Earthquakes on January 31, 2021
285
EARTHQUAKES on January 31, 2021
24-hour UTC period · USGS data
LARGEST: M5.5 — 82 km SSE of Lethem, Guyana
5 km deep · 38 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
30
M3.0–3.9
18
M2.0–2.9
59
M1.0–1.9
175
Activity Summary
285
Total earthquakes
~250
Daily average
Normal
Activity level
3
M5.0+ events
Significant Earthquakes (M4.5+)
5.5
82 km SSE of Lethem, Guyana
19:05 UTC · 5.2 km deep
Felt by 38
5.3
112 km E of Tual, Indonesia
09:44 UTC · 10.0 km deep
5.0
Mariana Islands region
05:11 UTC · 10.0 km deep
4.9
114 km N of M?n?b, Iran
22:06 UTC · 10.0 km deep
4.9
111 km NNE of Bandar Abbas, Iran
16:04 UTC · 10.0 km deep
Felt by 1
4.9
Volcano Islands, Japan region
15:51 UTC · 132.5 km deep
4.9
61 km W of San Antonio de los Cobres, Argentina
03:59 UTC · 170.9 km deep
Felt by 2
4.9
34 km ENE of Bacolod, Philippines
00:34 UTC · 18.2 km deep
Earthquake Map — January 31, 2021
All Earthquakes — January 31, 2021
Showing 30 of 110 (filtered from 285)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-01-31 2021-01-31 23:45:40 UTC | 2.0ml | 50 km SW of Nanwalek, Alaska 59.014°, -152.489° | 73.0 km | - | - | - | ✓ Reviewed | USGS → |
On January 31, 2021 at 23:45 UTC, a magnitude 2.0 earthquake struck 50 km SW of Nanwalek, Alaska. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 23:20:49 UTC | 4.7mwr | 29 km SW of Villa Basilio Nievas, Argentina -31.749°, -68.934° | 17.3 km | 12 | - | - | ✓ Reviewed | USGS → |
January 31, 2021 brought a magnitude 4.7 earthquake 29 km SW of Villa Basilio Nievas, Argentina, logged at 23:20 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 23:08:17 UTC | 4.1mb | Fiji region -15.490°, -177.205° | 426.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake in the Fiji region came in on January 31, 2021 at 23:08 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 22:54:19 UTC | 4.7mb | 103 km SW of Basco, Philippines 19.753°, 121.316° | 46.7 km | - | - | - | ✓ Reviewed | USGS → |
On January 31, 2021 at 22:54 UTC, a magnitude 4.7 earthquake struck 103 km SW of Basco, Philippines. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 22:30:19 UTC | 2.1ml | 94 km SSE of Sand Point, Alaska 54.626°, -159.695° | 24.7 km | - | - | - | ✓ Reviewed | USGS → |
At 22:30 UTC on January 31, 2021, a magnitude 2.1 tremor occurred 94 km SSE of Sand Point, Alaska. It arrived roughly 15 hours after a larger magnitude 2.5 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. | ||||||||
2021-01-31 2021-01-31 22:23:17 UTC | 2.7md | 2 km W of P?hala, Hawaii 19.207°, -155.501° | 35.3 km | 3 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 2 km W of P?hala, Hawaii on January 31, 2021, with origin time 22:23 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 22:15:08 UTC | 2.2ml | 5 km WSW of Princeton, Canada 49.443°, -120.580° | -0.4 km | - | - | - | ✓ Reviewed | USGS → |
On January 31, 2021 at 22:15 UTC, a magnitude 2.2 earthquake struck 5 km WSW of Princeton, Canada. 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. | ||||||||
2021-01-31 2021-01-31 22:06:00 UTC | 4.9mb | 114 km N of M?n?b, Iran 28.152°, 57.257° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On January 31, 2021, worldwide seismic activity registered a magnitude 4.9 earthquake 114 km N of M?n?b, Iran at 22:06 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 21:51:14 UTC | 4.0mb | 184 km ENE of Olonkinbyen, Svalbard and Jan Mayen 71.321°, -3.758° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.0 earthquake was recorded 184 km ENE of Olonkinbyen, Svalbard and Jan Mayen on January 31, 2021 at 21:51 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 21:34:54 UTC | 3.5md | 76 km NNE of Luquillo, Puerto Rico 19.000°, -65.412° | 46.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:34 UTC on January 31, 2021, a magnitude 3.5 tremor occurred 76 km NNE of Luquillo, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 3.6 earthquake that occurred about 3 hours earlier. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 21:26:30 UTC | 3.3md | 78 km NNE of Luquillo, Puerto Rico 19.025°, -65.422° | 30.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 earthquake was recorded 78 km NNE of Luquillo, Puerto Rico on January 31, 2021 at 21:26 UTC. Coming 3 hours after a magnitude 3.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 21:14:31 UTC | 3.5md | 82 km N of Culebra, Puerto Rico 19.044°, -65.359° | 28.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.5 earthquake 82 km N of Culebra, Puerto Rico at 21:14 UTC on January 31, 2021. Coming 2 hours after a magnitude 3.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:57:55 UTC | 4.3mb | 99 km SE of Pondaguitan, Philippines 5.638°, 126.715° | 18.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 99 km SE of Pondaguitan, Philippines on January 31, 2021 at 20:57 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:54:42 UTC | 4.2mb | 69 km SE of Pondaguitan, Philippines 5.844°, 126.540° | 75.5 km | - | - | - | ✓ Reviewed | USGS → |
At 20:54 UTC on January 31, 2021, a magnitude 4.2 tremor occurred 69 km SE of Pondaguitan, Philippines. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:50:37 UTC | 3.2md | 75 km NNE of Luquillo, Puerto Rico 18.998°, -65.440° | 24.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.2 earthquake 75 km NNE of Luquillo, Puerto Rico with origin time 20:50 UTC on January 31, 2021. It arrived roughly 2 hours after a larger magnitude 3.6 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:42:01 UTC | 2.6ml | 14km WNW of Calipatria, CA 33.171°, -115.649° | 5.1 km | 1 | - | - | ✓ Reviewed | USGS → |
On January 31, 2021 at 20:42 UTC, a magnitude 2.6 earthquake struck 14km WNW of Calipatria, CA. In the 72 hours after this event, the USGS recorded 11 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:39:03 UTC | 2.1ml | 30 km NW of Stanley, Idaho 44.438°, -115.165° | 9.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 30 km NW of Stanley, Idaho with origin time 20:39 UTC on January 31, 2021. Coming 1 hours after a magnitude 2.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:23:01 UTC | 2.1ml | 66 km NNE of Tanana, Alaska 65.750°, -151.732° | 7.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 66 km NNE of Tanana, Alaska at 20:23 UTC on January 31, 2021. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:19:19 UTC | 3.2md | 76 km NNE of Luquillo, Puerto Rico 19.006°, -65.434° | 37.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:19 UTC on January 31, 2021, a magnitude 3.2 tremor occurred 76 km NNE of Luquillo, Puerto Rico. Coming 1 hours after a magnitude 3.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:04:24 UTC | 4.1mb | 52 km NE of Yairipok, India 24.951°, 94.475° | 47.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 52 km NE of Yairipok, India on January 31, 2021 at 20:04 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 20:02:18 UTC | 2.6ml | 34 km NW of Stanley, Idaho 44.463°, -115.199° | 10.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 34 km NW of Stanley, Idaho came in on January 31, 2021 at 20:02 UTC. It arrived roughly 1 hours after a larger magnitude 2.7 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. | ||||||||
2021-01-31 2021-01-31 19:58:35 UTC | 4.7mb | 198 km SE of Sarangani, Philippines 3.966°, 126.533° | 36.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded 198 km SE of Sarangani, Philippines on January 31, 2021 at 19:58 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 19:52:34 UTC | 2.7ml | 34 km NW of Stanley, Idaho 44.457°, -115.210° | 10.9 km | - | - | - | ✓ Reviewed | USGS → |
On January 31, 2021, worldwide seismic activity registered a magnitude 2.7 earthquake 34 km NW of Stanley, Idaho at 19:52 UTC. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 19:41:48 UTC | 2.3md | 3 km SW of P?hala, Hawaii 19.179°, -155.497° | 36.7 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.3 earthquake 3 km SW of P?hala, Hawaii with origin time 19:41 UTC on January 31, 2021. It arrived roughly 16 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 19:38:34 UTC | 2.4md | 2 km SW of P?hala, Hawaii 19.191°, -155.498° | 35.9 km | - | - | - | Auto | USGS → |
January 31, 2021 brought a magnitude 2.4 earthquake 2 km SW of P?hala, Hawaii, logged at 19:38 UTC. It arrived roughly 16 hours after a larger magnitude 2.4 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. | ||||||||
2021-01-31 2021-01-31 19:14:52 UTC | 2.3ml | 47 km WSW of False Pass, Alaska 54.651°, -164.060° | 162.5 km | - | - | - | ✓ Reviewed | USGS → |
On January 31, 2021, worldwide seismic activity registered a magnitude 2.3 earthquake 47 km WSW of False Pass, Alaska at 19:14 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 19:05:14 UTC | 5.5mww | 82 km SSE of Lethem, Guyana 2.667°, -59.588° | 5.2 km | 38 | VII | yellow | ✓ Reviewed | USGS → |
On January 31, 2021 at 19:05 UTC, a magnitude 5.5 earthquake struck 82 km SSE of Lethem, Guyana. The USGS PAGER system assigned a yellow alert level for this event, signalling local impact possible. It is the largest earthquake currently listed for worldwide seismic activity on January 31, 2021. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 19:03:39 UTC | 2.2md | 7 km SSE of Guánica, Puerto Rico 17.906°, -66.892° | 14.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 7 km SSE of Guánica, Puerto Rico on January 31, 2021 at 19:03 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. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 18:59:49 UTC | 2.0ml | 35 km NW of Stanley, Idaho 44.477°, -115.196° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 35 km NW of Stanley, Idaho on January 31, 2021 at 18:59 UTC. Coming 1 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-31 2021-01-31 18:57:44 UTC | 2.3ml | 35 km NW of Stanley, Idaho 44.468°, -115.219° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:57 UTC on January 31, 2021, a magnitude 2.3 tremor occurred 35 km NW of Stanley, Idaho. 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 M2.3 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 January 31, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.