45 UTC	4.7mwr	2 km NNW of Montagano, Italy 41.666°, 14.665°	7.4 km	41	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.7 earthquake 2 km NNW of Montagano, Italy at 21:52 UTC on March 28, 2023. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 21:50:00 UTC	4.0mb	153 km NNE of Tobelo, Indonesia 3.062°, 128.405°	214.6 km	-	-	-	✓ Reviewed	USGS →
March 28, 2023 brought a magnitude 4.0 earthquake 153 km NNE of Tobelo, Indonesia, logged at 21:50 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 21:35:17 UTC	2.1ml	20 km N of Susitna, Alaska 61.728°, -150.482°	51.5 km	-	-	-	✓ Reviewed	USGS →
At 21:35 UTC on March 28, 2023, a magnitude 2.1 tremor occurred 20 km N of Susitna, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 21:12:20 UTC	2.3ml	30 km SW of Glacier View, Alaska 61.599°, -148.024°	1.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.3 earthquake was recorded 30 km SW of Glacier View, Alaska on March 28, 2023 at 21:12 UTC. 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.
2023-03-28 2023-03-28 20:30:11 UTC	4.2mb	Kermadec Islands region -30.404°, -176.670°	13.4 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.2 earthquake in the Kermadec Islands region with origin time 20:30 UTC on March 28, 2023. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 20:11:23 UTC	2.4md	1 km SW of Guayanilla, Puerto Rico 18.011°, -66.799°	16.4 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.4 earthquake 1 km SW of Guayanilla, Puerto Rico came in on March 28, 2023 at 20:11 UTC. It arrived roughly 15 hours after a larger magnitude 2.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 19:27:07 UTC	4.6mb	110 km NE of Tobelo, Indonesia 2.345°, 128.793°	35.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.6 earthquake 110 km NE of Tobelo, Indonesia came in on March 28, 2023 at 19:27 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 19:03:37 UTC	4.4mb	south of the Kermadec Islands -33.075°, -179.084°	10.0 km	-	-	-	✓ Reviewed	USGS →
On March 28, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake south of the Kermadec Islands at 19:03 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 18:58:18 UTC	2.5md	15km W of Brooktrails, CA 39.455°, -123.556°	-0.5 km	1	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.5 earthquake 15km W of Brooktrails, CA at 18:58 UTC on March 28, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 18:48:14 UTC	4.2mb	near the west coast of Honshu, Japan 37.502°, 137.261°	3.0 km	-	-	-	✓ Reviewed	USGS →
On March 28, 2023, worldwide seismic activity registered a magnitude 4.2 earthquake near near the west coast of Honshu, Japan at 18:48 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 18:47:32 UTC	4.2mb	Kuril Islands 47.561°, 153.730°	42.3 km	-	-	-	✓ Reviewed	USGS →
At 18:47 UTC on March 28, 2023, a magnitude 4.2 tremor occurred near Kuril Islands. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 18:41:14 UTC	2.1ml	14 km ENE of P?hala, Hawaii 19.274°, -155.366°	0.8 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.1 earthquake 14 km ENE of P?hala, Hawaii with origin time 18:41 UTC on March 28, 2023. It arrived roughly 15 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. 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.
2023-03-28 2023-03-28 18:31:49 UTC	2.1ml	34 km W of Cantwell, Alaska 63.442°, -149.623°	102.8 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.1 earthquake 34 km W of Cantwell, Alaska at 18:31 UTC on March 28, 2023. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 18:00:48 UTC	4.5mb	Kermadec Islands, New Zealand -30.494°, -177.733°	51.8 km	-	-	-	✓ Reviewed	USGS →
On March 28, 2023 at 18:00 UTC, a magnitude 4.5 earthquake struck near Kermadec Islands, New Zealand. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 17:50:15 UTC	2.1ml	Nevada 41.538°, -118.807°	0.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.1 event was detected near Nevada on March 28, 2023, with origin time 17:50 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 17:48:27 UTC	4.3mb	56 km SW of Lata, Solomon Islands -11.081°, 165.424°	34.9 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.3 earthquake 56 km SW of Lata, Solomon Islands at 17:48 UTC on March 28, 2023. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 17:38:14 UTC	2.3ml	51 km SSW of Denio, Nevada 41.542°, -118.784°	4.2 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.3 earthquake 51 km SSW of Denio, Nevada with origin time 17:38 UTC on March 28, 2023. 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.
2023-03-28 2023-03-28 17:32:12 UTC	2.0ml	62 km ESE of Denali National Park, Alaska 63.279°, -150.625°	125.1 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.0 earthquake 62 km ESE of Denali National Park, Alaska came in on March 28, 2023 at 17:32 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 17:13:40 UTC	4.5mb	near the coast of Venezuela 12.617°, -70.991°	47.6 km	2	-	-	✓ Reviewed	USGS →
A magnitude 4.5 earthquake was recorded near near the coast of Venezuela on March 28, 2023 at 17:13 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 17:05:56 UTC	4.5mb	Southern Iran 30.279°, 51.785°	10.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.5 earthquake near Southern Iran with origin time 17:05 UTC on March 28, 2023. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 16:27:59 UTC	3.3ml	38 km E of Adak, Alaska 51.827°, -176.085°	80.2 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 3.3 earthquake 38 km E of Adak, Alaska at 16:27 UTC on March 28, 2023. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-03-28 2023-03-28 16:09:46 UTC	2.0ml	55 km S of Whites City, New Mexico 31.676°, -104.368°	5.8 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.0 seismic event took place 55 km S of Whites City, New Mexico on March 28, 2023 at 16:09 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 28, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.

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