Earthquakes on January 3, 2021
421
EARTHQUAKES on January 3, 2021
24-hour UTC period · USGS data
LARGEST: M6.1 — 230 km WSW of Adak, Alaska
21 km deep · 3 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
28
M3.0–3.9
17
M2.0–2.9
98
M1.0–1.9
272
Activity Summary
421
Total earthquakes
~250
Daily average
Elevated
Activity level
6
M5.0+ events
Significant Earthquakes (M4.5+)
6.1
230 km WSW of Adak, Alaska
12:38 UTC · 21.0 km deep
Felt by 3
5.2
central Mid-Atlantic Ridge
05:25 UTC · 10.0 km deep
5.1
127 km ESE of Neiafu, Tonga
04:57 UTC · 10.0 km deep
5.1
southern Mid-Atlantic Ridge
03:27 UTC · 10.0 km deep
5.1
southern Mid-Atlantic Ridge
03:21 UTC · 10.0 km deep
5.0
138 km NNW of Kendari, Indonesia
19:13 UTC · 10.0 km deep
Felt by 1
4.9
southeast of Easter Island
21:15 UTC · 10.0 km deep
4.9
11 km NNE of Larsen Bay, Alaska
08:45 UTC · 59.6 km deep
Felt by 83
Earthquake Map — January 3, 2021
All Earthquakes — January 3, 2021
Showing 30 of 149 (filtered from 421)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-01-03 2021-01-03 23:59:14 UTC | 2.1md | Puerto Rico region 17.946°, -66.847° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:59 UTC on January 3, 2021, a magnitude 2.1 tremor occurred in the Puerto Rico region. It arrived roughly 19 hours after a larger magnitude 2.9 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. | ||||||||
2021-01-03 2021-01-03 23:50:22 UTC | 2.5md | 1 km SW of Fuig, Puerto Rico 17.974°, -66.928° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 1 km SW of Fuig, Puerto Rico came in on January 3, 2021 at 23:50 UTC. Coming 19 hours after a magnitude 2.9 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. | ||||||||
2021-01-03 2021-01-03 23:45:17 UTC | 2.3md | 4 km ESE of La Parguera, Puerto Rico 17.959°, -67.007° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
On January 3, 2021 at 23:45 UTC, a magnitude 2.3 earthquake struck 4 km ESE of La Parguera, Puerto Rico. It arrived roughly 18 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. | ||||||||
2021-01-03 2021-01-03 23:33:02 UTC | 2.0ml | 97 km SSE of Sand Point, Alaska 54.554°, -159.805° | 14.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 97 km SSE of Sand Point, Alaska on January 3, 2021 at 23:33 UTC. It arrived roughly 4 hours after a larger magnitude 2.8 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. | ||||||||
2021-01-03 2021-01-03 23:30:26 UTC | 2.2ml | 61 km SE of Denali National Park, Alaska 63.154°, -150.854° | 128.5 km | - | - | - | ✓ Reviewed | USGS → |
January 3, 2021 brought a magnitude 2.2 earthquake 61 km SE of Denali National Park, Alaska, logged at 23:30 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 22:51:26 UTC | 4.0mb | 231 km WSW of Adak, Alaska 51.195°, -179.785° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.0 earthquake 231 km WSW of Adak, Alaska with origin time 22:51 UTC on January 3, 2021. Coming 10 hours after a magnitude 6.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 22:41:27 UTC | 2.4md | 4 km SSW of Indios, Puerto Rico 17.955°, -66.841° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 4 km SSW of Indios, Puerto Rico at 22:41 UTC on January 3, 2021. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 17 hours earlier. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 22:39:00 UTC | 2.0md | 2 km NE of Guayanilla, Puerto Rico 18.037°, -66.779° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 2 km NE of Guayanilla, Puerto Rico with origin time 22:39 UTC on January 3, 2021. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 17 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 22:21:21 UTC | 2.1md | 5 km SSW of Guánica, Puerto Rico 17.922°, -66.919° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
On January 3, 2021 at 22:21 UTC, a magnitude 2.1 earthquake struck 5 km SSW of Guánica, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 17 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 22:05:14 UTC | 2.1ml | 110 km SSE of Sand Point, Alaska 54.391°, -159.956° | 23.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 110 km SSE of Sand Point, Alaska on January 3, 2021 at 22:05 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.3 earthquake that occurred about 9 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 22:04:00 UTC | 2.1md | 16 km SSE of Maria Antonia, Puerto Rico 17.845°, -66.822° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 16 km SSE of Maria Antonia, Puerto Rico on January 3, 2021 at 22:04 UTC. Coming 17 hours after a magnitude 2.9 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. | ||||||||
2021-01-03 2021-01-03 21:53:35 UTC | 4.5mb | 142 km NNW of Kendari, Indonesia -2.735°, 122.190° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On January 3, 2021, worldwide seismic activity registered a magnitude 4.5 earthquake 142 km NNW of Kendari, Indonesia at 21:53 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 3 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 21:34:00 UTC | 2.2ml | 13km NE of Ridgecrest, CA 35.685°, -117.559° | 10.3 km | - | - | - | ✓ Reviewed | USGS → |
January 3, 2021 brought a magnitude 2.2 earthquake 13km NE of Ridgecrest, CA, logged at 21:34 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 18 hours earlier. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 21:33:23 UTC | 4.2mb | 33 km E of Xunchang, China 28.459°, 105.055° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:33 UTC on January 3, 2021, a magnitude 4.2 tremor occurred 33 km E of Xunchang, China. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 21:32:17 UTC | 2.7md | 6 km SE of Maria Antonia, Puerto Rico 17.935°, -66.847° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:32 UTC on January 3, 2021, a magnitude 2.7 tremor occurred 6 km SE of Maria Antonia, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 16 hours earlier. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 21:26:59 UTC | 4.5mb | Kermadec Islands region -31.995°, -178.295° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:26 UTC on January 3, 2021, a magnitude 4.5 tremor occurred in the Kermadec Islands region. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 21:18:08 UTC | 2.4md | 3 km SSE of Maria Antonia, Puerto Rico 17.951°, -66.871° | 16.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 3 km SSE of Maria Antonia, Puerto Rico on January 3, 2021, with origin time 21:18 UTC. Coming 16 hours after a magnitude 2.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 21:15:33 UTC | 4.9mb | southeast of Easter Island -35.305°, -104.845° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.9 event was detected southeast of Easter Island on January 3, 2021, with origin time 21:15 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 21:05:57 UTC | 2.1ml | 106 km SSE of Sand Point, Alaska 54.511°, -159.673° | 23.4 km | - | - | - | ✓ Reviewed | USGS → |
January 3, 2021 brought a magnitude 2.1 earthquake 106 km SSE of Sand Point, Alaska, logged at 21:05 UTC. Coming 1 hours after a magnitude 2.8 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. | ||||||||
2021-01-03 2021-01-03 21:05:23 UTC | 2.0ml | 110 km SSE of Sand Point, Alaska 54.489°, -159.616° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
On January 3, 2021, worldwide seismic activity registered a magnitude 2.0 earthquake 110 km SSE of Sand Point, Alaska at 21:05 UTC. Coming 8 hours after a magnitude 3.3 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. | ||||||||
2021-01-03 2021-01-03 20:36:32 UTC | 2.1ml | 121 km SSE of Sand Point, Alaska 54.302°, -159.873° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
On January 3, 2021 at 20:36 UTC, a magnitude 2.1 earthquake struck 121 km SSE of Sand Point, Alaska. It arrived roughly 8 hours after a larger magnitude 3.3 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. | ||||||||
2021-01-03 2021-01-03 19:58:15 UTC | 2.5md | 3 km E of La Parguera, Puerto Rico 17.977°, -67.010° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 3 km E of La Parguera, Puerto Rico with origin time 19:58 UTC on January 3, 2021. It arrived roughly 15 hours after a larger magnitude 2.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 19:56:09 UTC | 2.8ml | south of Alaska 54.532°, -159.768° | 21.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake south of Alaska at 19:56 UTC on January 3, 2021. In the 72 hours after this event, the USGS recorded 4 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 19:44:36 UTC | 2.1ml | 129 km SSE of Sand Point, Alaska 54.231°, -159.854° | 22.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 129 km SSE of Sand Point, Alaska on January 3, 2021 at 19:44 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.3 earthquake that occurred about 7 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 19:27:58 UTC | 4.3mb | 99 km NNE of B?fq, Iran 32.479°, 55.654° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake 99 km NNE of B?fq, Iran with origin time 19:27 UTC on January 3, 2021. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 19:22:52 UTC | 2.3md | 9 km ESE of P?hala, Hawaii 19.177°, -155.393° | 33.7 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.3 earthquake 9 km ESE of P?hala, Hawaii at 19:22 UTC on January 3, 2021. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 19:13:57 UTC | 5.0mww | 138 km NNW of Kendari, Indonesia -2.757°, 122.240° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.0 earthquake 138 km NNW of Kendari, Indonesia at 19:13 UTC on January 3, 2021. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 19:11:48 UTC | 2.7ml | Gulf of Alaska 56.604°, -148.815° | 20.3 km | - | - | - | ✓ Reviewed | USGS → |
January 3, 2021 brought a magnitude 2.7 earthquake near Gulf of Alaska, logged at 19:11 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 18:57:23 UTC | 4.5mb | western Indian-Antarctic Ridge -50.847°, 131.526° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake near western Indian-Antarctic Ridge at 18:57 UTC on January 3, 2021. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-03 2021-01-03 18:52:27 UTC | 2.4ml | 22km E of Little Lake, CA 35.971°, -117.666° | 2.8 km | - | - | - | ✓ Reviewed | USGS → |
On January 3, 2021 at 18:52 UTC, a magnitude 2.4 earthquake struck 22km E of Little Lake, CA. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.4 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 January 3, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.