Earthquakes on May 1, 2021
204
EARTHQUAKES on May 1, 2021
24-hour UTC period · USGS data
43 km deep · 274 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
37
M3.0–3.9
5
M2.0–2.9
40
M1.0–1.9
118
Activity Summary
204
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Northern Mariana Islands
2
South Sandwich Islands
2
Significant Earthquakes (M4.5+)
6.9
30 km SSE of Onagawa Ch?, Japan
01:27 UTC · 43.0 km deep
Felt by 274
5.3
54 km E of Lakatoro, Vanuatu
11:50 UTC · 180.5 km deep
Felt by 1
5.1
17 km NNE of Santa Isabel, Panama
06:13 UTC · 43.8 km deep
Felt by 198
5.0
Mid-Indian Ridge
00:05 UTC · 10.0 km deep
4.9
Mid-Indian Ridge
00:22 UTC · 10.0 km deep
4.9
Mid-Indian Ridge
00:21 UTC · 10.0 km deep
4.8
48 km SSW of Sarangani, Philippines
14:26 UTC · 177.1 km deep
Felt by 1
4.7
162 km SE of Lorengau, Papua New Guinea
15:39 UTC · 10.0 km deep
Earthquake Map — May 1, 2021
All Earthquakes — May 1, 2021
Showing 30 of 86 (filtered from 204)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-05-01 2021-05-01 23:57:43 UTC | 4.2mb | 82 km W of Tobelo, Indonesia 1.654°, 127.276° | 58.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 82 km W of Tobelo, Indonesia on May 1, 2021 at 23:57 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 23:57:22 UTC | 2.6md | 3 km SE of Maria Antonia, Puerto Rico 17.959°, -66.867° | 8.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 3 km SE of Maria Antonia, Puerto Rico at 23:57 UTC on May 1, 2021. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 19 hours earlier. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 23:47:26 UTC | 2.2ml | 18 km SE of Ackerly, Texas 32.401°, -101.579° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
May 1, 2021 brought a magnitude 2.2 earthquake 18 km SE of Ackerly, Texas, logged at 23:47 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 23:21:39 UTC | 2.3ml | 49 km NW of Elfin Cove, Alaska 58.514°, -136.932° | 0.0 km | - | - | - | Auto | USGS → |
This magnitude 2.3 event was detected 49 km NW of Elfin Cove, Alaska on May 1, 2021, with origin time 23:21 UTC. It arrived roughly 22 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. 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. | ||||||||
2021-05-01 2021-05-01 22:10:06 UTC | 4.3mb | 35 km NE of Al Hoceïma, Morocco 35.445°, -3.629° | 10.0 km | 5 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 35 km NE of Al Hoceïma, Morocco came in on May 1, 2021 at 22:10 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 21:31:37 UTC | 3.8mb | 72 km N of Saipan, Northern Mariana Islands 15.862°, 145.699° | 154.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.8 earthquake was recorded 72 km N of Saipan, Northern Mariana Islands on May 1, 2021 at 21:31 UTC. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 21:20:17 UTC | 4.4mb | Kermadec Islands, New Zealand -29.830°, -177.585° | 34.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake near Kermadec Islands, New Zealand with origin time 21:20 UTC on May 1, 2021. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 20:18:43 UTC | 3.4mb | 188 km SE of Nikolski, Alaska 51.791°, -166.823° | 11.6 km | - | - | - | ✓ Reviewed | USGS → |
On May 1, 2021, worldwide seismic activity registered a magnitude 3.4 earthquake 188 km SE of Nikolski, Alaska at 20:18 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 20:07:04 UTC | 3.4mb | 191 km SE of Nikolski, Alaska 51.751°, -166.832° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:07 UTC on May 1, 2021, a magnitude 3.4 tremor occurred 191 km SE of Nikolski, Alaska. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 19:53:57 UTC | 2.0ml | 44 km SSE of Denali National Park, Alaska 63.190°, -151.318° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
On May 1, 2021, worldwide seismic activity registered a magnitude 2.0 earthquake 44 km SSE of Denali National Park, Alaska at 19:53 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 19:44:20 UTC | 4.5mb | south of the Kermadec Islands -32.561°, -178.212° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake south of the Kermadec Islands at 19:44 UTC on May 1, 2021. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 19:18:03 UTC | 4.0mb | 37 km N of Malfa, Italy 38.918°, 14.820° | 291.9 km | - | - | - | ✓ Reviewed | USGS → |
On May 1, 2021 at 19:18 UTC, a magnitude 4.0 earthquake struck 37 km N of Malfa, Italy. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 19:14:41 UTC | 2.4ml | 87 km WNW of Elfin Cove, Alaska 58.407°, -137.784° | 0.0 km | - | - | - | Auto | USGS → |
A magnitude 2.4 earthquake was recorded 87 km WNW of Elfin Cove, Alaska on May 1, 2021 at 19:14 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.7 earthquake that occurred about 4 hours earlier. 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. | ||||||||
2021-05-01 2021-05-01 18:40:21 UTC | 4.3mb | Kermadec Islands region -28.424°, -177.857° | 22.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place in the Kermadec Islands region on May 1, 2021 at 18:40 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 18:26:24 UTC | 2.7md | 2km NNW of Chico, CA 39.754°, -121.840° | 14.4 km | 4 | - | - | ✓ Reviewed | USGS → |
May 1, 2021 brought a magnitude 2.7 earthquake 2km NNW of Chico, CA, logged at 18:26 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 18:14:10 UTC | 4.5mb | 295 km ESE of Port Mathurin, Mauritius -20.290°, 66.168° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 295 km ESE of Port Mathurin, Mauritius on May 1, 2021, with origin time 18:14 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 18:03:05 UTC | 2.4ml | 87 km WNW of Elfin Cove, Alaska 58.396°, -137.792° | 0.1 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.4 earthquake 87 km WNW of Elfin Cove, Alaska with origin time 18:03 UTC on May 1, 2021. Coming 3 hours after a magnitude 4.7 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 M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 17:57:08 UTC | 4.1mb | south of the Fiji Islands -23.785°, -179.760° | 534.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected south of the Fiji Islands on May 1, 2021, with origin time 17:57 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. | ||||||||
2021-05-01 2021-05-01 16:43:13 UTC | 4.6mb | South Sandwich Islands region -56.763°, -24.187° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On May 1, 2021 at 16:43 UTC, a magnitude 4.6 earthquake struck in the South Sandwich Islands region. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 16:42:14 UTC | 2.9ml | Southern Alaska 61.549°, -146.240° | 24.1 km | - | - | - | Auto | USGS → |
A magnitude 2.9 seismic event took place near Southern Alaska on May 1, 2021 at 16:42 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 16:40:27 UTC | 2.7ml | Southeastern Alaska 58.100°, -138.099° | 0.8 km | - | - | - | Auto | USGS → |
On May 1, 2021 at 16:40 UTC, a magnitude 2.7 earthquake struck near Southeastern Alaska. Coming 3 hours after a magnitude 3.4 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 M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 16:19:09 UTC | 2.0md | 7 km ENE of P?hala, Hawaii 19.221°, -155.413° | 34.3 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.0 earthquake 7 km ENE of P?hala, Hawaii with origin time 16:19 UTC on May 1, 2021. This event falls inside the aftershock decay of a nearby magnitude 2.6 earthquake that occurred about 11 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 16:07:12 UTC | 2.1ml | 13km SE of Bodfish, CA 35.502°, -118.388° | 8.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 13km SE of Bodfish, CA at 16:07 UTC on May 1, 2021. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 15:59:24 UTC | 4.6mb | east of the Kuril Islands 45.615°, 152.169° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded east of the Kuril Islands on May 1, 2021 at 15:59 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 15:44:37 UTC | 3.7mb | 126 km SSE of Atka, Alaska 51.164°, -173.433° | 38.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.7 earthquake 126 km SSE of Atka, Alaska with origin time 15:44 UTC on May 1, 2021. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 15:39:15 UTC | 4.7mb | 162 km SE of Lorengau, Papua New Guinea -3.003°, 148.369° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.7 earthquake 162 km SE of Lorengau, Papua New Guinea came in on May 1, 2021 at 15:39 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 15:23:20 UTC | 4.7ml | 93 km W of Elfin Cove, Alaska 58.261°, -137.926° | 9.1 km | 44 | III | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place 93 km W of Elfin Cove, Alaska on May 1, 2021 at 15:23 UTC. A tsunami evaluation was automatically initiated given the magnitude and location. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 15:02:29 UTC | 2.1md | 7 km E of P?hala, Hawaii 19.211°, -155.412° | 34.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 7 km E of P?hala, Hawaii on May 1, 2021 at 15:02 UTC. It arrived roughly 10 hours after a larger magnitude 2.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-05-01 2021-05-01 14:36:36 UTC | 2.4ml | 7 km ESE of P?hala, Hawaii 19.177°, -155.412° | 7.7 km | - | - | - | Auto | USGS → |
May 1, 2021 brought a magnitude 2.4 earthquake 7 km ESE of P?hala, Hawaii, logged at 14:36 UTC. Coming 9 hours after a magnitude 2.6 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. | ||||||||
2021-05-01 2021-05-01 14:26:45 UTC | 4.8mb | 48 km SSW of Sarangani, Philippines 4.971°, 125.367° | 177.1 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 48 km SSW of Sarangani, Philippines on May 1, 2021, with origin time 14:26 UTC. See the M4.8 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 May 1, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.