Earthquakes on December 20, 2020
333
EARTHQUAKES on December 20, 2020
24-hour UTC period · USGS data
35 km deep · 48 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
40
M3.0–3.9
15
M2.0–2.9
61
M1.0–1.9
215
Activity Summary
333
Total earthquakes
~250
Daily average
Elevated
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
6.3
100 km ENE of Hachinohe, Japan
17:23 UTC · 35.0 km deep
Felt by 48
5.3
184 km SSW of Port-Vila, Vanuatu
20:43 UTC · 10.0 km deep
4.9
Antofagasta, Chile
23:36 UTC · 106.1 km deep
Felt by 2
4.9
South Sandwich Islands region
18:21 UTC · 10.0 km deep
4.9
109 km NNW of Ternate, Indonesia
11:40 UTC · 25.0 km deep
4.9
78 km ESE of ?funato, Japan
09:35 UTC · 43.0 km deep
Felt by 3
4.9
241 km SE of Katsuura, Japan
01:54 UTC · 10.0 km deep
4.8
102 km E of Pondaguitan, Philippines
19:07 UTC · 71.4 km deep
Earthquake Map — December 20, 2020
All Earthquakes — December 20, 2020
Showing 30 of 118 (filtered from 333)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-12-20 2020-12-20 23:36:04 UTC | 4.9mwr | Antofagasta, Chile -22.706°, -68.705° | 106.1 km | 2 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake near Antofagasta, Chile with origin time 23:36 UTC on December 20, 2020. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 23:27:04 UTC | 4.5mb | 158 km S of Severo-Kuril’sk, Russia 49.257°, 155.872° | 42.7 km | - | - | - | ✓ Reviewed | USGS → |
At 23:27 UTC on December 20, 2020, a magnitude 4.5 tremor occurred 158 km S of Severo-Kuril’sk, Russia. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 23:18:42 UTC | 2.6ml | 5km ENE of West Park, CA 36.733°, -119.800° | 27.5 km | 6 | - | - | ✓ Reviewed | USGS → |
On December 20, 2020, worldwide seismic activity registered a magnitude 2.6 earthquake 5km ENE of West Park, CA at 23:18 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 22:59:14 UTC | 4.0mb | 158 km SW of Nikolski, Alaska 51.873°, -170.407° | 40.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.0 seismic event took place 158 km SW of Nikolski, Alaska on December 20, 2020 at 22:59 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 22:48:36 UTC | 4.4mb | Fiji region -20.648°, -178.344° | 545.3 km | - | - | - | ✓ Reviewed | USGS → |
On December 20, 2020 at 22:48 UTC, a magnitude 4.4 earthquake struck in the Fiji region. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 22:42:23 UTC | 3.9mb | 140 km SE of Sand Point, Alaska 54.451°, -158.935° | 17.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.9 earthquake 140 km SE of Sand Point, Alaska with origin time 22:42 UTC on December 20, 2020. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 22:38:49 UTC | 2.4mb_lg | 7 km NE of Mayfield, Kansas 37.298°, -97.483° | 5.0 km | 11 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 7 km NE of Mayfield, Kansas at 22:38 UTC on December 20, 2020. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 22:24:16 UTC | 2.5ml | 15 km ESE of Fernley, Nevada 39.578°, -119.076° | 6.2 km | 12 | - | - | ✓ Reviewed | USGS → |
December 20, 2020 brought a magnitude 2.5 earthquake 15 km ESE of Fernley, Nevada, logged at 22:24 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 22:20:03 UTC | 4.0mb | 55 km NNE of Calama, Chile -22.005°, -68.683° | 121.3 km | - | - | - | ✓ Reviewed | USGS → |
December 20, 2020 brought a magnitude 4.0 earthquake 55 km NNE of Calama, Chile, logged at 22:20 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 22:13:50 UTC | 4.1mb | 80 km S of Gorontalo, Indonesia -0.189°, 123.038° | 68.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected 80 km S of Gorontalo, Indonesia on December 20, 2020, with origin time 22:13 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 21:51:14 UTC | 4.0mb | 60 km W of Kirakira, Solomon Islands -10.352°, 161.381° | 110.3 km | - | - | - | ✓ Reviewed | USGS → |
On December 20, 2020 at 21:51 UTC, a magnitude 4.0 earthquake struck 60 km W of Kirakira, Solomon Islands. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 21:46:06 UTC | 4.3mb | 118 km ESE of Sola, Vanuatu -14.418°, 168.495° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 118 km ESE of Sola, Vanuatu came in on December 20, 2020 at 21:46 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 21:23:57 UTC | 2.0ml | 13 km ESE of Fernley, Nevada 39.579°, -119.100° | 0.4 km | 1 | - | - | Auto | USGS → |
At 21:23 UTC on December 20, 2020, a magnitude 2.0 tremor occurred 13 km ESE of Fernley, Nevada. 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. | ||||||||
2020-12-20 2020-12-20 21:22:42 UTC | 2.1ml | 98 km SSE of Sand Point, Alaska 54.568°, -159.728° | 24.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 98 km SSE of Sand Point, Alaska at 21:22 UTC on December 20, 2020. It arrived roughly 19 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. | ||||||||
2020-12-20 2020-12-20 21:19:59 UTC | 2.1ml | 3 km SE of Bellaire, Kansas 37.739°, -97.237° | 5.0 km | 4 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 3 km SE of Bellaire, Kansas on December 20, 2020, with origin time 21:19 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 19 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 20:43:50 UTC | 5.3mww | 184 km SSW of Port-Vila, Vanuatu -19.218°, 167.511° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.3 earthquake was recorded 184 km SSW of Port-Vila, Vanuatu on December 20, 2020 at 20:43 UTC. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 20:38:04 UTC | 2.4ml | 85 km SW of Nikolski, Alaska 52.395°, -169.749° | 24.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 85 km SW of Nikolski, Alaska on December 20, 2020, with origin time 20:38 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 20:37:10 UTC | 2.1md | 3 km SSW of Indios, Puerto Rico 17.967°, -66.834° | 14.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 3 km SSW of Indios, Puerto Rico on December 20, 2020 at 20:37 UTC. It arrived roughly 1 hours after a larger magnitude 2.6 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. | ||||||||
2020-12-20 2020-12-20 20:20:15 UTC | 2.4md | 3 km SW of Indios, Puerto Rico 17.968°, -66.840° | 14.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 3 km SW of Indios, Puerto Rico with origin time 20:20 UTC on December 20, 2020. This event falls inside the aftershock decay of a nearby magnitude 2.6 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 20:13:56 UTC | 2.3ml | 10 km NE of Stanley, Idaho 44.283°, -114.851° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 10 km NE of Stanley, Idaho at 20:13 UTC on December 20, 2020. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 20:13:15 UTC | 2.4ml | 53 km NNW of Petersville, Alaska 62.915°, -151.281° | 109.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 53 km NNW of Petersville, Alaska came in on December 20, 2020 at 20:13 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 20:10:34 UTC | 3.0ml | south of Alaska 54.169°, -159.676° | 20.8 km | - | - | - | ✓ Reviewed | USGS → |
At 20:10 UTC on December 20, 2020, a magnitude 3.0 tremor occurred south of Alaska. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 20:08:36 UTC | 2.6md | 8 km S of Tallaboa, Puerto Rico 17.921°, -66.709° | 6.0 km | 1 | - | - | ✓ Reviewed | USGS → |
At 20:08 UTC on December 20, 2020, a magnitude 2.6 tremor occurred 8 km S of Tallaboa, Puerto Rico. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 19:50:35 UTC | 2.3ml | 116 km SSE of Sand Point, Alaska 54.346°, -159.890° | 20.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 116 km SSE of Sand Point, Alaska on December 20, 2020, with origin time 19:50 UTC. Coming 15 hours after a magnitude 2.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 19:47:41 UTC | 4.4mb | 74 km WSW of Palana, Russia 58.755°, 158.824° | 12.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 74 km WSW of Palana, Russia on December 20, 2020 at 19:47 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 19:34:15 UTC | 2.0ml | 109 km SE of Akutan, Alaska 53.488°, -164.526° | 24.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 109 km SE of Akutan, Alaska at 19:34 UTC on December 20, 2020. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 19:07:37 UTC | 4.8mb | 102 km E of Pondaguitan, Philippines 6.328°, 127.105° | 71.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake 102 km E of Pondaguitan, Philippines came in on December 20, 2020 at 19:07 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 18:58:00 UTC | 2.2md | 2 km SW of Guánica, Puerto Rico 17.953°, -66.926° | 14.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 2 km SW of Guánica, Puerto Rico with origin time 18:58 UTC on December 20, 2020. Coming 6 hours after a magnitude 2.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 18:57:42 UTC | 4.4mb | 202 km SW of Merizo Village, Guam 11.787°, 143.565° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 202 km SW of Merizo Village, Guam with origin time 18:57 UTC on December 20, 2020. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-20 2020-12-20 18:45:08 UTC | 4.3mb | 47 km N of Torbat-e J?m, Iran 35.672°, 60.658° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 47 km N of Torbat-e J?m, Iran on December 20, 2020 at 18:45 UTC. The event was offshore. See the M4.3 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, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.