Earthquakes on August 22, 2023
340
EARTHQUAKES on August 22, 2023
24-hour UTC period · USGS data
55 km deep · 13 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
0
M4.0–4.9
32
M3.0–3.9
19
M2.0–2.9
67
M1.0–1.9
222
Activity Summary
340
Total earthquakes
~250
Daily average
Elevated
Activity level
0
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
4.9
6 km ESE of Masally, Azerbaijan
21:23 UTC · 54.6 km deep
Felt by 13
4.9
208 km NNE of Shi Yomi, India
18:46 UTC · 31.9 km deep
4.9
Kermadec Islands, New Zealand
12:55 UTC · 42.1 km deep
4.7
15 km ESE of Sariz, Turkey
10:17 UTC · 14.0 km deep
Felt by 2
4.7
43 km SW of Ollagüe, Chile
07:45 UTC · 103.4 km deep
4.6
75 km WSW of Paita, Peru
21:13 UTC · 10.0 km deep
4.6
11 km NNE of Kuji, Japan
15:03 UTC · 36.4 km deep
Felt by 1
4.6
Kermadec Islands region
05:18 UTC · 359.7 km deep
Earthquake Map — August 22, 2023
All Earthquakes — August 22, 2023
Showing 30 of 118 (filtered from 340)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-08-22 2023-08-22 23:48:40 UTC | 2.1ml | 11 km E of Pāhala, Hawaii 19.201°, -155.374° | 30.7 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.1 earthquake 11 km E of Pāhala, Hawaii at 23:48 UTC on August 22, 2023. It arrived roughly 6 hours after a larger magnitude 2.2 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 23:44:12 UTC | 2.7ml | 16 km NE of Ashford, Washington 46.869°, -121.891° | 7.8 km | 8 | - | - | ✓ Reviewed | USGS → |
On August 22, 2023 at 23:44 UTC, a magnitude 2.7 earthquake struck 16 km NE of Ashford, Washington. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 23:06:20 UTC | 4.4mb | 196 km S of Ambon, Indonesia -5.444°, 128.480° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 22, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake 196 km S of Ambon, Indonesia at 23:06 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 22:58:00 UTC | 4.0ml | 57 km S of Whites City, New Mexico 31.661°, -104.316° | 7.9 km | 3 | IV | green | ✓ Reviewed | USGS → |
On August 22, 2023 at 22:58 UTC, a magnitude 4.0 earthquake struck 57 km S of Whites City, New Mexico. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 22:54:15 UTC | 2.2ml | 243 km WSW of Adak, Alaska 51.408°, 179.929° | 57.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 243 km WSW of Adak, Alaska on August 22, 2023 at 22:54 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 1 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 22:49:36 UTC | 2.0ml | 100 km SE of Nikolski, Alaska 52.381°, -167.696° | 14.5 km | - | - | - | ✓ Reviewed | USGS → |
August 22, 2023 brought a magnitude 2.0 earthquake 100 km SE of Nikolski, Alaska, logged at 22:49 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 22:49:18 UTC | 3.8ml | 244 km WSW of Adak, Alaska 51.348°, 179.939° | 52.4 km | - | I | - | ✓ Reviewed | USGS → |
On August 22, 2023, worldwide seismic activity registered a magnitude 3.8 earthquake 244 km WSW of Adak, Alaska at 22:49 UTC. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 22:02:52 UTC | 2.1ml | 82 km W of Adak, Alaska 51.951°, -177.829° | 185.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 82 km W of Adak, Alaska on August 22, 2023 at 22:02 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:55:35 UTC | 4.2mb | 182 km NNW of Tobelo, Indonesia 3.131°, 127.151° | 53.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 182 km NNW of Tobelo, Indonesia with origin time 21:55 UTC on August 22, 2023. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:53:12 UTC | 3.5md | 22 km SSE of Punta Cana, Dominican Republic 18.408°, -68.290° | 132.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 22, 2023 at 21:53 UTC, a magnitude 3.5 earthquake struck 22 km SSE of Punta Cana, Dominican Republic. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:39:34 UTC | 3.3ml | 59 km S of Nikolski, Alaska 52.411°, -169.023° | 35.0 km | - | I | - | ✓ Reviewed | USGS → |
This magnitude 3.3 event was detected 59 km S of Nikolski, Alaska on August 22, 2023, with origin time 21:39 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:39:23 UTC | 4.2mb | 107 km S of Alo, Wallis and Futuna -15.265°, -177.923° | 428.7 km | - | - | - | ✓ Reviewed | USGS → |
On August 22, 2023, worldwide seismic activity registered a magnitude 4.2 earthquake 107 km S of Alo, Wallis and Futuna at 21:39 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. | ||||||||
2023-08-22 2023-08-22 21:39:21 UTC | 3.8ml | Rat Islands, Aleutian Islands, Alaska 51.571°, 178.656° | 78.3 km | - | II | - | ✓ Reviewed | USGS → |
At 21:39 UTC on August 22, 2023, a magnitude 3.8 tremor occurred near Rat Islands, Aleutian Islands, Alaska. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:33:05 UTC | 4.2mb | 129 km NNW of Finschhafen, Papua New Guinea -5.556°, 147.249° | 177.3 km | - | - | - | ✓ Reviewed | USGS → |
At 21:33 UTC on August 22, 2023, a magnitude 4.2 tremor occurred 129 km NNW of Finschhafen, Papua New Guinea. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:23:57 UTC | 4.9mww | 6 km ESE of Masally, Azerbaijan 39.021°, 48.735° | 54.6 km | 13 | - | - | ✓ Reviewed | USGS → |
On August 22, 2023 at 21:23 UTC, a magnitude 4.9 earthquake struck 6 km ESE of Masally, Azerbaijan. It is the largest earthquake currently listed for worldwide seismic activity on August 22, 2023. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:13:15 UTC | 4.6mb | 75 km WSW of Paita, Peru -5.319°, -81.752° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake 75 km WSW of Paita, Peru at 21:13 UTC on August 22, 2023. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:09:47 UTC | 4.2mb | 216 km WSW of Qamdo, China 30.440°, 95.058° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 216 km WSW of Qamdo, China at 21:09 UTC on August 22, 2023. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 21:00:08 UTC | 2.1ml | Washington 47.398°, -117.874° | -0.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake near Washington at 21:00 UTC on August 22, 2023. 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. | ||||||||
2023-08-22 2023-08-22 20:56:31 UTC | 3.4ml | 24 km ENE of Healy, Alaska 63.920°, -148.478° | 104.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.4 earthquake was recorded 24 km ENE of Healy, Alaska on August 22, 2023 at 20:56 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 20:07:43 UTC | 4.1mb | Oaxaca, Mexico 17.983°, -96.452° | 85.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected near Oaxaca, Mexico on August 22, 2023, with origin time 20:07 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 20:05:11 UTC | 4.4mb | south of the Fiji Islands -23.811°, -179.457° | 470.6 km | - | - | - | ✓ Reviewed | USGS → |
At 20:05 UTC on August 22, 2023, a magnitude 4.4 tremor occurred south of the Fiji Islands. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 20:02:43 UTC | 2.5ml | 86 km SSW of Sand Point, Alaska 54.649°, -161.145° | 21.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 86 km SSW of Sand Point, Alaska at 20:02 UTC on August 22, 2023. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 19:33:12 UTC | 2.5ml | 77 km SE of King Cove, Alaska 54.523°, -161.550° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 77 km SE of King Cove, Alaska on August 22, 2023, with origin time 19:33 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 18:59:49 UTC | 2.2ml | 16 km SE of Ocotillo Wells, CA 33.035°, -116.016° | 4.2 km | - | - | - | ✓ Reviewed | USGS → |
At 18:59 UTC on August 22, 2023, a magnitude 2.2 tremor occurred 16 km SE of Ocotillo Wells, CA. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 18:47:16 UTC | 2.7ml | 44 km ESE of Atka, Alaska 51.998°, -173.641° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 44 km ESE of Atka, Alaska with origin time 18:47 UTC on August 22, 2023. Coming 7 hours after a magnitude 3.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 18:46:54 UTC | 4.9mb | 208 km NNE of Shi Yomi, India 30.364°, 94.849° | 31.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 earthquake was recorded 208 km NNE of Shi Yomi, India on August 22, 2023 at 18:46 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 18:43:34 UTC | 4.4mb | 55 km NNW of Isangel, Vanuatu -19.083°, 169.060° | 162.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 55 km NNW of Isangel, Vanuatu at 18:43 UTC on August 22, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 18:39:19 UTC | 2.1ml | 192 km S of Atka, Alaska 50.469°, -174.245° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
August 22, 2023 brought a magnitude 2.1 earthquake 192 km S of Atka, Alaska, logged at 18:39 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 18:37:57 UTC | 4.5mb | 220 km NNE of Bitung, Indonesia 3.351°, 125.700° | 60.7 km | - | - | - | ✓ Reviewed | USGS → |
On August 22, 2023 at 18:37 UTC, a magnitude 4.5 earthquake struck 220 km NNE of Bitung, Indonesia. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-22 2023-08-22 18:06:52 UTC | 2.2md | 1 km WSW of Pāhala, Hawaii 19.197°, -155.493° | 33.0 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.2 earthquake 1 km WSW of Pāhala, Hawaii came in on August 22, 2023 at 18:06 UTC. See the M2.2 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 August 22, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.