Earthquakes on December 31, 2020
294
EARTHQUAKES on December 31, 2020
24-hour UTC period · USGS data
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
30
M3.0–3.9
17
M2.0–2.9
77
M1.0–1.9
168
Activity Summary
294
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
5.2
144 km NNW of Lorengau, Papua New Guinea
19:50 UTC · 10.0 km deep
5.1
15 km SSE of Maumere, Indonesia
10:18 UTC · 130.1 km deep
Felt by 1
4.9
41 km SE of Shimoda, Japan
16:53 UTC · 15.5 km deep
4.9
191 km SW of Sibolga, Indonesia
10:49 UTC · 26.1 km deep
4.8
74 km SSE of Bima, Indonesia
23:12 UTC · 85.7 km deep
Felt by 1
4.7
south of the Fiji Islands
11:52 UTC · 553.4 km deep
4.7
176 km WSW of Bandar Lampung, Indonesia
02:33 UTC · 35.0 km deep
4.6
southern Mid-Atlantic Ridge
15:33 UTC · 10.0 km deep
Earthquake Map — December 31, 2020
All Earthquakes — December 31, 2020
Showing 30 of 126 (filtered from 294)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-12-31 2020-12-31 23:51:23 UTC | 2.9ml | 24 km SW of Petersville, Alaska 62.361°, -151.137° | 72.4 km | - | - | - | ✓ Reviewed | USGS → |
On December 31, 2020 at 23:51 UTC, a magnitude 2.9 earthquake struck 24 km SW of Petersville, Alaska. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 23:40:30 UTC | 2.3ml | 104 km SSE of Sand Point, Alaska 54.501°, -159.744° | 24.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:40 UTC on December 31, 2020, a magnitude 2.3 tremor occurred 104 km SSE of Sand Point, Alaska. It arrived roughly 1 hours after a larger magnitude 2.9 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. | ||||||||
2020-12-31 2020-12-31 23:38:15 UTC | 2.4ml | 34 km NW of Stanley, Idaho 44.460°, -115.199° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 31, 2020 at 23:38 UTC, a magnitude 2.4 earthquake struck 34 km NW of Stanley, Idaho. Coming 12 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 23:32:33 UTC | 3.6ml | 55 km S of Ivanof Bay, Alaska 55.404°, -159.377° | 7.1 km | - | I | - | ✓ Reviewed | USGS → |
At 23:32 UTC on December 31, 2020, a magnitude 3.6 tremor occurred 55 km S of Ivanof Bay, Alaska. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 23:26:24 UTC | 2.0ml | 46 km WNW of Happy Valley, Alaska 60.050°, -152.548° | 96.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 46 km WNW of Happy Valley, Alaska at 23:26 UTC on December 31, 2020. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 23:12:35 UTC | 4.8mb | 74 km SSE of Bima, Indonesia -9.111°, 118.916° | 85.7 km | 1 | - | - | ✓ Reviewed | USGS → |
At 23:12 UTC on December 31, 2020, a magnitude 4.8 tremor occurred 74 km SSE of Bima, Indonesia. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 23:10:04 UTC | 2.9ml | 111 km SSE of Sand Point, Alaska 54.438°, -159.725° | 19.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 earthquake was recorded 111 km SSE of Sand Point, Alaska on December 31, 2020 at 23:10 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 22:57:28 UTC | 2.7ml | 253 km ESE of Chiniak, Alaska 56.495°, -148.641° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.7 earthquake 253 km ESE of Chiniak, Alaska came in on December 31, 2020 at 22:57 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 22:43:48 UTC | 2.2ml | 99 km SSE of Sand Point, Alaska 54.547°, -159.764° | 10.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 99 km SSE of Sand Point, Alaska on December 31, 2020 at 22:43 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 10 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 22:43:07 UTC | 2.3md | 12km WSW of Rio Dell, CA 40.452°, -124.230° | 20.4 km | - | - | - | ✓ Reviewed | USGS → |
December 31, 2020 brought a magnitude 2.3 earthquake 12km WSW of Rio Dell, CA, logged at 22:43 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 22:37:30 UTC | 2.7ml | 37 km SE of Mina, Nevada 38.183°, -117.770° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 seismic event took place 37 km SE of Mina, Nevada on December 31, 2020 at 22:37 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 22:29:03 UTC | 2.6ml | 90 km SE of Sand Point, Alaska 54.824°, -159.399° | 22.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.6 earthquake 90 km SE of Sand Point, Alaska with origin time 22:29 UTC on December 31, 2020. Coming 12 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 22:21:28 UTC | 2.1ml | 10km NW of Calipatria, CA 33.176°, -115.600° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
December 31, 2020 brought a magnitude 2.1 earthquake 10km NW of Calipatria, CA, logged at 22:21 UTC. 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. | ||||||||
2020-12-31 2020-12-31 21:59:03 UTC | 2.9ml | Andreanof Islands, Aleutian Islands, Alaska 51.626°, -175.334° | 11.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.9 earthquake near Andreanof Islands, Aleutian Islands, Alaska with origin time 21:59 UTC on December 31, 2020. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 21:44:02 UTC | 2.1md | 8 km ENE of P?hala, Hawaii 19.234°, -155.407° | 32.8 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.1 earthquake 8 km ENE of P?hala, Hawaii came in on December 31, 2020 at 21:44 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 5 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 21:18:00 UTC | 3.3md | 46 km NNW of San Antonio, Puerto Rico 18.899°, -67.219° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 31, 2020 at 21:18 UTC, a magnitude 3.3 earthquake struck 46 km NNW of San Antonio, Puerto Rico. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 21:13:14 UTC | 4.3mb | 110 km WSW of Abra Pampa, Argentina -22.939°, -66.745° | 284.3 km | - | - | - | ✓ Reviewed | USGS → |
December 31, 2020 brought a magnitude 4.3 earthquake 110 km WSW of Abra Pampa, Argentina, logged at 21:13 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 20:56:56 UTC | 2.4mb_lg | 18 km N of Stanton, Texas 32.294°, -101.790° | 10.3 km | 2 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 18 km N of Stanton, Texas at 20:56 UTC on December 31, 2020. It arrived roughly 1 hours after a larger magnitude 4.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 20:44:20 UTC | 4.0mwr | 18 km N of Stanton, Texas 32.295°, -101.794° | 5.0 km | 34 | IV | green | ✓ Reviewed | USGS → |
On December 31, 2020 at 20:44 UTC, a magnitude 4.0 earthquake struck 18 km N of Stanton, Texas. 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. | ||||||||
2020-12-31 2020-12-31 20:31:12 UTC | 2.4ml | 16 km NE of Pedro Bay, Alaska 59.884°, -153.873° | 159.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 16 km NE of Pedro Bay, Alaska on December 31, 2020, with origin time 20:31 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 20:19:33 UTC | 4.3mb | 81 km SW of Ambanja, Madagascar -14.114°, 47.854° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 31, 2020 at 20:19 UTC, a magnitude 4.3 earthquake struck 81 km SW of Ambanja, Madagascar. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 20:14:46 UTC | 2.0md | 8 km ENE of P?hala, Hawaii 19.225°, -155.399° | 33.3 km | - | - | - | Auto | USGS → |
This magnitude 2.0 event was detected 8 km ENE of P?hala, Hawaii on December 31, 2020, with origin time 20:14 UTC. Coming 4 hours after a magnitude 2.5 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. | ||||||||
2020-12-31 2020-12-31 19:50:17 UTC | 5.2mww | 144 km NNW of Lorengau, Papua New Guinea -0.805°, 146.841° | 10.0 km | - | III | green | ✓ Reviewed | USGS → |
On December 31, 2020 at 19:50 UTC, a magnitude 5.2 earthquake struck 144 km NNW of Lorengau, Papua New Guinea. 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 31, 2020. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 19:12:33 UTC | 3.6mwr | 17 km N of Stanton, Texas 32.291°, -101.793° | 8.0 km | 9 | IV | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.6 earthquake 17 km N of Stanton, Texas at 19:12 UTC on December 31, 2020. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 18:54:44 UTC | 2.1ml | 4 km NE of Eastborough, Kansas 37.713°, -97.225° | 5.0 km | 14 | - | - | ✓ Reviewed | USGS → |
On December 31, 2020 at 18:54 UTC, a magnitude 2.1 earthquake struck 4 km NE of Eastborough, Kansas. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 14 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 18:36:21 UTC | 2.1ml | 13 km SW of Falls City, Texas 28.891°, -98.108° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 13 km SW of Falls City, Texas on December 31, 2020 at 18:36 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 18:31:55 UTC | 2.4md | 2 km NE of P?hala, Hawaii 19.219°, -155.456° | 33.3 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.4 earthquake 2 km NE of P?hala, Hawaii with origin time 18:31 UTC on December 31, 2020. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 2 hours earlier. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 18:21:33 UTC | 3.3mb_lg | 18 km N of Stanton, Texas 32.296°, -101.800° | 5.8 km | 10 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.3 earthquake 18 km N of Stanton, Texas with origin time 18:21 UTC on December 31, 2020. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-31 2020-12-31 17:59:47 UTC | 2.1md | 5 km ENE of Medford, Oregon 42.345°, -122.818° | -1.0 km | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 5 km ENE of Medford, Oregon on December 31, 2020 at 17:59 UTC. 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. | ||||||||
2020-12-31 2020-12-31 17:59:04 UTC | 2.2ml | south of Alaska 54.400°, -159.774° | 24.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake south of Alaska with origin time 17:59 UTC on December 31, 2020. Coming 5 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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 December 31, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.