Earthquakes on March 8, 2023
500
EARTHQUAKES on March 8, 2023
24-hour UTC period · USGS data
40 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
38
M3.0–3.9
11
M2.0–2.9
87
M1.0–1.9
361
Activity Summary
500
Total earthquakes
~250
Daily average
Elevated
Activity level
3
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.8
54 km WSW of Panguna, Papua New Guinea
07:33 UTC · 40.0 km deep
5.6
115 km SE of Severo-Kuril’sk, Russia
06:03 UTC · 39.0 km deep
5.4
208 km NNE of Fais, Micronesia
13:43 UTC · 10.0 km deep
4.9
189 km SSE of Vilyuchinsk, Russia
16:10 UTC · 16.9 km deep
4.9
south of the Fiji Islands
08:34 UTC · 493.6 km deep
4.8
Vanuatu
22:14 UTC · 10.0 km deep
4.8
Prince Edward Islands region
15:28 UTC · 10.0 km deep
4.8
113 km ESE of Kokopo, Papua New Guinea
09:51 UTC · 51.4 km deep
Earthquake Map — March 8, 2023
All Earthquakes — March 8, 2023
Showing 30 of 139 (filtered from 500)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-03-08 2023-03-08 23:56:41 UTC | 2.0ml | 102 km W of Adak, Alaska 51.871°, -178.122° | 4.9 km | - | - | - | ✓ Reviewed | USGS → |
On March 8, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 102 km W of Adak, Alaska at 23:56 UTC. Coming 10 hours after a magnitude 3.2 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. | ||||||||
2023-03-08 2023-03-08 23:56:16 UTC | 4.4mb | 23 km SSE of Ikungi, Tanzania -5.337°, 34.832° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 23 km SSE of Ikungi, Tanzania on March 8, 2023 at 23:56 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 23:49:14 UTC | 2.4ml | 61 km SW of Karluk, Alaska 57.181°, -155.191° | 62.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 61 km SW of Karluk, Alaska on March 8, 2023, with origin time 23:49 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 23:48:26 UTC | 2.0ml | 102 km W of Adak, Alaska 51.878°, -178.121° | 4.9 km | - | - | - | ✓ Reviewed | USGS → |
At 23:48 UTC on March 8, 2023, a magnitude 2.0 tremor occurred 102 km W of Adak, Alaska. It arrived roughly 10 hours after a larger magnitude 3.2 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 23:41:49 UTC | 4.2mb | 165 km SSW of Lithakiá, Greece 36.479°, 19.803° | 38.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 165 km SSW of Lithakiá, Greece with origin time 23:41 UTC on March 8, 2023. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 23:37:12 UTC | 2.0ml | 11 km NE of P?hala, Hawaii 19.267°, -155.389° | 30.7 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.0 earthquake 11 km NE of P?hala, Hawaii with origin time 23:37 UTC on March 8, 2023. This event falls inside the aftershock decay of a nearby magnitude 3.6 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. | ||||||||
2023-03-08 2023-03-08 23:01:48 UTC | 3.6ml | 3 km SSW of P?hala, Hawaii 19.174°, -155.497° | 34.3 km | 7 | III | - | ✓ Reviewed | USGS → |
On March 8, 2023, worldwide seismic activity registered a magnitude 3.6 earthquake 3 km SSW of P?hala, Hawaii at 23:01 UTC. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 22:45:31 UTC | 2.0ml | 129 km ESE of Nikolski, Alaska 52.644°, -167.007° | 13.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 129 km ESE of Nikolski, Alaska at 22:45 UTC on March 8, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 22:42:47 UTC | 2.3md | 4 km SSW of Adjuntas, Puerto Rico 18.123°, -66.731° | 19.4 km | - | - | - | ✓ Reviewed | USGS → |
On March 8, 2023 at 22:42 UTC, a magnitude 2.3 earthquake struck 4 km SSW of Adjuntas, Puerto Rico. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 22:35:56 UTC | 2.0ml | 97 km W of Adak, Alaska 51.875°, -178.052° | 4.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 97 km W of Adak, Alaska on March 8, 2023, with origin time 22:35 UTC. Coming 9 hours after a magnitude 3.2 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. | ||||||||
2023-03-08 2023-03-08 22:27:19 UTC | 2.5ml | Andreanof Islands, Aleutian Islands, Alaska 51.870°, -178.148° | 9.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded near Andreanof Islands, Aleutian Islands, Alaska on March 8, 2023 at 22:27 UTC. Coming 9 hours after a magnitude 3.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 22:24:09 UTC | 4.1mb | off the east coast of the Kamchatka Peninsula, Russia 51.338°, 159.490° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake near off the east coast of the Kamchatka Peninsula, Russia came in on March 8, 2023 at 22:24 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 22:14:34 UTC | 4.8mb | Vanuatu -14.735°, 166.588° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.8 earthquake near Vanuatu at 22:14 UTC on March 8, 2023. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 22:05:35 UTC | 2.0ml | 102 km W of Adak, Alaska 51.890°, -178.123° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 102 km W of Adak, Alaska came in on March 8, 2023 at 22:05 UTC. It arrived roughly 8 hours after a larger magnitude 3.2 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. | ||||||||
2023-03-08 2023-03-08 21:56:44 UTC | 4.3mb | 193 km SE of Levuka, Fiji -19.437°, -179.542° | 519.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 193 km SE of Levuka, Fiji at 21:56 UTC on March 8, 2023. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 21:52:00 UTC | 2.5ml | 102 km W of Adak, Alaska 51.860°, -178.125° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 102 km W of Adak, Alaska with origin time 21:52 UTC on March 8, 2023. It arrived roughly 8 hours after a larger magnitude 3.2 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. | ||||||||
2023-03-08 2023-03-08 21:50:55 UTC | 2.0ml | Andreanof Islands, Aleutian Islands, Alaska 51.866°, -177.977° | 5.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place near Andreanof Islands, Aleutian Islands, Alaska on March 8, 2023 at 21:50 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 8 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 21:39:31 UTC | 3.4md | 120 km NNE of Vieques, Puerto Rico 19.406°, -65.340° | 39.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.4 event was detected 120 km NNE of Vieques, Puerto Rico on March 8, 2023, with origin time 21:39 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 21:37:02 UTC | 3.4md | 145 km NNE of Vieques, Puerto Rico 19.654°, -65.357° | 42.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.4 earthquake 145 km NNE of Vieques, Puerto Rico at 21:37 UTC on March 8, 2023. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 21:22:18 UTC | 2.1ml | 103 km W of Adak, Alaska 51.873°, -178.139° | 4.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 103 km W of Adak, Alaska on March 8, 2023 at 21:22 UTC. Coming 7 hours after a magnitude 3.2 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. | ||||||||
2023-03-08 2023-03-08 20:45:51 UTC | 2.0ml | 73 km SE of King Cove, Alaska 54.621°, -161.469° | 15.5 km | - | - | - | ✓ Reviewed | USGS → |
March 8, 2023 brought a magnitude 2.0 earthquake 73 km SE of King Cove, Alaska, logged at 20:45 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 19:47:34 UTC | 4.6mb | Rota region, Northern Mariana Islands 14.188°, 146.731° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
March 8, 2023 brought a magnitude 4.6 earthquake in the Rota region, Northern Mariana Islands, logged at 19:47 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 18:50:15 UTC | 2.6ml | 202 km SE of Chignik, Alaska 54.883°, -156.387° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 202 km SE of Chignik, Alaska at 18:50 UTC on March 8, 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. | ||||||||
2023-03-08 2023-03-08 18:32:20 UTC | 4.5mb | 70 km SSW of Yonakuni, Japan 23.927°, 122.631° | 28.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake 70 km SSW of Yonakuni, Japan with origin time 18:32 UTC on March 8, 2023. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 18:31:05 UTC | 2.1ml | 101 km W of Adak, Alaska 51.866°, -178.108° | 5.6 km | - | - | - | ✓ Reviewed | USGS → |
March 8, 2023 brought a magnitude 2.1 earthquake 101 km W of Adak, Alaska, logged at 18:31 UTC. It arrived roughly 5 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 18:30:45 UTC | 4.2mb | 25 km NNW of Malfa, Italy 38.776°, 14.679° | 287.6 km | - | - | - | ✓ Reviewed | USGS → |
On March 8, 2023, worldwide seismic activity registered a magnitude 4.2 earthquake 25 km NNW of Malfa, Italy at 18:30 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 18:23:42 UTC | 2.0ml | 97 km W of Adak, Alaska 51.857°, -178.054° | 2.8 km | - | - | - | ✓ Reviewed | USGS → |
On March 8, 2023 at 18:23 UTC, a magnitude 2.0 earthquake struck 97 km W of Adak, Alaska. It arrived roughly 4 hours after a larger magnitude 3.2 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 18:11:05 UTC | 2.4md | Island of Hawaii, Hawaii 19.160°, -155.456° | 30.8 km | - | - | - | Auto | USGS → |
A magnitude 2.4 seismic event took place near Island of Hawaii, Hawaii on March 8, 2023 at 18:11 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 17:45:33 UTC | 2.8ml | 40 km WNW of Akhiok, Alaska 57.023°, -154.816° | 56.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake 40 km WNW of Akhiok, Alaska at 17:45 UTC on March 8, 2023. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-08 2023-03-08 17:27:37 UTC | 2.0ml | 104 km W of Adak, Alaska 51.864°, -178.151° | 4.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 104 km W of Adak, Alaska on March 8, 2023 at 17:27 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 4 hours earlier. 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. | ||||||||
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 8, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.