Earthquakes on February 1, 2021
382
EARTHQUAKES on February 1, 2021
24-hour UTC period · USGS data
LARGEST: M5.2 — Pacific-Antarctic Ridge
10 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
40
M3.0–3.9
9
M2.0–2.9
99
M1.0–1.9
230
Activity Summary
382
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events
Geographic Breakdown
Top Countries (International)
Significant Earthquakes (M4.5+)
5.2
Pacific-Antarctic Ridge
11:51 UTC · 10.0 km deep
5.2
11 km SW of Polichnítos, Greece
08:35 UTC · 10.0 km deep
Felt by 20
5.1
Pacific-Antarctic Ridge
11:48 UTC · 10.0 km deep
5.1
South Sandwich Islands region
05:19 UTC · 71.8 km deep
4.9
17 km SW of Polichnítos, Greece
13:10 UTC · 9.4 km deep
Felt by 4
4.8
14 km SW of Polichnítos, Greece
20:46 UTC · 10.0 km deep
Felt by 1
4.8
109 km N of Tual, Indonesia
18:32 UTC · 10.0 km deep
4.8
Pacific-Antarctic Ridge
15:29 UTC · 10.0 km deep
Earthquake Map — February 1, 2021
All Earthquakes — February 1, 2021
Showing 30 of 152 (filtered from 382)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-02-01 2021-02-01 23:51:53 UTC | 4.5mb | 179 km S of Beira, Mozambique -21.467°, 34.913° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On February 1, 2021 at 23:51 UTC, a magnitude 4.5 earthquake struck 179 km S of Beira, Mozambique. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 23:31:51 UTC | 2.0md | 27 km E of Honaunau-Napoopoo, Hawaii 19.474°, -155.599° | -1.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 27 km E of Honaunau-Napoopoo, Hawaii came in on February 1, 2021 at 23:31 UTC. Coming 9 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 23:03:48 UTC | 2.4ml | 10 km WSW of Waynoka, Oklahoma 36.535°, -98.981° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 10 km WSW of Waynoka, Oklahoma on February 1, 2021, with origin time 23:03 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 22:55:52 UTC | 2.1md | 6 km SSE of P?hala, Hawaii 19.151°, -155.457° | 33.5 km | - | - | - | Auto | USGS → |
On February 1, 2021 at 22:55 UTC, a magnitude 2.1 earthquake struck 6 km SSE of P?hala, Hawaii. It arrived roughly 21 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. | ||||||||
2021-02-01 2021-02-01 22:31:08 UTC | 4.7mb | 7 km SW of Dapa, Philippines 9.706°, 126.010° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.7 earthquake 7 km SW of Dapa, Philippines with origin time 22:31 UTC on February 1, 2021. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 21:32:47 UTC | 4.1mb | 214 km NE of Lospalos, Timor Leste -7.388°, 128.578° | 165.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake 214 km NE of Lospalos, Timor Leste with origin time 21:32 UTC on February 1, 2021. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 21:17:58 UTC | 3.2md | 5 km SE of Indios, Puerto Rico 17.959°, -66.785° | 12.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On February 1, 2021 at 21:17 UTC, a magnitude 3.2 earthquake struck 5 km SE of Indios, Puerto Rico. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 20:55:44 UTC | 2.4ml | 88 km ESE of Sand Point, Alaska 55.017°, -159.233° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 88 km ESE of Sand Point, Alaska came in on February 1, 2021 at 20:55 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 20:53:19 UTC | 4.6mb | 26 km SSE of Puerto San José, Guatemala 13.697°, -90.771° | 83.7 km | - | - | - | ✓ Reviewed | USGS → |
At 20:53 UTC on February 1, 2021, a magnitude 4.6 tremor occurred 26 km SSE of Puerto San José, Guatemala. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 20:46:46 UTC | 2.0ml | 48 km E of Adak, Alaska 51.832°, -175.932° | 126.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 48 km E of Adak, Alaska on February 1, 2021 at 20:46 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 20:46:15 UTC | 4.8mb | 14 km SW of Polichnítos, Greece 38.977°, 26.079° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.8 earthquake 14 km SW of Polichnítos, Greece at 20:46 UTC on February 1, 2021. Coming 12 hours after a magnitude 5.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 20:33:33 UTC | 2.1ml | 31 km S of Mina, Nevada 38.108°, -118.091° | 1.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 31 km S of Mina, Nevada with origin time 20:33 UTC on February 1, 2021. 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. | ||||||||
2021-02-01 2021-02-01 20:17:06 UTC | 2.7ml | 83 km SE of King Cove, Alaska 54.601°, -161.298° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On February 1, 2021, worldwide seismic activity registered a magnitude 2.7 earthquake 83 km SE of King Cove, Alaska at 20:17 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 20:16:02 UTC | 2.0md | 4 km S of P?hala, Hawaii 19.166°, -155.480° | 34.3 km | - | - | - | Auto | USGS → |
This magnitude 2.0 event was detected 4 km S of P?hala, Hawaii on February 1, 2021, with origin time 20:16 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 18 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 20:13:14 UTC | 2.8ml | 13 km ESE of Wright, Wyoming 43.693°, -105.342° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 13 km ESE of Wright, Wyoming came in on February 1, 2021 at 20:13 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 19:49:10 UTC | 2.8ml | 4 km W of Lucien, Oklahoma 36.280°, -97.501° | 7.5 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 4 km W of Lucien, Oklahoma on February 1, 2021, with origin time 19:49 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 19:34:32 UTC | 2.0ml | 73 km S of Unalaska, Alaska 53.219°, -166.443° | 25.1 km | - | - | - | ✓ Reviewed | USGS → |
February 1, 2021 brought a magnitude 2.0 earthquake 73 km S of Unalaska, Alaska, logged at 19:34 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 19:27:20 UTC | 2.8ml | 33 km NE of Ranchester, Wyoming 45.106°, -106.840° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 seismic event took place 33 km NE of Ranchester, Wyoming on February 1, 2021 at 19:27 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 19:18:00 UTC | 2.0ml | 65 km SSW of Sand Point, Alaska 54.786°, -160.842° | 13.1 km | - | - | - | ✓ Reviewed | USGS → |
On February 1, 2021 at 19:18 UTC, a magnitude 2.0 earthquake struck 65 km SSW of Sand Point, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 19:16:49 UTC | 2.3ml | 79 km ESE of Sand Point, Alaska 55.030°, -159.364° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
On February 1, 2021, worldwide seismic activity registered a magnitude 2.3 earthquake 79 km ESE of Sand Point, Alaska at 19:16 UTC. Coming 1 hours after a magnitude 2.4 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. | ||||||||
2021-02-01 2021-02-01 19:12:13 UTC | 2.0ml | 19 km NNE of P?hala, Hawaii 19.359°, -155.397° | 9.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 19 km NNE of P?hala, Hawaii with origin time 19:12 UTC on February 1, 2021. It arrived roughly 4 hours after a larger magnitude 2.5 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. | ||||||||
2021-02-01 2021-02-01 19:05:06 UTC | 2.1md | 5 km E of P?hala, Hawaii 19.202°, -155.425° | 35.3 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.1 earthquake 5 km E of P?hala, Hawaii came in on February 1, 2021 at 19:05 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 17 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 18:53:20 UTC | 2.9md | 51 km N of Brenas, Puerto Rico 18.934°, -66.302° | 34.0 km | - | - | - | ✓ Reviewed | USGS → |
On February 1, 2021, worldwide seismic activity registered a magnitude 2.9 earthquake 51 km N of Brenas, Puerto Rico at 18:53 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 18:53:09 UTC | 2.3ml | 24 km S of False Pass, Alaska 54.638°, -163.398° | 83.3 km | - | - | - | ✓ Reviewed | USGS → |
At 18:53 UTC on February 1, 2021, a magnitude 2.3 tremor occurred 24 km S of False Pass, Alaska. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 18:51:00 UTC | 4.2mb | South Sandwich Islands region -57.927°, -25.479° | 42.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake in the South Sandwich Islands region came in on February 1, 2021 at 18:51 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 18:37:42 UTC | 2.4ml | 75 km ESE of Sand Point, Alaska 54.970°, -159.495° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 75 km ESE of Sand Point, Alaska on February 1, 2021 at 18:37 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 18:32:57 UTC | 4.8mb | 109 km N of Tual, Indonesia -4.654°, 132.593° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 109 km N of Tual, Indonesia on February 1, 2021, with origin time 18:32 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 18:26:19 UTC | 4.5mb | 130 km NNE of Uribia, Colombia 12.797°, -71.796° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 130 km NNE of Uribia, Colombia on February 1, 2021 at 18:26 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-02-01 2021-02-01 18:24:36 UTC | 2.2ml | 86 km SSE of Sand Point, Alaska 54.672°, -159.784° | 23.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 86 km SSE of Sand Point, Alaska on February 1, 2021 at 18:24 UTC. Coming 3 hours after a magnitude 3.7 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. | ||||||||
2021-02-01 2021-02-01 18:15:40 UTC | 2.8ml | 85 km ESE of Adak, Alaska 51.477°, -175.569° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
February 1, 2021 brought a magnitude 2.8 earthquake 85 km ESE of Adak, Alaska, logged at 18:15 UTC. See the M2.8 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 February 1, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.