Earthquakes on December 20, 2022
439
EARTHQUAKES on December 20, 2022
24-hour UTC period · USGS data
LARGEST: M6.4 — 15km WSW of Ferndale, CA
18 km deep · 5,910 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
28
M3.0–3.9
16
M2.0–2.9
163
M1.0–1.9
225
Activity Summary
439
Total earthquakes
~250
Daily average
Elevated
Activity level
7
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.4
15km WSW of Ferndale, CA
10:34 UTC · 17.9 km deep
Felt by 5,910
5.6
south of the Kermadec Islands
16:38 UTC · 39.0 km deep
5.3
south of the Fiji Islands
23:13 UTC · 10.0 km deep
5.3
southeast of Easter Island
02:57 UTC · 10.0 km deep
5.2
Fiji region
12:52 UTC · 10.0 km deep
5.2
95 km E of Codrington, Antigua and Barbuda
12:28 UTC · 13.7 km deep
5.2
94 km E of Codrington, Antigua and Barbuda
06:33 UTC · 12.4 km deep
4.9
7km WNW of Rio Dell, CA
10:39 UTC · 26.6 km deep
Felt by 133
Earthquake Map — December 20, 2022
All Earthquakes — December 20, 2022
Showing 30 of 214 (filtered from 439)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2022-12-20 2022-12-20 23:57:11 UTC | 2.0ml | 54 km S of Whites City, New Mexico 31.681°, -104.391° | 5.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 54 km S of Whites City, New Mexico on December 20, 2022 at 23:57 UTC. It arrived roughly 1 hours after a larger magnitude 2.7 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. | ||||||||
2022-12-20 2022-12-20 23:41:55 UTC | 2.3ml | 112 km E of Chignik, Alaska 56.378°, -156.594° | 6.2 km | - | - | - | ✓ Reviewed | USGS → |
December 20, 2022 brought a magnitude 2.3 earthquake 112 km E of Chignik, Alaska, logged at 23:41 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 23:35:56 UTC | 2.0md | 7km SW of Ferndale, CA 40.535°, -124.321° | 16.3 km | - | - | - | ✓ Reviewed | USGS → |
At 23:35 UTC on December 20, 2022, a magnitude 2.0 tremor occurred 7km SW of Ferndale, CA. This event falls inside the aftershock decay of a nearby magnitude 6.4 earthquake that occurred about 13 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 23:16:19 UTC | 2.3md | 7 km NE of P?hala, Hawaii 19.254°, -155.432° | 32.3 km | - | - | - | Auto | USGS → |
At 23:16 UTC on December 20, 2022, a magnitude 2.3 tremor occurred 7 km NE of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.6 earthquake that occurred about 19 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 23:13:45 UTC | 5.3mww | south of the Fiji Islands -26.417°, -176.308° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.3 earthquake south of the Fiji Islands with origin time 23:13 UTC on December 20, 2022. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 22:59:21 UTC | 2.7ml | 57 km S of Whites City, New Mexico 31.661°, -104.323° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 57 km S of Whites City, New Mexico with origin time 22:59 UTC on December 20, 2022. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 22:56:51 UTC | 4.6mb | western Indian-Antarctic Ridge -49.656°, 122.763° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:56 UTC on December 20, 2022, a magnitude 4.6 tremor occurred near western Indian-Antarctic Ridge. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 22:52:22 UTC | 2.0ml | western Texas 31.585°, -104.231° | 8.0 km | - | - | - | ✓ Reviewed | USGS → |
December 20, 2022 brought a magnitude 2.0 earthquake near western Texas, logged at 22:52 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.2 earthquake that occurred about 13 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 22:43:03 UTC | 2.6md | 7km SW of Ferndale, CA 40.533°, -124.330° | 17.4 km | 2 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 7km SW of Ferndale, CA came in on December 20, 2022 at 22:43 UTC. It arrived roughly 12 hours after a larger magnitude 6.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 22:39:02 UTC | 4.5mb | south of the Fiji Islands -26.224°, -176.613° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place south of the Fiji Islands on December 20, 2022 at 22:39 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 22:06:34 UTC | 4.3mw | 6km WSW of Ferndale, CA 40.545°, -124.329° | 19.7 km | 92 | IV | green | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 6km WSW of Ferndale, CA on December 20, 2022, with origin time 22:06 UTC. A tsunami evaluation was automatically initiated given the magnitude and location. Coming 12 hours after a magnitude 6.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 22:01:19 UTC | 2.6md | 4km N of Hydesville, CA 40.580°, -124.106° | 21.7 km | 2 | - | - | ✓ Reviewed | USGS → |
At 22:01 UTC on December 20, 2022, a magnitude 2.6 tremor occurred 4km N of Hydesville, CA. It arrived roughly 11 hours after a larger magnitude 4.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 21:51:18 UTC | 4.1mb | 277 km S of Sinabang, Indonesia -0.012°, 96.667° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:51 UTC on December 20, 2022, a magnitude 4.1 tremor occurred 277 km S of Sinabang, Indonesia. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 21:46:28 UTC | 2.0ml | Rat Islands, Aleutian Islands, Alaska 51.434°, 178.744° | 29.8 km | - | - | - | ✓ Reviewed | USGS → |
On December 20, 2022 at 21:46 UTC, a magnitude 2.0 earthquake struck near Rat Islands, Aleutian Islands, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 21:36:57 UTC | 3.1ml | 154 km WSW of Adak, Alaska 51.134°, -178.524° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 154 km WSW of Adak, Alaska at 21:36 UTC on December 20, 2022. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 21:21:15 UTC | 4.3mb | Myanmar 24.534°, 96.154° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake near Myanmar came in on December 20, 2022 at 21:21 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 21:07:43 UTC | 2.0md | 13km WSW of Ferndale, CA 40.520°, -124.404° | 18.0 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 13km WSW of Ferndale, CA on December 20, 2022 at 21:07 UTC. It arrived roughly 11 hours after a larger magnitude 6.4 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. | ||||||||
2022-12-20 2022-12-20 20:57:53 UTC | 2.0md | 6 km SSW of Indios, Puerto Rico 17.944°, -66.843° | 16.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 6 km SSW of Indios, Puerto Rico on December 20, 2022 at 20:57 UTC. Coming 16 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 20:53:32 UTC | 2.0ml | 99 km SSE of Chignik, Alaska 55.479°, -157.759° | 10.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 99 km SSE of Chignik, Alaska with origin time 20:53 UTC on December 20, 2022. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 20:32:13 UTC | 2.4ml | 102 km WNW of Emmonak, Alaska 63.189°, -166.342° | 17.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 102 km WNW of Emmonak, Alaska on December 20, 2022, with origin time 20:32 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 20:31:40 UTC | 2.1md | 4 km SW of P?hala, Hawaii 19.170°, -155.505° | 33.8 km | 2 | - | - | Auto | USGS → |
December 20, 2022 brought a magnitude 2.1 earthquake 4 km SW of P?hala, Hawaii, logged at 20:31 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.6 earthquake that occurred about 16 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 20:26:41 UTC | 2.3md | 4km WNW of Hydesville, CA 40.561°, -124.138° | 21.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 4km WNW of Hydesville, CA on December 20, 2022 at 20:26 UTC. It arrived roughly 10 hours after a larger magnitude 4.9 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. | ||||||||
2022-12-20 2022-12-20 20:25:47 UTC | 2.5md | 7km WSW of Ferndale, CA 40.547°, -124.339° | 15.4 km | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 7km WSW of Ferndale, CA on December 20, 2022 at 20:25 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.4 earthquake that occurred about 10 hours earlier. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 20:10:26 UTC | 2.8md | 13km WNW of Bayview, CA 40.815°, -124.328° | 26.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 earthquake was recorded 13km WNW of Bayview, CA on December 20, 2022 at 20:10 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 20:09:30 UTC | 2.0ml | 82 km ENE of Nikolski, Alaska 53.146°, -167.688° | 13.2 km | - | - | - | ✓ Reviewed | USGS → |
On December 20, 2022, worldwide seismic activity registered a magnitude 2.0 earthquake 82 km ENE of Nikolski, Alaska at 20:09 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 19:58:10 UTC | 3.0ml | 169 km SE of King Cove, Alaska 53.806°, -160.826° | 19.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 20, 2022 at 19:58 UTC, a magnitude 3.0 earthquake struck 169 km SE of King Cove, Alaska. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 19:49:41 UTC | 2.0md | 5km SW of Ferndale, CA 40.545°, -124.307° | 16.6 km | - | - | - | ✓ Reviewed | USGS → |
December 20, 2022 brought a magnitude 2.0 earthquake 5km SW of Ferndale, CA, logged at 19:49 UTC. It arrived roughly 9 hours after a larger magnitude 6.4 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. | ||||||||
2022-12-20 2022-12-20 19:47:33 UTC | 2.1ml | 32 km WSW of Denali Park, Alaska 63.661°, -149.548° | 115.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 32 km WSW of Denali Park, Alaska on December 20, 2022 at 19:47 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2022-12-20 2022-12-20 19:38:53 UTC | 4.3mb | 265 km WNW of Haveluloto, Tonga -20.174°, -177.535° | 492.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 265 km WNW of Haveluloto, Tonga on December 20, 2022 at 19:38 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. | ||||||||
2022-12-20 2022-12-20 19:33:26 UTC | 2.1ml | 5 km NNE of Ninnekah, Oklahoma 34.997°, -97.900° | 9.2 km | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 5 km NNE of Ninnekah, Oklahoma on December 20, 2022 at 19:33 UTC. 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 20, 2022. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.