Earthquakes on April 21, 2024
315
EARTHQUAKES on April 21, 2024
24-hour UTC period · USGS data
10 km deep · 1 person felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
44
M3.0–3.9
13
M2.0–2.9
67
M1.0–1.9
187
Activity Summary
315
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.4
142 km SSW of Emiliano Zapata, Mexico
19:05 UTC · 10.0 km deep
Felt by 1
5.3
119 km WNW of Höfn, Iceland
06:37 UTC · 10.0 km deep
5.1
Kermadec Islands region
11:59 UTC · 46.3 km deep
5.1
56 km S of Hualien City, Taiwan
02:40 UTC · 28.6 km deep
Felt by 14
4.9
50 km SSW of La Esperanza (El Zapotal), Mexico
16:51 UTC · 69.0 km deep
Felt by 1
4.7
21 km NNE of Hualien City, Taiwan
16:35 UTC · 33.0 km deep
Felt by 6
4.7
179 km ESE of Kimbe, Papua New Guinea
02:37 UTC · 10.0 km deep
4.6
120 km NW of El Alto, Peru
23:22 UTC · 10.0 km deep
Earthquake Map — April 21, 2024
All Earthquakes — April 21, 2024
Showing 30 of 128 (filtered from 315)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2024-04-21 2024-04-21 23:54:57 UTC | 2.1ml | 22 km N of Borrego Springs, CA 33.450°, -116.416° | 12.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 22 km N of Borrego Springs, CA came in on April 21, 2024 at 23:54 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 23:39:17 UTC | 2.7ml | 13 km E of Wright, Wyoming 43.764°, -105.325° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
April 21, 2024 brought a magnitude 2.7 earthquake 13 km E of Wright, Wyoming, logged at 23:39 UTC. It arrived roughly 4 hours after a larger magnitude 3.3 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 M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 23:36:26 UTC | 3.0ml | Rat Islands, Aleutian Islands, Alaska 50.396°, 178.672° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 21, 2024, worldwide seismic activity registered a magnitude 3.0 earthquake near Rat Islands, Aleutian Islands, Alaska at 23:36 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 23:23:54 UTC | 2.1md | 12 km ESE of Redway, CA 40.077°, -123.691° | 22.4 km | 1 | - | - | ✓ Reviewed | USGS → |
On April 21, 2024 at 23:23 UTC, a magnitude 2.1 earthquake struck 12 km ESE of Redway, CA. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 23:22:32 UTC | 4.6mb | 120 km NW of El Alto, Peru -3.445°, -81.931° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.6 earthquake 120 km NW of El Alto, Peru came in on April 21, 2024 at 23:22 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 23:11:40 UTC | 2.0ml | 36 km NNW of Toyah, Texas 31.606°, -103.976° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
On April 21, 2024, worldwide seismic activity registered a magnitude 2.0 earthquake 36 km NNW of Toyah, Texas at 23:11 UTC. It arrived roughly 3 hours after a larger magnitude 2.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 22:36:03 UTC | 2.7ml | 79 km SW of Adak, Alaska 51.431°, -177.543° | 36.5 km | - | - | - | ✓ Reviewed | USGS → |
On April 21, 2024 at 22:36 UTC, a magnitude 2.7 earthquake struck 79 km SW of Adak, Alaska. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 22:23:37 UTC | 2.6ml | 96 km N of Karluk, Alaska 58.430°, -154.636° | 99.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 96 km N of Karluk, Alaska at 22:23 UTC on April 21, 2024. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 22:15:57 UTC | 4.4mb | 17 km N of Mungui, Peru -15.024°, -72.920° | 84.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 17 km N of Mungui, Peru came in on April 21, 2024 at 22:15 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 22:10:07 UTC | 2.0md | 9 km ENE of Pāhala, Hawaii 19.235°, -155.393° | 32.4 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.0 earthquake 9 km ENE of Pāhala, Hawaii with origin time 22:10 UTC on April 21, 2024. Coming 8 hours after a magnitude 2.2 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. | ||||||||
2024-04-21 2024-04-21 21:58:30 UTC | 3.0ml | 271 km ESE of Attu Station, Alaska 51.843°, 176.819° | 67.8 km | - | - | - | ✓ Reviewed | USGS → |
At 21:58 UTC on April 21, 2024, a magnitude 3.0 tremor occurred 271 km ESE of Attu Station, Alaska. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 21:41:50 UTC | 2.3ml | 78 km SSW of Kaktovik, Alaska 69.448°, -144.150° | 9.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 78 km SSW of Kaktovik, Alaska at 21:41 UTC on April 21, 2024. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 21:36:06 UTC | 2.2ml | 64 km SSW of Whites City, New Mexico 31.609°, -104.511° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
At 21:36 UTC on April 21, 2024, a magnitude 2.2 tremor occurred 64 km SSW of Whites City, New Mexico. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 21:14:17 UTC | 2.5ml | 56 km S of Sand Point, Alaska 54.834°, -160.374° | 29.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 56 km S of Sand Point, Alaska on April 21, 2024 at 21:14 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 21:13:22 UTC | 2.6ml | 15 km W of Akutan, Alaska 54.134°, -166.014° | 4.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 15 km W of Akutan, Alaska on April 21, 2024, with origin time 21:13 UTC. 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. | ||||||||
2024-04-21 2024-04-21 21:04:41 UTC | 2.2md | 11 km ESE of Pāhala, Hawaii 19.158°, -155.380° | 26.8 km | - | - | - | Auto | USGS → |
On April 21, 2024, worldwide seismic activity registered a magnitude 2.2 earthquake 11 km ESE of Pāhala, Hawaii at 21:04 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.2 earthquake that occurred about 7 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 20:50:37 UTC | 2.7ml | 99 km SSE of King Cove, Alaska 54.199°, -161.886° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 99 km SSE of King Cove, Alaska on April 21, 2024 at 20:50 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 20:47:15 UTC | 2.0ml | 127 km WSW of Adak, Alaska 51.410°, -178.317° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:47 UTC on April 21, 2024, a magnitude 2.0 tremor occurred 127 km WSW of Adak, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 20:30:50 UTC | 2.2ml | 37 km NNW of Toyah, Texas 31.609°, -103.978° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 37 km NNW of Toyah, Texas at 20:30 UTC on April 21, 2024. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 20:00:42 UTC | 3.3ml | 13 km ENE of Wright, Wyoming 43.783°, -105.335° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 seismic event took place 13 km ENE of Wright, Wyoming on April 21, 2024 at 20:00 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 19:39:15 UTC | 2.6md | 2 km NNW of The Geysers, CA 38.793°, -122.765° | 2.9 km | 2 | - | - | ✓ Reviewed | USGS → |
At 19:39 UTC on April 21, 2024, a magnitude 2.6 tremor occurred 2 km NNW of The Geysers, CA. 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. | ||||||||
2024-04-21 2024-04-21 19:37:13 UTC | 3.0ml | 60 km WSW of Adak, Alaska 51.700°, -177.460° | 11.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.0 earthquake 60 km WSW of Adak, Alaska at 19:37 UTC on April 21, 2024. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 19:30:05 UTC | 4.1mb | 16 km ESE of Khuzdar, Pakistan 27.757°, 66.772° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 16 km ESE of Khuzdar, Pakistan on April 21, 2024 at 19:30 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 19:21:19 UTC | 2.7ml | 59 km WSW of Adak, Alaska 51.730°, -177.464° | 15.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 59 km WSW of Adak, Alaska with origin time 19:21 UTC on April 21, 2024. It arrived roughly 16 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 19:05:14 UTC | 5.4mww | 142 km SSW of Emiliano Zapata, Mexico 18.263°, -105.628° | 10.0 km | 1 | III | green | ✓ Reviewed | USGS → |
On April 21, 2024 at 19:05 UTC, a magnitude 5.4 earthquake struck 142 km SSW of Emiliano Zapata, Mexico. 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 April 21, 2024. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 18:53:22 UTC | 4.3mwr | 7 km S of Hualien City, Taiwan 23.909°, 121.617° | 25.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 7 km S of Hualien City, Taiwan on April 21, 2024 at 18:53 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 18:50:44 UTC | 4.4mb | 131 km S of Cilacap, Indonesia -8.906°, 109.114° | 39.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 131 km S of Cilacap, Indonesia on April 21, 2024 at 18:50 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 18:42:14 UTC | 2.9ml | 229 km WSW of Pistol River, Oregon 41.715°, -127.064° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 earthquake was recorded 229 km WSW of Pistol River, Oregon on April 21, 2024 at 18:42 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 18:39:17 UTC | 2.5md | 15 km SW of Corcoran, CA 36.007°, -119.687° | 27.3 km | 1 | - | - | ✓ Reviewed | USGS → |
April 21, 2024 brought a magnitude 2.5 earthquake 15 km SW of Corcoran, CA, logged at 18:39 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-04-21 2024-04-21 18:38:15 UTC | 2.4md | 9 km NW of Puerto Real, Puerto Rico 18.134°, -67.254° | 20.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 9 km NW of Puerto Real, Puerto Rico with origin time 18:38 UTC on April 21, 2024. The event was offshore. See the M2.4 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 April 21, 2024. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.