Earthquakes on April 22, 2021
264
EARTHQUAKES on April 22, 2021
24-hour UTC period · USGS data
13 km deep · 37 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
1
M4.0–4.9
38
M3.0–3.9
12
M2.0–2.9
47
M1.0–1.9
166
Activity Summary
264
Total earthquakes
~250
Daily average
Normal
Activity level
1
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.5
82 km WSW of San Antonio, Chile
00:17 UTC · 13.0 km deep
Felt by 37
4.8
71 km S of Masachapa, Nicaragua
16:32 UTC · 44.0 km deep
4.7
11 km WSW of Silago, Philippines
20:31 UTC · 25.8 km deep
4.6
South Sandwich Islands region
23:36 UTC · 106.9 km deep
4.6
95 km WNW of Kirakira, Solomon Islands
23:35 UTC · 62.7 km deep
4.6
119 km WNW of Neiafu, Tonga
19:27 UTC · 153.6 km deep
4.6
201 km NNE of Laikit, Laikit II (Dimembe), Indonesia
18:33 UTC · 51.8 km deep
4.6
140 km NE of Neiafu, Tonga
16:39 UTC · 10.0 km deep
Earthquake Map — April 22, 2021
All Earthquakes — April 22, 2021
Showing 30 of 98 (filtered from 264)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-04-22 2021-04-22 23:50:05 UTC | 3.0ml | 152 km S of False Pass, Alaska 53.487°, -163.449° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 seismic event took place 152 km S of False Pass, Alaska on April 22, 2021 at 23:50 UTC. It arrived roughly 1 hours after a larger magnitude 3.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 23:46:48 UTC | 2.4ml | 53 km SSW of Whites City, New Mexico 31.721°, -104.576° | 5.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 53 km SSW of Whites City, New Mexico on April 22, 2021, with origin time 23:46 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 23:36:10 UTC | 4.6mb | South Sandwich Islands region -56.122°, -27.302° | 106.9 km | - | - | - | ✓ Reviewed | USGS → |
On April 22, 2021, worldwide seismic activity registered a magnitude 4.6 earthquake in the South Sandwich Islands region at 23:36 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 23:35:02 UTC | 4.6mb | 95 km WNW of Kirakira, Solomon Islands -10.239°, 161.074° | 62.7 km | - | - | - | ✓ Reviewed | USGS → |
At 23:35 UTC on April 22, 2021, a magnitude 4.6 tremor occurred 95 km WNW of Kirakira, Solomon Islands. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 23:25:05 UTC | 3.9mb | 149 km S of False Pass, Alaska 53.510°, -163.418° | 18.0 km | - | - | - | ✓ Reviewed | USGS → |
April 22, 2021 brought a magnitude 3.9 earthquake 149 km S of False Pass, Alaska, logged at 23:25 UTC. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 23:08:47 UTC | 2.8ml | 66 km NW of Lake Minchumina, Alaska 64.332°, -153.209° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 66 km NW of Lake Minchumina, Alaska with origin time 23:08 UTC on April 22, 2021. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 22:48:22 UTC | 2.2ml | 87 km SSE of Sand Point, Alaska 54.633°, -159.900° | 11.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 87 km SSE of Sand Point, Alaska came in on April 22, 2021 at 22:48 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 22:48:18 UTC | 4.3mb | south of the Fiji Islands -23.438°, -179.784° | 532.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded south of the Fiji Islands on April 22, 2021 at 22:48 UTC. 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. | ||||||||
2021-04-22 2021-04-22 22:42:39 UTC | 2.3ml | 55 km WNW of Elfin Cove, Alaska 58.445°, -137.153° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 22, 2021 at 22:42 UTC, a magnitude 2.3 earthquake struck 55 km WNW of Elfin Cove, Alaska. 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. | ||||||||
2021-04-22 2021-04-22 22:41:15 UTC | 2.3ml | 98 km SSE of Sand Point, Alaska 54.535°, -159.836° | 16.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 98 km SSE of Sand Point, Alaska on April 22, 2021 at 22:41 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 22:29:26 UTC | 4.1mb | 83 km NNE of Calama, Chile -21.764°, -68.616° | 117.6 km | 1 | - | - | ✓ Reviewed | USGS → |
On April 22, 2021 at 22:29 UTC, a magnitude 4.1 earthquake struck 83 km NNE of Calama, Chile. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 22:00:02 UTC | 4.5mb | 72 km S of Vanimo, Papua New Guinea -3.340°, 141.253° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 72 km S of Vanimo, Papua New Guinea on April 22, 2021 at 22:00 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 21:57:19 UTC | 4.2mb | 84 km WSW of San Antonio, Chile -34.003°, -72.375° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 84 km WSW of San Antonio, Chile on April 22, 2021, with origin time 21:57 UTC. Coming 22 hours after a magnitude 5.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 21:45:13 UTC | 4.1mb | 84 km WSW of San Antonio, Chile -33.996°, -72.385° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 84 km WSW of San Antonio, Chile on April 22, 2021 at 21:45 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.5 earthquake that occurred about 21 hours earlier. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 21:36:29 UTC | 2.8ml | 268 km WSW of Adak, Alaska 51.220°, 179.644° | 18.1 km | - | - | - | ✓ Reviewed | USGS → |
On April 22, 2021, worldwide seismic activity registered a magnitude 2.8 earthquake 268 km WSW of Adak, Alaska at 21:36 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 21:32:21 UTC | 2.2ml | 113 km SSE of Akutan, Alaska 53.213°, -165.044° | 25.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 113 km SSE of Akutan, Alaska on April 22, 2021 at 21:32 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 21:07:39 UTC | 4.1mb | 47 km S of Jurm, Afghanistan 36.440°, 70.790° | 203.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake 47 km S of Jurm, Afghanistan with origin time 21:07 UTC on April 22, 2021. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 20:55:12 UTC | 4.3mb | 130 km NE of Lospalos, Timor Leste -7.622°, 127.766° | 54.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake 130 km NE of Lospalos, Timor Leste with origin time 20:55 UTC on April 22, 2021. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 20:36:35 UTC | 4.3mb | south of the Fiji Islands -22.290°, -179.354° | 584.8 km | - | - | - | ✓ Reviewed | USGS → |
On April 22, 2021, worldwide seismic activity registered a magnitude 4.3 earthquake south of the Fiji Islands at 20:36 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 20:31:24 UTC | 4.7mb | 11 km WSW of Silago, Philippines 10.474°, 125.077° | 25.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.7 earthquake 11 km WSW of Silago, Philippines with origin time 20:31 UTC on April 22, 2021. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 20:16:04 UTC | 2.0ml | 39 km SSE of Akutan, Alaska 53.810°, -165.519° | 76.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 39 km SSE of Akutan, Alaska with origin time 20:16 UTC on April 22, 2021. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 19:53:30 UTC | 4.5mb | south of the Fiji Islands -22.745°, -179.433° | 572.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake south of the Fiji Islands with origin time 19:53 UTC on April 22, 2021. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 19:49:58 UTC | 4.4mb | 34 km S of Mandráki, Greece 36.297°, 27.155° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected 34 km S of Mandráki, Greece on April 22, 2021, with origin time 19:49 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 19:46:34 UTC | 2.0md | 3 km SSE of P?hala, Hawaii 19.179°, -155.464° | 31.4 km | - | - | - | Auto | USGS → |
On April 22, 2021, worldwide seismic activity registered a magnitude 2.0 earthquake 3 km SSE of P?hala, Hawaii at 19:46 UTC. It arrived roughly 8 hours after a larger magnitude 2.3 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. | ||||||||
2021-04-22 2021-04-22 19:42:34 UTC | 4.2mb | 190 km WNW of Panguna, Papua New Guinea -5.453°, 153.992° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 190 km WNW of Panguna, Papua New Guinea came in on April 22, 2021 at 19:42 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 19:29:42 UTC | 2.8ml | 102 km SSE of Nikolai, Alaska 62.220°, -153.364° | 3.7 km | - | - | - | ✓ Reviewed | USGS → |
At 19:29 UTC on April 22, 2021, a magnitude 2.8 tremor occurred 102 km SSE of Nikolai, Alaska. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 19:27:32 UTC | 4.6mb | 119 km WNW of Neiafu, Tonga -18.346°, -175.072° | 153.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake 119 km WNW of Neiafu, Tonga at 19:27 UTC on April 22, 2021. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 19:06:37 UTC | 3.7mb | 106 km ESE of Adak, Alaska 51.487°, -175.232° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.7 earthquake was recorded 106 km ESE of Adak, Alaska on April 22, 2021 at 19:06 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 18:35:49 UTC | 4.4mb | 211 km SSW of Bengkulu, Indonesia -5.622°, 101.696° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 211 km SSW of Bengkulu, Indonesia came in on April 22, 2021 at 18:35 UTC. Coming 17 hours after a magnitude 4.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-22 2021-04-22 18:33:34 UTC | 4.6mb | 201 km NNE of Laikit, Laikit II (Dimembe), Indonesia 3.103°, 125.824° | 51.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.6 event was detected 201 km NNE of Laikit, Laikit II (Dimembe), Indonesia on April 22, 2021, with origin time 18:33 UTC. See the M4.6 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 22, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.