Earthquakes on December 29, 2020
Magnitude Breakdown
Activity Summary
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
2 km WSW of Petrinja, Croatia
11:19 UTC · 10.0 km deep
Felt by 1,782
central Mid-Atlantic Ridge
23:34 UTC · 10.0 km deep
212 km W of Bandon, Oregon
07:10 UTC · 10.0 km deep
Felt by 164
92 km W of Panguna, Papua New Guinea
06:23 UTC · 23.6 km deep
24 km SW of Sarangani, Philippines
16:21 UTC · 35.0 km deep
Felt by 2
90 km WSW of Panguna, Papua New Guinea
06:13 UTC · 10.0 km deep
92 km W of Panguna, Papua New Guinea
06:19 UTC · 10.0 km deep
6 km SW of Petrinja, Croatia
11:23 UTC · 10.0 km deep
Felt by 25
Earthquake Map — December 29, 2020

All Earthquakes — December 29, 2020
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-12-29 2020-12-29 23:35:21 UTC | 2.3md | 1km E of The Geysers, CA 38.779°, -122.744° | 0.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 1km E of The Geysers, CA came in on December 29, 2020 at 23:35 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. | ||||||||
2020-12-29 2020-12-29 23:34:57 UTC | 5.7mww | central Mid-Atlantic Ridge -0.760°, -21.101° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
A magnitude 5.7 earthquake was recorded near central Mid-Atlantic Ridge on December 29, 2020 at 23:34 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 23:30:16 UTC | 2.8ml | 148 km SE of Sand Point, Alaska 54.432°, -158.795° | 19.6 km | - | - | - | ✓ Reviewed | USGS → |
December 29, 2020 brought a magnitude 2.8 earthquake 148 km SE of Sand Point, Alaska, logged at 23:30 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 23:20:13 UTC | 4.3mb | 48 km SW of Sarangani, Philippines 5.090°, 125.158° | 44.3 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2020, worldwide seismic activity registered a magnitude 4.3 earthquake 48 km SW of Sarangani, Philippines at 23:20 UTC. It arrived roughly 6 hours after a larger magnitude 4.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 23:15:08 UTC | 2.1ml | 111 km WSW of Adak, Alaska 51.605°, -178.193° | 68.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 111 km WSW of Adak, Alaska at 23:15 UTC on December 29, 2020. Coming 19 hours after a magnitude 3.2 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. | ||||||||
2020-12-29 2020-12-29 23:02:56 UTC | 2.8ml | 114 km SSE of Sand Point, Alaska 54.355°, -159.944° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2020 at 23:02 UTC, a magnitude 2.8 earthquake struck 114 km SSE of Sand Point, Alaska. Coming 1 hours after a magnitude 3.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 23:02:46 UTC | 2.3md | Puerto Rico region 17.909°, -66.847° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded in the Puerto Rico region on December 29, 2020 at 23:02 UTC. It arrived roughly 1 hours after a larger magnitude 3.1 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. | ||||||||
2020-12-29 2020-12-29 22:57:28 UTC | 2.1md | 22km NW of Petrolia, CA 40.440°, -124.495° | 20.3 km | - | - | - | ✓ Reviewed | USGS → |
At 22:57 UTC on December 29, 2020, a magnitude 2.1 tremor occurred 22km NW of Petrolia, CA. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 22:29:18 UTC | 3.8mb | 119 km SSE of Sand Point, Alaska 54.376°, -159.672° | 20.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.8 earthquake 119 km SSE of Sand Point, Alaska at 22:29 UTC on December 29, 2020. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 22:23:47 UTC | 2.5md | 8 km SE of Maria Antonia, Puerto Rico 17.915°, -66.841° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
December 29, 2020 brought a magnitude 2.5 earthquake 8 km SE of Maria Antonia, Puerto Rico, logged at 22:23 UTC. Coming 1 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 M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 22:19:29 UTC | 2.1ml | 5 km ENE of P?hala, Hawaii 19.215°, -155.428° | 31.5 km | - | - | - | Auto | USGS → |
On December 29, 2020, worldwide seismic activity registered a magnitude 2.1 earthquake 5 km ENE of P?hala, Hawaii at 22:19 UTC. It arrived roughly 14 hours after a larger magnitude 2.3 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. | ||||||||
2020-12-29 2020-12-29 22:17:39 UTC | 3.0ml | 85 km S of Point Hope, Alaska 67.582°, -166.701° | 29.1 km | - | - | - | ✓ Reviewed | USGS → |
December 29, 2020 brought a magnitude 3.0 earthquake 85 km S of Point Hope, Alaska, logged at 22:17 UTC. It arrived roughly 1 hours after a larger magnitude 3.3 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 22:14:15 UTC | 3.1md | 8 km SE of Maria Antonia, Puerto Rico 17.918°, -66.844° | 12.0 km | 4 | - | - | ✓ Reviewed | USGS → |
At 22:14 UTC on December 29, 2020, a magnitude 3.1 tremor occurred 8 km SE of Maria Antonia, Puerto Rico. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 22:11:31 UTC | 2.2md | 1 km SSE of Yauco, Puerto Rico 18.024°, -66.847° | 18.0 km | - | - | - | ✓ Reviewed | USGS → |
December 29, 2020 brought a magnitude 2.2 earthquake 1 km SSE of Yauco, Puerto Rico, logged at 22:11 UTC. Coming 14 hours after a magnitude 3.1 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. | ||||||||
2020-12-29 2020-12-29 22:09:40 UTC | 2.7ml | 239 km WSW of Adak, Alaska 51.276°, -179.954° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2020, worldwide seismic activity registered a magnitude 2.7 earthquake 239 km WSW of Adak, Alaska at 22:09 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 22:08:08 UTC | 2.0ml | 0 km N of Willow, Alaska 61.752°, -150.036° | 39.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 0 km N of Willow, Alaska at 22:08 UTC on December 29, 2020. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 22:07:11 UTC | 3.3ml | 82 km S of Point Hope, Alaska 67.611°, -166.715° | 27.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 seismic event took place 82 km S of Point Hope, Alaska on December 29, 2020 at 22:07 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 21:43:42 UTC | 2.3ml | 11 km W of Stanley, Idaho 44.206°, -115.078° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2020 at 21:43 UTC, a magnitude 2.3 earthquake struck 11 km W of Stanley, Idaho. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 21:41:15 UTC | 2.2ml | 25 km WNW of Volcano, Hawaii 19.505°, -155.469° | 4.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 25 km WNW of Volcano, Hawaii on December 29, 2020, with origin time 21:41 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 21:33:38 UTC | 2.9ml | 56 km NE of Atka, Alaska 52.487°, -173.513° | 200.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.9 event was detected 56 km NE of Atka, Alaska on December 29, 2020, with origin time 21:33 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 20:59:38 UTC | 2.3ml | 11 km ENE of P?hala, Hawaii 19.229°, -155.375° | 31.5 km | 1 | - | - | Auto | USGS → |
This magnitude 2.3 event was detected 11 km ENE of P?hala, Hawaii on December 29, 2020, with origin time 20:59 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 13 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 20:53:55 UTC | 2.2ml | 88 km WSW of Karluk, Alaska 57.157°, -155.718° | 83.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 88 km WSW of Karluk, Alaska with origin time 20:53 UTC on December 29, 2020. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 20:31:26 UTC | 3.0ml | 133 km SSE of Sand Point, Alaska 54.254°, -159.597° | 24.4 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2020 at 20:31 UTC, a magnitude 3.0 earthquake struck 133 km SSE of Sand Point, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 2 hours earlier. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 20:28:55 UTC | 3.1md | 75 km NNW of San Antonio, Puerto Rico 19.156°, -67.262° | 22.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2020, worldwide seismic activity registered a magnitude 3.1 earthquake 75 km NNW of San Antonio, Puerto Rico at 20:28 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 19:45:42 UTC | 2.9md | 8 km SE of Maria Antonia, Puerto Rico 17.919°, -66.844° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
At 19:45 UTC on December 29, 2020, a magnitude 2.9 tremor occurred 8 km SE of Maria Antonia, Puerto Rico. 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 M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 19:29:27 UTC | 4.8mww | 9 km WSW of Pucón, Chile -39.314°, -72.055° | 107.5 km | 15 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.8 earthquake 9 km WSW of Pucón, Chile with origin time 19:29 UTC on December 29, 2020. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 19:16:42 UTC | 2.6ml | 18 km SE of Elkford, Canada 49.914°, -114.730° | -2.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 18 km SE of Elkford, Canada on December 29, 2020, with origin time 19:16 UTC. 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. | ||||||||
2020-12-29 2020-12-29 19:08:50 UTC | 4.4mb | 38 km SW of Sarangani, Philippines 5.139°, 125.242° | 55.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 38 km SW of Sarangani, Philippines came in on December 29, 2020 at 19:08 UTC. It arrived roughly 3 hours after a larger magnitude 5.3 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 19:00:37 UTC | 3.1ml | 151 km SSE of Sand Point, Alaska 54.137°, -159.371° | 21.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 151 km SSE of Sand Point, Alaska at 19:00 UTC on December 29, 2020. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-12-29 2020-12-29 18:55:55 UTC | 3.2ml | 104 km SSE of Sand Point, Alaska 54.536°, -159.644° | 27.3 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2020 at 18:55 UTC, a magnitude 3.2 earthquake struck 104 km SSE of Sand Point, Alaska. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
About This Page
This page shows all earthquakes recorded by the USGS Earthquake Hazards Program during the 24-hour UTC period on December 29, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.