Earthquakes on March 21, 2024
267
EARTHQUAKES on March 21, 2024
24-hour UTC period · USGS data
LARGEST: M5.2 — South Sandwich Islands region
44 km deep · 1 person felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
22
M3.0–3.9
10
M2.0–2.9
49
M1.0–1.9
183
Activity Summary
267
Total earthquakes
~250
Daily average
Normal
Activity level
3
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.2
South Sandwich Islands region
02:47 UTC · 43.9 km deep
Felt by 1
5.2
1 km S of Kasukabe, Japan
00:08 UTC · 45.0 km deep
Felt by 144
5.1
175 km ESE of Biak, Indonesia
00:19 UTC · 12.4 km deep
4.8
Kermadec Islands region
23:29 UTC · 17.7 km deep
4.7
10 km NW of Hualien City, Taiwan
10:49 UTC · 24.3 km deep
Felt by 33
4.6
Izu Islands, Japan region
07:02 UTC · 10.0 km deep
4.6
20 km NNE of Basmat, India
00:38 UTC · 10.0 km deep
Felt by 64
4.5
87 km SE of La Tirana, Chile
13:56 UTC · 117.0 km deep
Earthquake Map — March 21, 2024
All Earthquakes — March 21, 2024
Showing 30 of 84 (filtered from 267)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2024-03-21 2024-03-21 23:36:13 UTC | 2.3ml | 42 km ENE of Akutan, Alaska 54.212°, -165.131° | 69.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 42 km ENE of Akutan, Alaska on March 21, 2024 at 23:36 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 23:29:49 UTC | 4.8mb | Kermadec Islands region -27.440°, -176.487° | 17.7 km | - | - | - | ✓ Reviewed | USGS → |
On March 21, 2024, worldwide seismic activity registered a magnitude 4.8 earthquake in the Kermadec Islands region at 23:29 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 22:41:11 UTC | 2.2md | 27 km SSE of Fern Forest, Hawaii 19.229°, -155.058° | 43.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 27 km SSE of Fern Forest, Hawaii on March 21, 2024 at 22:41 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 22:38:32 UTC | 2.1ml | 3 km NNE of Okeene, Oklahoma 36.147°, -98.308° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 3 km NNE of Okeene, Oklahoma on March 21, 2024 at 22:38 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 22:37:00 UTC | 4.2mb | Fiji region -21.458°, -178.875° | 513.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place in the Fiji region on March 21, 2024 at 22:37 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. | ||||||||
2024-03-21 2024-03-21 22:26:59 UTC | 4.3mb | Maug Islands region, Northern Mariana Islands 20.123°, 145.213° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:26 UTC on March 21, 2024, a magnitude 4.3 tremor occurred in the Maug Islands region, Northern Mariana Islands. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 22:25:12 UTC | 2.2ml | 55 km NW of Toyah, Texas 31.683°, -104.194° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 55 km NW of Toyah, Texas at 22:25 UTC on March 21, 2024. Coming 2 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 22:24:54 UTC | 4.2mb | 232 km NNE of Nagqu, China 33.474°, 92.812° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
March 21, 2024 brought a magnitude 4.2 earthquake 232 km NNE of Nagqu, China, logged at 22:24 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 22:14:00 UTC | 2.0ml | 40 km W of Mentone, Texas 31.649°, -104.022° | 5.5 km | - | - | - | ✓ Reviewed | USGS → |
March 21, 2024 brought a magnitude 2.0 earthquake 40 km W of Mentone, Texas, logged at 22:14 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 21:36:33 UTC | 2.6ml | 75 km NNE of Petersville, Alaska 63.153°, -150.412° | 91.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 75 km NNE of Petersville, Alaska on March 21, 2024, with origin time 21:36 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 21:26:20 UTC | 3.9mb | 120 km SE of King Cove, Alaska 54.289°, -161.020° | 35.0 km | - | I | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.9 earthquake 120 km SE of King Cove, Alaska at 21:26 UTC on March 21, 2024. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 21:16:59 UTC | 4.2mb | 43 km W of Coquimbo, Chile -30.024°, -71.785° | 40.2 km | 1 | - | - | ✓ Reviewed | USGS → |
On March 21, 2024 at 21:16 UTC, a magnitude 4.2 earthquake struck 43 km W of Coquimbo, Chile. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 21:07:24 UTC | 2.4ml | 64 km SW of Akhiok, Alaska 56.547°, -154.927° | 19.9 km | - | - | - | ✓ Reviewed | USGS → |
On March 21, 2024, worldwide seismic activity registered a magnitude 2.4 earthquake 64 km SW of Akhiok, Alaska at 21:07 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 20:22:09 UTC | 2.4ml | 60 km S of Whites City, New Mexico 31.629°, -104.368° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
At 20:22 UTC on March 21, 2024, a magnitude 2.4 tremor occurred 60 km S of Whites City, New Mexico. In the 72 hours after this event, the USGS recorded 4 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 20:00:29 UTC | 3.4ml | 11 km ENE of Wright, Wyoming 43.789°, -105.355° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 21, 2024 at 20:00 UTC, a magnitude 3.4 earthquake struck 11 km ENE of Wright, Wyoming. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 19:50:53 UTC | 2.7ml | 85 km SSE of False Pass, Alaska 54.113°, -163.070° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 85 km SSE of False Pass, Alaska with origin time 19:50 UTC on March 21, 2024. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 19:49:39 UTC | 2.0ml | 59 km ENE of Pedro Bay, Alaska 59.934°, -153.092° | 105.3 km | - | - | - | ✓ Reviewed | USGS → |
On March 21, 2024 at 19:49 UTC, a magnitude 2.0 earthquake struck 59 km ENE of Pedro Bay, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 18:52:14 UTC | 4.3mb | Kuril Islands 46.898°, 153.084° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake near Kuril Islands at 18:52 UTC on March 21, 2024. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 18:49:32 UTC | 2.8ml | 184 km W of Port Orford, Oregon 42.499°, -126.721° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 seismic event took place 184 km W of Port Orford, Oregon on March 21, 2024 at 18:49 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 18:36:07 UTC | 3.1md | 3 km NNE of Mayagüez, Puerto Rico 18.234°, -67.129° | 80.1 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.1 earthquake 3 km NNE of Mayagüez, Puerto Rico with origin time 18:36 UTC on March 21, 2024. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 18:32:17 UTC | 2.0ml | 63 km N of Aleneva, Alaska 58.626°, -152.913° | 10.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 63 km N of Aleneva, Alaska on March 21, 2024 at 18:32 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 17:47:24 UTC | 2.7ml | 7 km SSE of Midland, Texas 31.942°, -102.036° | 9.3 km | 34 | - | - | ✓ Reviewed | USGS → |
On March 21, 2024, worldwide seismic activity registered a magnitude 2.7 earthquake 7 km SSE of Midland, Texas at 17:47 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 17:46:39 UTC | 3.1ml | 73 km S of Maneadero, B.C., MX 31.061°, -116.641° | 11.6 km | - | - | - | ✓ Reviewed | USGS → |
On March 21, 2024, worldwide seismic activity registered a magnitude 3.1 earthquake 73 km S of Maneadero, B.C., MX at 17:46 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 16:59:35 UTC | 2.5ml | 42 km NW of Stanley, Idaho 44.534°, -115.246° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 42 km NW of Stanley, Idaho on March 21, 2024 at 16:59 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 16:37:30 UTC | 4.2mb | south of the Fiji Islands -24.112°, -176.491° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded south of the Fiji Islands on March 21, 2024 at 16:37 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 16:09:18 UTC | 3.9mwr | 74 km SW of Taltal, Chile -25.819°, -71.068° | 11.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.9 event was detected 74 km SW of Taltal, Chile on March 21, 2024, with origin time 16:09 UTC. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 15:49:48 UTC | 2.0ml | 24 km ESE of Pleasant Valley, Alaska 64.806°, -146.379° | 15.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 24 km ESE of Pleasant Valley, Alaska with origin time 15:49 UTC on March 21, 2024. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 14:41:54 UTC | 2.1md | 10 km ENE of Pāhala, Hawaii 19.237°, -155.388° | 32.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 10 km ENE of Pāhala, Hawaii on March 21, 2024 at 14:41 UTC. Coming 1 hours after a magnitude 2.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-03-21 2024-03-21 14:40:10 UTC | 2.1ml | 29 km SE of Nome, Alaska 64.292°, -165.014° | 4.4 km | - | - | - | ✓ Reviewed | USGS → |
On March 21, 2024, worldwide seismic activity registered a magnitude 2.1 earthquake 29 km SE of Nome, Alaska at 14:40 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. | ||||||||
2024-03-21 2024-03-21 14:19:30 UTC | 4.2mb | Fiji region -20.843°, -178.613° | 559.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake in the Fiji region with origin time 14:19 UTC on March 21, 2024. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.2 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 21, 2024. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.