Earthquakes on August 21, 2022
253
EARTHQUAKES on August 21, 2022
24-hour UTC period · USGS data
13 km deep · 4 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
32
M3.0–3.9
21
M2.0–2.9
58
M1.0–1.9
140
Activity Summary
253
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
5.5
50 km NW of Bahía de Caráquez, Ecuador
10:28 UTC · 13.0 km deep
Felt by 4
5.2
Reykjanes Ridge
15:28 UTC · 10.0 km deep
4.9
103 km S of Ust’-Kamchatsk Staryy, Russia
23:15 UTC · 53.6 km deep
4.9
170 km SSE of Tondano, Indonesia
05:08 UTC · 51.3 km deep
4.7
Reykjanes Ridge
15:27 UTC · 10.0 km deep
4.7
Bougainville region, Papua New Guinea
11:46 UTC · 10.0 km deep
4.7
238 km NE of Laikit, Laikit II (Dimembe), Indonesia
07:33 UTC · 60.9 km deep
4.7
74 km NNE of Kurumkan, Russia
02:56 UTC · 10.0 km deep
Felt by 1
Earthquake Map — August 21, 2022
All Earthquakes — August 21, 2022
Showing 30 of 113 (filtered from 253)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2022-08-21 2022-08-21 23:57:07 UTC | 2.3md | 2 km WSW of Indios, Puerto Rico 17.985°, -66.838° | 16.4 km | - | - | - | ✓ Reviewed | USGS → |
On August 21, 2022 at 23:57 UTC, a magnitude 2.3 earthquake struck 2 km WSW of Indios, Puerto Rico. It arrived roughly 6 hours after a larger magnitude 2.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 23:56:12 UTC | 4.5mb | 115 km ENE of Pangai, Tonga -19.604°, -173.276° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
August 21, 2022 brought a magnitude 4.5 earthquake 115 km ENE of Pangai, Tonga, logged at 23:56 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 23:49:14 UTC | 2.2ml | 30 km NW of Conconully, Washington 48.744°, -120.050° | 10.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 30 km NW of Conconully, Washington with origin time 23:49 UTC on August 21, 2022. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 23:15:57 UTC | 4.9mb | 103 km S of Ust’-Kamchatsk Staryy, Russia 55.318°, 162.184° | 53.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake 103 km S of Ust’-Kamchatsk Staryy, Russia with origin time 23:15 UTC on August 21, 2022. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 23:11:11 UTC | 4.2mb | 28 km E of Constitución, Chile -35.321°, -72.102° | 69.4 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 28 km E of Constitución, Chile with origin time 23:11 UTC on August 21, 2022. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 22:14:27 UTC | 2.2md | 9km N of Walker, CA 38.591°, -119.461° | 5.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 9km N of Walker, CA on August 21, 2022, with origin time 22:14 UTC. It arrived roughly 4 hours after a larger magnitude 2.6 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. | ||||||||
2022-08-21 2022-08-21 21:59:56 UTC | 2.0ml | 99 km NW of Yakutat, Alaska 60.065°, -141.167° | 1.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 99 km NW of Yakutat, Alaska on August 21, 2022, with origin time 21:59 UTC. 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. | ||||||||
2022-08-21 2022-08-21 21:26:34 UTC | 2.7ml | Rat Islands, Aleutian Islands, Alaska 51.777°, 178.256° | 113.6 km | - | - | - | ✓ Reviewed | USGS → |
On August 21, 2022 at 21:26 UTC, a magnitude 2.7 earthquake struck near Rat Islands, Aleutian Islands, Alaska. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 21:00:29 UTC | 4.1mb | 33 km S of Jurm, Afghanistan 36.561°, 70.817° | 203.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake 33 km S of Jurm, Afghanistan came in on August 21, 2022 at 21:00 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 20:52:42 UTC | 2.3md | Puerto Rico region 17.997°, -66.882° | 15.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake in the Puerto Rico region at 20:52 UTC on August 21, 2022. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 3 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 20:35:12 UTC | 4.4mb | Maug Islands region, Northern Mariana Islands 19.724°, 144.786° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 21, 2022, worldwide seismic activity registered a magnitude 4.4 earthquake in the Maug Islands region, Northern Mariana Islands at 20:35 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 19:43:32 UTC | 3.2ml | 78 km ESE of Egegik, Alaska 57.869°, -156.217° | 134.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.2 earthquake 78 km ESE of Egegik, Alaska with origin time 19:43 UTC on August 21, 2022. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 19:41:09 UTC | 3.0ml | 15 km NNE of Ta`?, American Samoa -14.101°, -169.464° | 11.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 earthquake was recorded 15 km NNE of Ta`?, American Samoa on August 21, 2022 at 19:41 UTC. It arrived roughly 2 hours after a larger magnitude 3.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 19:37:08 UTC | 2.3ml | 13 km SSE of Waimea, Hawaii 19.912°, -155.623° | -1.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 13 km SSE of Waimea, Hawaii on August 21, 2022 at 19:37 UTC. This is the shallowest earthquake in the current dataset — a shallow crustal event. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 18:59:39 UTC | 2.5ml | 43 km WNW of Toyah, Texas 31.531°, -104.169° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
At 18:59 UTC on August 21, 2022, a magnitude 2.5 tremor occurred 43 km WNW of Toyah, Texas. Coming 3 hours after a magnitude 2.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 18:46:55 UTC | 2.8ml | 15 km NNE of Ta`?, American Samoa -14.101°, -169.468° | 11.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 15 km NNE of Ta`?, American Samoa on August 21, 2022, with origin time 18:46 UTC. Coming 1 hours after a magnitude 3.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 18:37:46 UTC | 2.6md | 7km NNE of Walker, CA 38.575°, -119.450° | 5.8 km | 3 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 7km NNE of Walker, CA at 18:37 UTC on August 21, 2022. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 18:29:48 UTC | 4.5mb | 287 km NNW of Sabang, Indonesia 8.224°, 94.163° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 21, 2022 at 18:29 UTC, a magnitude 4.5 earthquake struck 287 km NNW of Sabang, Indonesia. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 18:23:05 UTC | 2.1md | 10 km WSW of Volcano, Hawaii 19.415°, -155.332° | 4.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 10 km WSW of Volcano, Hawaii on August 21, 2022 at 18:23 UTC. Coming 3 hours after a magnitude 2.3 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 18:21:00 UTC | 2.7md | 10 km S of Ponce, Puerto Rico 17.913°, -66.633° | 25.2 km | - | - | - | ✓ Reviewed | USGS → |
At 18:21 UTC on August 21, 2022, a magnitude 2.7 tremor occurred 10 km S of Ponce, Puerto Rico. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 17:54:55 UTC | 2.0md | 9 km E of P?hala, Hawaii 19.202°, -155.384° | 33.1 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.0 earthquake 9 km E of P?hala, Hawaii at 17:54 UTC on August 21, 2022. It arrived roughly 9 hours after a larger magnitude 3.2 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. | ||||||||
2022-08-21 2022-08-21 17:51:26 UTC | 4.3mb | South Sandwich Islands region -57.096°, -25.114° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected in the South Sandwich Islands region on August 21, 2022, with origin time 17:51 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 17:38:33 UTC | 2.7md | 5 km SSW of Guánica, Puerto Rico 17.928°, -66.938° | 11.3 km | - | - | - | ✓ Reviewed | USGS → |
August 21, 2022 brought a magnitude 2.7 earthquake 5 km SSW of Guánica, Puerto Rico, logged at 17:38 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 17:27:38 UTC | 3.7ml | 15 km NNE of Ta`?, American Samoa -14.102°, -169.465° | 14.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.7 earthquake 15 km NNE of Ta`?, American Samoa at 17:27 UTC on August 21, 2022. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 17:20:22 UTC | 2.8ml | 46 km ENE of Chase, Alaska 62.558°, -149.239° | 52.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 46 km ENE of Chase, Alaska came in on August 21, 2022 at 17:20 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 17:09:57 UTC | 2.4ml | 68 km SSE of King Salmon, Alaska 58.143°, -156.100° | 146.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 68 km SSE of King Salmon, Alaska with origin time 17:09 UTC on August 21, 2022. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 17:09:51 UTC | 3.0ml | 18 km NNE of Ta`?, American Samoa -14.086°, -169.444° | 14.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.0 earthquake 18 km NNE of Ta`?, American Samoa with origin time 17:09 UTC on August 21, 2022. This event falls inside the aftershock decay of a nearby magnitude 3.6 earthquake that occurred about 11 hours earlier. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 17:09:31 UTC | 2.4md | 5 km SSW of Gurley, Alabama 34.660°, -86.399° | 3.3 km | - | - | - | ✓ Reviewed | USGS → |
On August 21, 2022, worldwide seismic activity registered a magnitude 2.4 earthquake 5 km SSW of Gurley, Alabama at 17:09 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. | ||||||||
2022-08-21 2022-08-21 16:57:00 UTC | 2.3ml | 187 km SE of Adak, Alaska 50.573°, -174.933° | 22.0 km | - | - | - | ✓ Reviewed | USGS → |
August 21, 2022 brought a magnitude 2.3 earthquake 187 km SE of Adak, Alaska, logged at 16:57 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-08-21 2022-08-21 16:55:59 UTC | 4.5mb | 15 km NNW of Cami?a, Chile -19.196°, -69.505° | 105.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 15 km NNW of Cami?a, Chile on August 21, 2022 at 16:55 UTC. See the M4.5 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 August 21, 2022. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.