Earthquakes on March 11, 2023
500
EARTHQUAKES on March 11, 2023
24-hour UTC period · USGS data
LARGEST: M5.5 — 126 km N of Ba, Fiji
10 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
35
M3.0–3.9
10
M2.0–2.9
75
M1.0–1.9
377
Activity Summary
500
Total earthquakes
~250
Daily average
Elevated
Activity level
3
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.5
126 km N of Ba, Fiji
13:29 UTC · 10.0 km deep
5.3
39 km SSE of Singkil, Indonesia
04:03 UTC · 44.5 km deep
Felt by 4
5.2
121 km N of Ba, Fiji
18:21 UTC · 10.0 km deep
4.9
86 km WNW of Yomitan, Japan
23:39 UTC · 98.5 km deep
Felt by 3
4.9
55 km NW of Pizarro, Colombia
21:12 UTC · 10.0 km deep
4.8
229 km ENE of Georgetown, Saint Helena
14:50 UTC · 10.0 km deep
4.7
8 km NW of Rust?q, Afghanistan
18:24 UTC · 14.6 km deep
4.7
40 km SSE of Quepos, Costa Rica
17:08 UTC · 10.5 km deep
Earthquake Map — March 11, 2023
All Earthquakes — March 11, 2023
Showing 30 of 123 (filtered from 500)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-03-11 2023-03-11 23:59:26 UTC | 2.0md | 5 km SSW of P?hala, Hawaii 19.154°, -155.495° | 33.3 km | - | - | - | Auto | USGS → |
At 23:59 UTC on March 11, 2023, a magnitude 2.0 tremor occurred 5 km SSW of P?hala, Hawaii. Coming 14 hours after a magnitude 2.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 23:53:03 UTC | 2.4ml | 6 km NW of Fox River, Alaska 59.890°, -151.046° | 54.9 km | - | - | - | ✓ Reviewed | USGS → |
On March 11, 2023 at 23:53 UTC, a magnitude 2.4 earthquake struck 6 km NW of Fox River, Alaska. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 23:41:33 UTC | 4.1mb | 50 km E of Farkh?r, Afghanistan 36.490°, 70.412° | 210.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake 50 km E of Farkh?r, Afghanistan with origin time 23:41 UTC on March 11, 2023. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 23:39:15 UTC | 4.9mb | 86 km WNW of Yomitan, Japan 26.676°, 126.936° | 98.5 km | 3 | - | - | ✓ Reviewed | USGS → |
On March 11, 2023, worldwide seismic activity registered a magnitude 4.9 earthquake 86 km WNW of Yomitan, Japan at 23:39 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 23:36:25 UTC | 2.3ml | 54 km NNE of Kobuk, Alaska 67.324°, -156.214° | 4.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 54 km NNE of Kobuk, Alaska came in on March 11, 2023 at 23:36 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. | ||||||||
2023-03-11 2023-03-11 22:56:47 UTC | 4.4mb | 37 km S of Iztapa, Guatemala 13.598°, -90.688° | 60.8 km | 1 | - | - | ✓ Reviewed | USGS → |
March 11, 2023 brought a magnitude 4.4 earthquake 37 km S of Iztapa, Guatemala, logged at 22:56 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 22:47:25 UTC | 2.0ml | Gulf of Alaska 59.160°, -144.825° | 30.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake near Gulf of Alaska came in on March 11, 2023 at 22:47 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 22:41:14 UTC | 2.0ml | 4km SW of Newport Beach, CA 33.598°, -117.963° | 13.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 4km SW of Newport Beach, CA at 22:41 UTC on March 11, 2023. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 22:41:12 UTC | 2.4ml | 55 km W of Tatitlek, Alaska 60.941°, -147.686° | 4.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 earthquake was recorded 55 km W of Tatitlek, Alaska on March 11, 2023 at 22:41 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. | ||||||||
2023-03-11 2023-03-11 22:27:16 UTC | 2.0md | 6 km S of P?hala, Hawaii 19.145°, -155.475° | 31.0 km | - | - | - | Auto | USGS → |
A magnitude 2.0 seismic event took place 6 km S of P?hala, Hawaii on March 11, 2023 at 22:27 UTC. It arrived roughly 12 hours after a larger magnitude 2.3 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. | ||||||||
2023-03-11 2023-03-11 22:24:14 UTC | 2.7ml | 99 km W of Adak, Alaska 51.846°, -178.080° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 99 km W of Adak, Alaska with origin time 22:24 UTC on March 11, 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 M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 22:09:46 UTC | 2.3md | 3km W of Cobb, CA 38.821°, -122.762° | 2.5 km | 1 | - | - | ✓ Reviewed | USGS → |
On March 11, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake 3km W of Cobb, CA at 22:09 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. | ||||||||
2023-03-11 2023-03-11 22:02:02 UTC | 2.4md | 12km SSE of Rio Dell, CA 40.400°, -124.056° | 27.0 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 12km SSE of Rio Dell, CA on March 11, 2023, with origin time 22:02 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 22:00:10 UTC | 2.0ml | 102 km W of Adak, Alaska 51.865°, -178.124° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
March 11, 2023 brought a magnitude 2.0 earthquake 102 km W of Adak, Alaska, logged at 22:00 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 2 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 21:50:23 UTC | 3.1ml | 5 km SW of Volcano, Hawaii 19.410°, -155.267° | 0.9 km | 9 | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 5 km SW of Volcano, Hawaii on March 11, 2023, with origin time 21:50 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. | ||||||||
2023-03-11 2023-03-11 21:47:42 UTC | 2.0ml | 68 km ENE of Adak, Alaska 52.202°, -175.793° | 120.8 km | - | - | - | ✓ Reviewed | USGS → |
On March 11, 2023 at 21:47 UTC, a magnitude 2.0 earthquake struck 68 km ENE of Adak, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 21:26:23 UTC | 4.5mb | 73 km E of Luganville, Vanuatu -15.556°, 167.844° | 128.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake 73 km E of Luganville, Vanuatu at 21:26 UTC on March 11, 2023. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 21:23:25 UTC | 4.6mb | southern Mid-Atlantic Ridge -45.841°, -13.336° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
March 11, 2023 brought a magnitude 4.6 earthquake near southern Mid-Atlantic Ridge, logged at 21:23 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 21:12:00 UTC | 4.9mb | 55 km NW of Pizarro, Colombia 5.364°, -77.655° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:12 UTC on March 11, 2023, a magnitude 4.9 tremor occurred 55 km NW of Pizarro, Colombia. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 20:58:13 UTC | 2.1ml | 71 km SW of Skwentna, Alaska 61.545°, -152.372° | 131.8 km | - | - | - | ✓ Reviewed | USGS → |
On March 11, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 71 km SW of Skwentna, Alaska at 20:58 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 20:45:28 UTC | 3.0ml | 96 km W of Adak, Alaska 51.841°, -178.028° | 3.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.0 earthquake 96 km W of Adak, Alaska came in on March 11, 2023 at 20:45 UTC. 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 M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 20:41:57 UTC | 4.3mb | 167 km SE of San Jose Village, Northern Mariana Islands 13.968°, 146.787° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake 167 km SE of San Jose Village, Northern Mariana Islands with origin time 20:41 UTC on March 11, 2023. This event falls inside the aftershock decay of a nearby magnitude 4.6 earthquake that occurred about 8 hours earlier. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 20:29:09 UTC | 3.2ml | 23 km ESE of Wright, Wyoming 43.684°, -105.221° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.2 earthquake was recorded 23 km ESE of Wright, Wyoming on March 11, 2023 at 20:29 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 20:18:40 UTC | 2.0ml | 100 km W of Adak, Alaska 51.852°, -178.090° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 100 km W of Adak, Alaska on March 11, 2023 at 20:18 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. 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. | ||||||||
2023-03-11 2023-03-11 20:09:56 UTC | 2.0ml | 87 km W of Adak, Alaska 51.858°, -177.897° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 87 km W of Adak, Alaska with origin time 20:09 UTC on March 11, 2023. 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. | ||||||||
2023-03-11 2023-03-11 19:47:10 UTC | 4.0mb | 103 km W of Adak, Alaska 51.858°, -178.143° | 5.0 km | - | III | - | ✓ Reviewed | USGS → |
This magnitude 4.0 event was detected 103 km W of Adak, Alaska on March 11, 2023, with origin time 19:47 UTC. In the 72 hours after this event, the USGS recorded 51 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. | ||||||||
2023-03-11 2023-03-11 19:43:57 UTC | 3.7mb | 103 km W of Adak, Alaska 51.868°, -178.137° | 11.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.7 seismic event took place 103 km W of Adak, Alaska on March 11, 2023 at 19:43 UTC. In the 72 hours after this event, the USGS recorded 51 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 19:43:08 UTC | 2.5ml | 103 km W of Adak, Alaska 51.871°, -178.130° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:43 UTC on March 11, 2023, a magnitude 2.5 tremor occurred 103 km W of Adak, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.7 earthquake that occurred about 10 hours earlier. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 19:35:16 UTC | 4.3mb | 11 km SW of Ceyhan, Turkey 36.951°, 35.735° | 3.7 km | 4 | - | - | ✓ Reviewed | USGS → |
On March 11, 2023, worldwide seismic activity registered a magnitude 4.3 earthquake 11 km SW of Ceyhan, Turkey at 19:35 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-03-11 2023-03-11 19:30:57 UTC | 4.3mb | 2 km W of Aliaga, Philippines 15.495°, 120.816° | 183.1 km | - | - | - | ✓ Reviewed | USGS → |
At 19:30 UTC on March 11, 2023, a magnitude 4.3 tremor occurred 2 km W of Aliaga, Philippines. The event was offshore. See the M4.3 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 March 11, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.