Earthquakes on December 22, 2021
312
EARTHQUAKES on December 22, 2021
24-hour UTC period · USGS data
10 km deep · 11 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
53
M3.0–3.9
11
M2.0–2.9
55
M1.0–1.9
189
Activity Summary
312
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events
Significant Earthquakes (M4.5+)
6.0
213 km SW of La Cruz de Loreto, Mexico
23:22 UTC · 10.0 km deep
Felt by 11
5.9
South Sandwich Islands region
05:51 UTC · 35.0 km deep
5.3
South Sandwich Islands region
13:49 UTC · 35.0 km deep
5.2
58 km ESE of Kokopo, Papua New Guinea
09:19 UTC · 57.6 km deep
Felt by 1
4.9
141 km WNW of Tobelo, Indonesia
12:27 UTC · 10.0 km deep
4.9
144 km WNW of Tobelo, Indonesia
12:19 UTC · 19.1 km deep
4.9
121 km WNW of Naha, Japan
07:07 UTC · 10.0 km deep
4.9
151 km SSW of Kokopo, Papua New Guinea
04:55 UTC · 35.0 km deep
Earthquake Map — December 22, 2021
All Earthquakes — December 22, 2021
Showing 30 of 123 (filtered from 312)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-12-22 2021-12-22 23:22:58 UTC | 6.0mww | 213 km SW of La Cruz de Loreto, Mexico 18.837°, -107.071° | 10.0 km | 11 | III | green | ✓ Reviewed | USGS → |
On December 22, 2021 at 23:22 UTC, a magnitude 6.0 earthquake struck 213 km SW of La Cruz de Loreto, 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 December 22, 2021. See the M6.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 23:21:46 UTC | 4.5mwr | Near the coast of Antofagasta, Chile -25.520°, -70.390° | 52.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake near Near the coast of Antofagasta, Chile with origin time 23:21 UTC on December 22, 2021. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 23:09:32 UTC | 2.2md | 4 km SSE of P?hala, Hawaii 19.164°, -155.460° | 31.9 km | - | - | - | Auto | USGS → |
On December 22, 2021 at 23:09 UTC, a magnitude 2.2 earthquake struck 4 km SSE of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 22 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 23:01:29 UTC | 4.2mb | 24 km NNW of Saint John’s, Antigua and Barbuda 17.326°, -61.916° | 65.9 km | 8 | - | - | ✓ Reviewed | USGS → |
At 23:01 UTC on December 22, 2021, a magnitude 4.2 tremor occurred 24 km NNW of Saint John’s, Antigua and Barbuda. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 22:38:49 UTC | 4.2mb | 120 km W of San Antonio de los Cobres, Argentina -24.334°, -67.501° | 212.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 120 km W of San Antonio de los Cobres, Argentina at 22:38 UTC on December 22, 2021. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 22:38:28 UTC | 4.3mb | Izu Islands, Japan region 31.371°, 142.499° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 22, 2021 at 22:38 UTC, a magnitude 4.3 earthquake struck in the Izu Islands, Japan region. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 22:33:26 UTC | 4.4mb | 66 km NE of Tobelo, Indonesia 2.158°, 128.427° | 46.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 66 km NE of Tobelo, Indonesia came in on December 22, 2021 at 22:33 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 22:27:56 UTC | 4.1mb | 86 km WNW of San Antonio de los Cobres, Argentina -24.042°, -67.150° | 227.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake 86 km WNW of San Antonio de los Cobres, Argentina with origin time 22:27 UTC on December 22, 2021. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 22:07:10 UTC | 4.4mb | 168 km NW of Panguna, Papua New Guinea -5.433°, 154.246° | 151.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 168 km NW of Panguna, Papua New Guinea on December 22, 2021 at 22:07 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 21:53:53 UTC | 4.4mb | 86 km ENE of Misawa, Japan 41.019°, 142.322° | 51.0 km | - | - | - | ✓ Reviewed | USGS → |
December 22, 2021 brought a magnitude 4.4 earthquake 86 km ENE of Misawa, Japan, logged at 21:53 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 21:53:48 UTC | 2.7ml | 14 km SSW of Iquique, Chile -20.337°, -70.189° | 34.0 km | 2 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 14 km SSW of Iquique, Chile with origin time 21:53 UTC on December 22, 2021. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 21:36:54 UTC | 2.6md | 11km WSW of Petrolia, CA 40.273°, -124.398° | 28.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 seismic event took place 11km WSW of Petrolia, CA on December 22, 2021 at 21:36 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 21:34:39 UTC | 2.1ml | 22 km WNW of Stanley, Idaho 44.313°, -115.180° | 9.3 km | - | - | - | ✓ Reviewed | USGS → |
On December 22, 2021 at 21:34 UTC, a magnitude 2.1 earthquake struck 22 km WNW of Stanley, Idaho. Coming 15 hours after a magnitude 2.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 21:22:38 UTC | 4.6mb | 260 km SSW of ‘Ohonua, Tonga -23.585°, -175.695° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake 260 km SSW of ‘Ohonua, Tonga at 21:22 UTC on December 22, 2021. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 21:17:24 UTC | 4.7mb | 62 km SSE of Altai, Mongolia 45.843°, 96.544° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
December 22, 2021 brought a magnitude 4.7 earthquake 62 km SSE of Altai, Mongolia, logged at 21:17 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 20:23:41 UTC | 2.1md | 9 km ENE of P?hala, Hawaii 19.224°, -155.396° | 32.8 km | - | - | - | Auto | USGS → |
A magnitude 2.1 earthquake was recorded 9 km ENE of P?hala, Hawaii on December 22, 2021 at 20:23 UTC. Coming 19 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 19:26:28 UTC | 3.0ml | 56 km NE of Adak, Alaska 52.231°, -176.042° | 157.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 56 km NE of Adak, Alaska on December 22, 2021, with origin time 19:26 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 19:16:03 UTC | 4.4mb | 27 km NNE of Tocota, Peru -15.432°, -73.982° | 72.7 km | - | - | - | ✓ Reviewed | USGS → |
On December 22, 2021 at 19:16 UTC, a magnitude 4.4 earthquake struck 27 km NNE of Tocota, Peru. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 19:05:25 UTC | 2.0ml | 5 km SW of P?hala, Hawaii 19.165°, -155.509° | 35.3 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.0 earthquake 5 km SW of P?hala, Hawaii came in on December 22, 2021 at 19:05 UTC. It arrived roughly 18 hours after a larger magnitude 3.0 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. | ||||||||
2021-12-22 2021-12-22 19:04:40 UTC | 2.1md | 4km E of Redwood Valley, CA 39.269°, -123.160° | 2.6 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 4km E of Redwood Valley, CA with origin time 19:04 UTC on December 22, 2021. 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. | ||||||||
2021-12-22 2021-12-22 18:49:54 UTC | 4.4mb | 57 km SW of Rabaul, Papua New Guinea -4.503°, 151.736° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 57 km SW of Rabaul, Papua New Guinea on December 22, 2021 at 18:49 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 18:48:14 UTC | 2.7ml | 186 km SSE of Adak, Alaska 50.486°, -175.129° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 22, 2021, worldwide seismic activity registered a magnitude 2.7 earthquake 186 km SSE of Adak, Alaska at 18:48 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 18:41:39 UTC | 4.2mb | 143 km NW of Tiksi, Russia 72.461°, 125.534° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 143 km NW of Tiksi, Russia on December 22, 2021, with origin time 18:41 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 18:39:53 UTC | 2.5md | 7km NNE of Petrolia, CA 40.389°, -124.264° | 25.3 km | - | - | - | ✓ Reviewed | USGS → |
On December 22, 2021, worldwide seismic activity registered a magnitude 2.5 earthquake 7km NNE of Petrolia, CA at 18:39 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 18:31:09 UTC | 3.3ml | 138 km SSE of Sand Point, Alaska 54.196°, -159.649° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 22, 2021 at 18:31 UTC, a magnitude 3.3 earthquake struck 138 km SSE of Sand Point, Alaska. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 18:20:31 UTC | 4.1ml | 41 km NNW of La Serena, Chile -29.556°, -71.396° | 35.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On December 22, 2021, worldwide seismic activity registered a magnitude 4.1 earthquake 41 km NNW of La Serena, Chile at 18:20 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 17:49:45 UTC | 3.0ml | 102km WNW of Bayview, CA 40.989°, -125.370° | 9.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.0 earthquake 102km WNW of Bayview, CA at 17:49 UTC on December 22, 2021. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 17:41:18 UTC | 4.5mb | 297 km SW of Vaini, Tonga -23.235°, -177.050° | 168.9 km | - | - | - | ✓ Reviewed | USGS → |
On December 22, 2021, worldwide seismic activity registered a magnitude 4.5 earthquake 297 km SW of Vaini, Tonga at 17:41 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 17:08:56 UTC | 2.0md | 4 km S of P?hala, Hawaii 19.158°, -155.479° | 33.8 km | - | - | - | Auto | USGS → |
On December 22, 2021 at 17:08 UTC, a magnitude 2.0 earthquake struck 4 km S of P?hala, Hawaii. 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. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-22 2021-12-22 16:57:36 UTC | 2.1md | 5 km ENE of P?hala, Hawaii 19.219°, -155.426° | 31.1 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.1 earthquake 5 km ENE of P?hala, Hawaii with origin time 16:57 UTC on December 22, 2021. It arrived roughly 15 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.1 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 December 22, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.