Earthquakes on December 8, 2020
335
EARTHQUAKES on December 8, 2020
24-hour UTC period · USGS data
LARGEST: M5.5 — Volcano Islands, Japan region
20 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
30
M3.0–3.9
23
M2.0–2.9
98
M1.0–1.9
178
Activity Summary
335
Total earthquakes
~250
Daily average
Elevated
Activity level
6
M5.0+ events
Geographic Breakdown
Top Countries (International)
Significant Earthquakes (M4.5+)
5.5
Volcano Islands, Japan region
00:47 UTC · 20.0 km deep
5.4
Kermadec Islands region
23:33 UTC · 10.0 km deep
5.4
18 km ESE of El Carrizal, Mexico
17:56 UTC · 28.9 km deep
Felt by 15
5.1
77 km W of Monywa, Myanmar
05:14 UTC · 90.8 km deep
5.1
22 km SSW of Pizarro, Colombia
03:21 UTC · 35.0 km deep
Felt by 4
5.0
50 km NNW of La Ligua, Chile
07:07 UTC · 44.3 km deep
Felt by 33
4.8
56 km S of Tari, Papua New Guinea
17:55 UTC · 10.0 km deep
Felt by 1
4.8
Reykjanes Ridge
08:03 UTC · 10.0 km deep
Earthquake Map — December 8, 2020
All Earthquakes — December 8, 2020
Showing 30 of 157 (filtered from 335)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-12-08 2020-12-08 23:55:45 UTC | 2.1ml | Southern Alaska 61.022°, -150.842° | 19.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded near Southern Alaska on December 8, 2020 at 23:55 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 23:47:12 UTC | 2.3ml | 109 km SSE of Sand Point, Alaska 54.417°, -159.886° | 16.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 109 km SSE of Sand Point, Alaska on December 8, 2020 at 23:47 UTC. It arrived roughly 16 hours after a larger magnitude 3.2 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. | ||||||||
2020-12-08 2020-12-08 23:45:54 UTC | 3.6md | 89 km NE of Punta Cana, Dominican Republic 19.065°, -67.722° | 3.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.6 earthquake 89 km NE of Punta Cana, Dominican Republic came in on December 8, 2020 at 23:45 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 23:40:34 UTC | 2.8md | 8 km S of Guánica, Puerto Rico 17.890°, -66.909° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 8, 2020, worldwide seismic activity registered a magnitude 2.8 earthquake 8 km S of Guánica, Puerto Rico at 23:40 UTC. It arrived roughly 9 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 M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 23:33:39 UTC | 2.5md | 15km W of Lake Nacimiento, CA 35.724°, -121.041° | 3.0 km | 3 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 15km W of Lake Nacimiento, CA with origin time 23:33 UTC on December 8, 2020. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 23:33:31 UTC | 5.4mww | Kermadec Islands region -28.220°, -176.139° | 10.0 km | - | I | green | ✓ Reviewed | USGS → |
A magnitude 5.4 earthquake was recorded in the Kermadec Islands region on December 8, 2020 at 23:33 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 23:32:40 UTC | 2.6ml | 13 km E of Hebgen Lake Estates, Montana 44.775°, -111.017° | 7.1 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 13 km E of Hebgen Lake Estates, Montana at 23:32 UTC on December 8, 2020. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 23:27:52 UTC | 4.4mb | south of the Fiji Islands -26.028°, -177.405° | 158.6 km | - | - | - | ✓ Reviewed | USGS → |
On December 8, 2020, worldwide seismic activity registered a magnitude 4.4 earthquake south of the Fiji Islands at 23:27 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 23:22:36 UTC | 2.1ml | 24 km S of Mina, Nevada 38.170°, -118.067° | 5.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 24 km S of Mina, Nevada with origin time 23:22 UTC on December 8, 2020. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 6 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 22:53:42 UTC | 3.6ml | 28 km E of La Sal, Utah 38.272°, -108.923° | 0.4 km | 2 | IV | - | ✓ Reviewed | USGS → |
This magnitude 3.6 event was detected 28 km E of La Sal, Utah on December 8, 2020, with origin time 22:53 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 22:39:04 UTC | 4.4mb | 69 km SSW of Acajutla, El Salvador 13.058°, -90.163° | 57.1 km | - | - | - | ✓ Reviewed | USGS → |
At 22:39 UTC on December 8, 2020, a magnitude 4.4 tremor occurred 69 km SSW of Acajutla, El Salvador. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 22:37:42 UTC | 2.6ml | 17km N of Olancha, CA 36.437°, -117.999° | 4.4 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 17km N of Olancha, CA on December 8, 2020, with origin time 22:37 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 1 hours earlier. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 22:33:19 UTC | 3.2ml | 40 km WSW of Petersville, Alaska 62.366°, -151.499° | 96.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.2 earthquake 40 km WSW of Petersville, Alaska at 22:33 UTC on December 8, 2020. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 22:31:13 UTC | 2.7ml | 16km N of Olancha, CA 36.430°, -117.998° | 2.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 16km N of Olancha, CA on December 8, 2020, with origin time 22:31 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 21:48:50 UTC | 3.2ml | 60 km S of Kokhanok, Alaska 58.904°, -154.576° | 129.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.2 event was detected 60 km S of Kokhanok, Alaska on December 8, 2020, with origin time 21:48 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 21:31:24 UTC | 2.3ml | 5 km SSW of Driggs, Idaho 43.677°, -111.124° | 4.5 km | 3 | - | - | ✓ Reviewed | USGS → |
December 8, 2020 brought a magnitude 2.3 earthquake 5 km SSW of Driggs, Idaho, logged at 21:31 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 21:14:59 UTC | 2.3md | 6 km WSW of Guánica, Puerto Rico 17.951°, -66.963° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
December 8, 2020 brought a magnitude 2.3 earthquake 6 km WSW of Guánica, Puerto Rico, logged at 21:14 UTC. Coming 7 hours after a magnitude 3.0 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. | ||||||||
2020-12-08 2020-12-08 20:25:18 UTC | 2.1ml | 38 km NNE of Chenega, Alaska 60.399°, -147.851° | 9.5 km | - | - | - | ✓ Reviewed | USGS → |
On December 8, 2020, worldwide seismic activity registered a magnitude 2.1 earthquake 38 km NNE of Chenega, Alaska at 20:25 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 20:16:43 UTC | 2.4md | 5 km E of La Parguera, Puerto Rico 17.965°, -66.992° | 8.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 5 km E of La Parguera, Puerto Rico at 20:16 UTC on December 8, 2020. Coming 6 hours after a magnitude 3.0 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. | ||||||||
2020-12-08 2020-12-08 19:50:55 UTC | 2.8md | 19km W of Petrolia, CA 40.298°, -124.502° | 21.3 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake 19km W of Petrolia, CA at 19:50 UTC on December 8, 2020. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 19:42:07 UTC | 2.6md | 4 km SW of Guánica, Puerto Rico 17.938°, -66.935° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 4 km SW of Guánica, Puerto Rico came in on December 8, 2020 at 19:42 UTC. Coming 5 hours after a magnitude 3.0 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. | ||||||||
2020-12-08 2020-12-08 19:41:28 UTC | 2.3ml | 40 km ENE of Fox River, Alaska 60.049°, -150.332° | 55.7 km | - | - | - | ✓ Reviewed | USGS → |
On December 8, 2020 at 19:41 UTC, a magnitude 2.3 earthquake struck 40 km ENE of Fox River, Alaska. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 19:24:52 UTC | 2.2ml | 79 km SSW of Kaktovik, Alaska 69.467°, -144.337° | 5.7 km | - | - | - | ✓ Reviewed | USGS → |
At 19:24 UTC on December 8, 2020, a magnitude 2.2 tremor occurred 79 km SSW of Kaktovik, Alaska. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 18:55:04 UTC | 3.3md | 10 km SSW of Volcano, Hawaii 19.352°, -155.274° | 27.7 km | 27 | IV | - | ✓ Reviewed | USGS → |
On December 8, 2020, worldwide seismic activity registered a magnitude 3.3 earthquake 10 km SSW of Volcano, Hawaii at 18:55 UTC. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 18:38:37 UTC | 2.5ml | 24 km S of Mina, Nevada 38.169°, -118.085° | 3.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 24 km S of Mina, Nevada at 18:38 UTC on December 8, 2020. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 1 hours earlier. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 18:30:53 UTC | 3.1ml | 9 km NNW of Mountain Iron, Minnesota 47.613°, -92.668° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 8, 2020 at 18:30 UTC, a magnitude 3.1 earthquake struck 9 km NNW of Mountain Iron, Minnesota. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 18:12:33 UTC | 2.6md | 2 km W of Guánica, Puerto Rico 17.971°, -66.928° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 2 km W of Guánica, Puerto Rico on December 8, 2020 at 18:12 UTC. It arrived roughly 4 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 M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 17:56:42 UTC | 5.4mww | 18 km ESE of El Carrizal, Mexico 16.007°, -95.227° | 28.9 km | 15 | V | green | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.4 earthquake 18 km ESE of El Carrizal, Mexico with origin time 17:56 UTC on December 8, 2020. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 17:55:02 UTC | 4.8mb | 56 km S of Tari, Papua New Guinea -6.348°, 143.016° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 56 km S of Tari, Papua New Guinea on December 8, 2020, with origin time 17:55 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-08 2020-12-08 17:48:21 UTC | 3.1ml | 25 km S of Mina, Nevada 38.157°, -118.085° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 earthquake was recorded 25 km S of Mina, Nevada on December 8, 2020 at 17:48 UTC. In the 72 hours after this event, the USGS recorded 14 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.1 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 8, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.