Earthquakes on January 20, 2021
385
EARTHQUAKES on January 20, 2021
24-hour UTC period · USGS data
LARGEST: M5.6 — Sea of Okhotsk
587 km deep · 2 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
32
M3.0–3.9
29
M2.0–2.9
97
M1.0–1.9
223
Activity Summary
385
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.6
Sea of Okhotsk
16:00 UTC · 587.4 km deep
Felt by 2
5.5
49 km WNW of Minas de Marcona, Peru
22:59 UTC · 5.3 km deep
Felt by 26
5.3
46 km SW of Changuillo, Peru
23:09 UTC · 10.0 km deep
Felt by 1
5.1
47 km SW of Changuillo, Peru
22:27 UTC · 13.2 km deep
Felt by 1
4.9
16 km NNW of Loreto, Philippines
06:53 UTC · 60.5 km deep
4.9
221 km ESE of Tadine, New Caledonia
01:38 UTC · 10.0 km deep
4.8
10 km NNE of Néon Karlovásion, Greece
23:37 UTC · 2.8 km deep
Felt by 20
4.8
53 km SW of Changuillo, Peru
22:49 UTC · 10.0 km deep
Felt by 1
Earthquake Map — January 20, 2021
All Earthquakes — January 20, 2021
Showing 30 of 162 (filtered from 385)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-01-20 2021-01-20 23:59:58 UTC | 3.5md | Virgin Islands 18.935°, -64.861° | 43.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.5 earthquake near Virgin Islands came in on January 20, 2021 at 23:59 UTC. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 23:42:21 UTC | 2.2md | 4 km ESE of La Parguera, Puerto Rico 17.964°, -67.004° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
On January 20, 2021 at 23:42 UTC, a magnitude 2.2 earthquake struck 4 km ESE of La Parguera, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 22 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 23:40:25 UTC | 2.3ml | 46 km E of Yakutat, Alaska 59.563°, -138.913° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
On January 20, 2021 at 23:40 UTC, a magnitude 2.3 earthquake struck 46 km E of Yakutat, Alaska. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 23:37:55 UTC | 4.8mb | 10 km NNE of Néon Karlovásion, Greece 37.870°, 26.765° | 2.8 km | 20 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 10 km NNE of Néon Karlovásion, Greece on January 20, 2021, with origin time 23:37 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 23:36:16 UTC | 2.1md | 6km S of Gilroy, CA 36.958°, -121.580° | 4.1 km | - | - | - | ✓ Reviewed | USGS → |
January 20, 2021 brought a magnitude 2.1 earthquake 6km S of Gilroy, CA, logged at 23:36 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. | ||||||||
2021-01-20 2021-01-20 23:30:30 UTC | 2.0md | 5 km SSW of Indios, Puerto Rico 17.952°, -66.842° | 14.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 5 km SSW of Indios, Puerto Rico on January 20, 2021, with origin time 23:30 UTC. It arrived roughly 22 hours after a larger magnitude 3.1 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. | ||||||||
2021-01-20 2021-01-20 23:28:22 UTC | 4.1mb | 7 km ENE of Néon Karlovásion, Greece 37.821°, 26.779° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake 7 km ENE of Néon Karlovásion, Greece with origin time 23:28 UTC on January 20, 2021. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 23:27:38 UTC | 2.3md | 9 km SSE of Guánica, Puerto Rico 17.898°, -66.871° | 18.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:27 UTC on January 20, 2021, a magnitude 2.3 tremor occurred 9 km SSE of Guánica, Puerto Rico. It arrived roughly 22 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. | ||||||||
2021-01-20 2021-01-20 23:26:38 UTC | 2.0ml | 68 km NNE of Tanana, Alaska 65.774°, -151.751° | 7.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 68 km NNE of Tanana, Alaska on January 20, 2021 at 23:26 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 23:22:48 UTC | 2.1md | 2 km SSE of Maria Antonia, Puerto Rico 17.957°, -66.880° | 16.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 2 km SSE of Maria Antonia, Puerto Rico on January 20, 2021 at 23:22 UTC. It arrived roughly 22 hours after a larger magnitude 3.1 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. | ||||||||
2021-01-20 2021-01-20 23:09:16 UTC | 5.3mww | 46 km SW of Changuillo, Peru -14.935°, -75.548° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.3 earthquake 46 km SW of Changuillo, Peru with origin time 23:09 UTC on January 20, 2021. Coming 1 hours after a magnitude 5.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 23:07:11 UTC | 2.4md | 15 km SSE of P?hala, Hawaii 19.077°, -155.421° | 39.1 km | - | - | - | Auto | USGS → |
This magnitude 2.4 event was detected 15 km SSE of P?hala, Hawaii on January 20, 2021, with origin time 23:07 UTC. Coming 15 hours after a magnitude 2.7 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. | ||||||||
2021-01-20 2021-01-20 23:03:33 UTC | 4.3mb | 67 km WNW of Minas de Marcona, Peru -15.087°, -75.724° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On January 20, 2021, worldwide seismic activity registered a magnitude 4.3 earthquake 67 km WNW of Minas de Marcona, Peru at 23:03 UTC. Coming 1 hours after a magnitude 4.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 22:59:11 UTC | 5.5mww | 49 km WNW of Minas de Marcona, Peru -15.013°, -75.523° | 5.3 km | 26 | VII | green | ✓ Reviewed | USGS → |
A magnitude 5.5 earthquake was recorded 49 km WNW of Minas de Marcona, Peru on January 20, 2021 at 22:59 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 22:49:27 UTC | 4.8mb | 53 km SW of Changuillo, Peru -14.998°, -75.585° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake 53 km SW of Changuillo, Peru came in on January 20, 2021 at 22:49 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.1 earthquake that occurred about 1 hours earlier. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 22:31:43 UTC | 2.0md | 6km WNW of San Francisco Zoo, CA 37.754°, -122.562° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 6km WNW of San Francisco Zoo, CA on January 20, 2021 at 22:31 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 22:27:43 UTC | 5.1mww | 47 km SW of Changuillo, Peru -14.944°, -75.558° | 13.2 km | 1 | - | - | ✓ Reviewed | USGS → |
On January 20, 2021, worldwide seismic activity registered a magnitude 5.1 earthquake 47 km SW of Changuillo, Peru at 22:27 UTC. The event was offshore. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 21:41:40 UTC | 2.2ml | 152 km WSW of Adak, Alaska 51.167°, -178.517° | 22.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 152 km WSW of Adak, Alaska with origin time 21:41 UTC on January 20, 2021. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 21:32:58 UTC | 2.4ml | 99 km SSE of Sand Point, Alaska 54.572°, -159.681° | 21.3 km | - | - | - | ✓ Reviewed | USGS → |
On January 20, 2021 at 21:32 UTC, a magnitude 2.4 earthquake struck 99 km SSE of Sand Point, Alaska. It arrived roughly 13 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 21:30:18 UTC | 2.2ml | 86 km SE of Sand Point, Alaska 54.712°, -159.693° | 24.3 km | - | - | - | ✓ Reviewed | USGS → |
On January 20, 2021, worldwide seismic activity registered a magnitude 2.2 earthquake 86 km SE of Sand Point, Alaska at 21:30 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 21:22:14 UTC | 2.8ml | 107 km SSE of Sand Point, Alaska 54.484°, -159.696° | 18.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 seismic event took place 107 km SSE of Sand Point, Alaska on January 20, 2021 at 21:22 UTC. Coming 13 hours after a magnitude 3.2 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. | ||||||||
2021-01-20 2021-01-20 21:02:53 UTC | 4.4mb | 42 km E of Yonakuni, Japan 24.411°, 123.419° | 18.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected 42 km E of Yonakuni, Japan on January 20, 2021, with origin time 21:02 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 21:02:17 UTC | 3.5ml | 14 km E of Wright, Wyoming 43.760°, -105.314° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On January 20, 2021, worldwide seismic activity registered a magnitude 3.5 earthquake 14 km E of Wright, Wyoming at 21:02 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 20:55:57 UTC | 4.4mb | 70 km SW of Kokopo, Papua New Guinea -4.775°, 151.801° | 128.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 70 km SW of Kokopo, Papua New Guinea came in on January 20, 2021 at 20:55 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 20:43:46 UTC | 2.2md | 1 km SSE of Indios, Puerto Rico 17.980°, -66.811° | 19.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 1 km SSE of Indios, Puerto Rico on January 20, 2021, with origin time 20:43 UTC. Coming 13 hours after a magnitude 2.6 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. | ||||||||
2021-01-20 2021-01-20 20:43:23 UTC | 2.2md | 12 km E of Naalehu, Hawaii 19.050°, -155.462° | 37.5 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.2 earthquake 12 km E of Naalehu, Hawaii at 20:43 UTC on January 20, 2021. Coming 13 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 20:42:20 UTC | 4.3mb | 29 km NNW of Finschhafen, Papua New Guinea -6.323°, 147.723° | 61.2 km | - | - | - | ✓ Reviewed | USGS → |
At 20:42 UTC on January 20, 2021, a magnitude 4.3 tremor occurred 29 km NNW of Finschhafen, Papua New Guinea. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 20:39:25 UTC | 2.4ml | 54 km W of Anchor Point, Alaska 59.756°, -152.800° | 83.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 earthquake was recorded 54 km W of Anchor Point, Alaska on January 20, 2021 at 20:39 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 20:35:39 UTC | 4.0mb | 12 km ESE of Lárdos, Greece 36.038°, 28.134° | 82.4 km | - | - | - | ✓ Reviewed | USGS → |
On January 20, 2021, worldwide seismic activity registered a magnitude 4.0 earthquake 12 km ESE of Lárdos, Greece at 20:35 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-01-20 2021-01-20 19:49:57 UTC | 2.9ml | 98 km SSE of Sand Point, Alaska 54.532°, -159.871° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.9 event was detected 98 km SSE of Sand Point, Alaska on January 20, 2021, with origin time 19:49 UTC. It arrived roughly 11 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.9 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 20, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.