Earthquakes on April 21, 2022
309
EARTHQUAKES on April 21, 2022
24-hour UTC period · USGS data
27 km deep · 159 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
35
M3.0–3.9
8
M2.0–2.9
60
M1.0–1.9
201
Activity Summary
309
Total earthquakes
~250
Daily average
Elevated
Activity level
5
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
6.6
55 km WSW of Masachapa, Nicaragua
07:42 UTC · 27.0 km deep
Felt by 159
5.5
southern Mid-Atlantic Ridge
06:20 UTC · 10.0 km deep
5.5
Tristan da Cunha region
06:12 UTC · 10.0 km deep
5.1
near the north coast of Greenland
20:32 UTC · 10.0 km deep
5.0
Kuril Islands
12:38 UTC · 20.7 km deep
4.9
228 km S of Sinabang, Indonesia
20:23 UTC · 10.0 km deep
4.9
30 km S of Singkil, Indonesia
12:28 UTC · 48.0 km deep
4.8
72 km E of Nabire, Indonesia
20:01 UTC · 10.0 km deep
Earthquake Map — April 21, 2022
All Earthquakes — April 21, 2022
Showing 30 of 108 (filtered from 309)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2022-04-21 2022-04-21 23:50:09 UTC | 2.4md | 1 km NE of Fuig, Puerto Rico 17.995°, -66.909° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 21, 2022, worldwide seismic activity registered a magnitude 2.4 earthquake 1 km NE of Fuig, Puerto Rico at 23:50 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 8 hours earlier. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 23:38:51 UTC | 2.7md | 12 km SSE of Tallaboa, Puerto Rico 17.889°, -66.685° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.7 earthquake 12 km SSE of Tallaboa, Puerto Rico came in on April 21, 2022 at 23:38 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 23:16:22 UTC | 2.6ml | 16km WSW of Delta, B.C., MX 32.281°, -115.337° | 2.8 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 16km WSW of Delta, B.C., MX on April 21, 2022 at 23:16 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. | ||||||||
2022-04-21 2022-04-21 23:05:36 UTC | 3.4ml | 77 km NW of Atka, Alaska 52.769°, -174.857° | 199.9 km | - | - | - | ✓ Reviewed | USGS → |
At 23:05 UTC on April 21, 2022, a magnitude 3.4 tremor occurred 77 km NW of Atka, Alaska. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 22:41:05 UTC | 2.1ml | 11 km NE of P?hala, Hawaii 19.263°, -155.393° | 1.6 km | - | - | - | Auto | USGS → |
A magnitude 2.1 earthquake was recorded 11 km NE of P?hala, Hawaii on April 21, 2022 at 22:41 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 14 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. | ||||||||
2022-04-21 2022-04-21 22:19:02 UTC | 2.3ml | 71 km ESE of Adak, Alaska 51.525°, -175.769° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 71 km ESE of Adak, Alaska on April 21, 2022, with origin time 22:19 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 22:18:06 UTC | 2.5ml | 12km SSW of Searles Valley, CA 35.671°, -117.471° | 8.3 km | 1 | - | - | ✓ Reviewed | USGS → |
On April 21, 2022, worldwide seismic activity registered a magnitude 2.5 earthquake 12km SSW of Searles Valley, CA at 22:18 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 22:09:20 UTC | 2.4ml | 9 km N of East Wellington, Canada 49.257°, -124.002° | 57.6 km | - | - | - | ✓ Reviewed | USGS → |
April 21, 2022 brought a magnitude 2.4 earthquake 9 km N of East Wellington, Canada, logged at 22:09 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 22:07:54 UTC | 2.2ml | 16 km W of Volcano, Hawaii 19.426°, -155.390° | 8.1 km | - | - | - | ✓ Reviewed | USGS → |
At 22:07 UTC on April 21, 2022, a magnitude 2.2 tremor occurred 16 km W of Volcano, Hawaii. It arrived roughly 14 hours after a larger magnitude 3.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 21:32:46 UTC | 2.6md | 4 km SE of Howardville, Missouri 36.541°, -89.567° | 8.5 km | 13 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 seismic event took place 4 km SE of Howardville, Missouri on April 21, 2022 at 21:32 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:53:40 UTC | 2.8ml | 28 km NW of Stanley, Idaho 44.376°, -115.216° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 earthquake was recorded 28 km NW of Stanley, Idaho on April 21, 2022 at 20:53 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:40:21 UTC | 2.0ml | 50 km NNW of Koyukuk, Alaska 65.266°, -158.273° | 9.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 50 km NNW of Koyukuk, Alaska on April 21, 2022 at 20:40 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:36:18 UTC | 4.4mb | Pagan region, Northern Mariana Islands 18.503°, 146.398° | 50.1 km | - | - | - | ✓ Reviewed | USGS → |
April 21, 2022 brought a magnitude 4.4 earthquake in the Pagan region, Northern Mariana Islands, logged at 20:36 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:32:38 UTC | 5.1mww | near the north coast of Greenland 83.013°, -27.935° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 21, 2022, worldwide seismic activity registered a magnitude 5.1 earthquake near near the north coast of Greenland at 20:32 UTC. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:25:40 UTC | 2.9ml | 63 km ENE of Pedro Bay, Alaska 60.046°, -153.096° | 119.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 63 km ENE of Pedro Bay, Alaska on April 21, 2022 at 20:25 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:23:35 UTC | 4.9mb | 228 km S of Sinabang, Indonesia 0.449°, 96.762° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.9 earthquake 228 km S of Sinabang, Indonesia at 20:23 UTC on April 21, 2022. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:14:56 UTC | 2.0ml | 52 km S of Cantwell, Alaska 62.926°, -149.109° | 69.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 52 km S of Cantwell, Alaska with origin time 20:14 UTC on April 21, 2022. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:07:10 UTC | 2.3ml | 113 km SSE of Akutan, Alaska 53.264°, -164.874° | 41.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 113 km SSE of Akutan, Alaska came in on April 21, 2022 at 20:07 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 20:01:47 UTC | 4.8mb | 72 km E of Nabire, Indonesia -3.313°, 136.153° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake 72 km E of Nabire, Indonesia came in on April 21, 2022 at 20:01 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 19:40:47 UTC | 4.7mb | 86 km SSW of Hihifo, Tonga -16.691°, -174.056° | 117.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place 86 km SSW of Hihifo, Tonga on April 21, 2022 at 19:40 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 19:35:37 UTC | 2.4ml | 7 km ENE of P?hala, Hawaii 19.229°, -155.415° | 33.9 km | - | - | - | Auto | USGS → |
At 19:35 UTC on April 21, 2022, a magnitude 2.4 tremor occurred 7 km ENE of P?hala, Hawaii. Coming 11 hours after a magnitude 3.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 19:30:09 UTC | 4.6mb | 20 km NW of Basse-Pointe, Martinique 15.019°, -61.223° | 148.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake 20 km NW of Basse-Pointe, Martinique with origin time 19:30 UTC on April 21, 2022. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 19:27:27 UTC | 4.6mwr | 134 km NNE of Calama, Chile -21.385°, -68.318° | 118.7 km | 1 | - | - | ✓ Reviewed | USGS → |
On April 21, 2022, worldwide seismic activity registered a magnitude 4.6 earthquake 134 km NNE of Calama, Chile at 19:27 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 19:11:40 UTC | 2.3ml | 57 km S of Whites City, New Mexico 31.663°, -104.450° | 3.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 57 km S of Whites City, New Mexico on April 21, 2022 at 19:11 UTC. It arrived roughly 2 hours after a larger magnitude 2.9 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 19:05:33 UTC | 4.1mb | 138 km WNW of Tiksi, Russia 72.207°, 125.217° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake 138 km WNW of Tiksi, Russia came in on April 21, 2022 at 19:05 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 18:58:50 UTC | 3.6mw | 7km NE of Imperial, CA 32.895°, -115.513° | 9.4 km | 21 | III | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.6 earthquake 7km NE of Imperial, CA with origin time 18:58 UTC on April 21, 2022. 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 M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 18:53:20 UTC | 2.2md | 3km SSW of Cobb, CA 38.797°, -122.731° | 1.8 km | - | - | - | ✓ Reviewed | USGS → |
April 21, 2022 brought a magnitude 2.2 earthquake 3km SSW of Cobb, CA, logged at 18:53 UTC. 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 18:38:47 UTC | 4.5mb | western Indian-Antarctic Ridge -49.759°, 124.926° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake near western Indian-Antarctic Ridge at 18:38 UTC on April 21, 2022. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 18:30:09 UTC | 2.7ml | 41 km SSE of False Pass, Alaska 54.493°, -163.271° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 21, 2022, worldwide seismic activity registered a magnitude 2.7 earthquake 41 km SSE of False Pass, Alaska at 18:30 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-04-21 2022-04-21 18:14:26 UTC | 4.7mb | Volcano Islands, Japan region 22.886°, 144.061° | 35.6 km | - | - | - | ✓ Reviewed | USGS → |
April 21, 2022 brought a magnitude 4.7 earthquake in the Volcano Islands, Japan region, logged at 18:14 UTC. See the M4.7 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, 2022. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.