Earthquakes on April 6, 2021
317
EARTHQUAKES on April 6, 2021
24-hour UTC period · USGS data
LARGEST: M5.7 — Kermadec Islands region
14 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
48
M3.0–3.9
6
M2.0–2.9
48
M1.0–1.9
209
Activity Summary
317
Total earthquakes
~250
Daily average
Elevated
Activity level
6
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.7
Kermadec Islands region
08:16 UTC · 14.0 km deep
5.3
Kermadec Islands region
10:07 UTC · 10.0 km deep
5.2
6 km NE of Baynjiwayn, Iraq
15:12 UTC · 10.0 km deep
Felt by 8
5.2
Kermadec Islands region
07:37 UTC · 10.0 km deep
5.1
65 km SE of Pondaguitan, Philippines
20:08 UTC · 100.3 km deep
Felt by 1
5.0
92 km ENE of Nagqu, China
21:48 UTC · 10.0 km deep
4.8
10 km SSW of Sechura, Peru
19:36 UTC · 10.0 km deep
4.8
Kermadec Islands, New Zealand
15:44 UTC · 12.2 km deep
Earthquake Map — April 6, 2021
All Earthquakes — April 6, 2021
Showing 30 of 108 (filtered from 317)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-04-06 2021-04-06 22:54:28 UTC | 2.2ml | 16 km W of Gerlach, Nevada 40.626°, -119.549° | 14.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 16 km W of Gerlach, Nevada on April 6, 2021, with origin time 22:54 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 22:40:37 UTC | 2.7ml | 204 km S of Atka, Alaska 50.365°, -174.420° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.7 earthquake 204 km S of Atka, Alaska at 22:40 UTC on April 6, 2021. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 22:00:59 UTC | 4.3mb | 108 km ENE of Nagqu, China 31.949°, 93.059° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:00 UTC on April 6, 2021, a magnitude 4.3 tremor occurred 108 km ENE of Nagqu, China. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 1 hours earlier. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 21:55:47 UTC | 4.7mb | 100 km ENE of Nagqu, China 31.963°, 92.956° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
April 6, 2021 brought a magnitude 4.7 earthquake 100 km ENE of Nagqu, China, logged at 21:55 UTC. It arrived roughly 1 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 21:48:35 UTC | 5.0mww | 92 km ENE of Nagqu, China 31.869°, 92.914° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.0 earthquake 92 km ENE of Nagqu, China at 21:48 UTC on April 6, 2021. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 21:33:23 UTC | 4.2mb | 38 km SSW of Corinto, Nicaragua 12.159°, -87.291° | 70.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place 38 km SSW of Corinto, Nicaragua on April 6, 2021 at 21:33 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 21:25:14 UTC | 2.5md | 7 km SSW of Guánica, Puerto Rico 17.913°, -66.935° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 6, 2021, worldwide seismic activity registered a magnitude 2.5 earthquake 7 km SSW of Guánica, Puerto Rico at 21:25 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 21 hours earlier. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 20:49:08 UTC | 2.2ml | 64 km NW of Ninilchik, Alaska 60.451°, -152.511° | 106.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 64 km NW of Ninilchik, Alaska came in on April 6, 2021 at 20:49 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 20:30:14 UTC | 3.1ml | 95 km SSE of Sand Point, Alaska 54.600°, -159.728° | 24.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 seismic event took place 95 km SSE of Sand Point, Alaska on April 6, 2021 at 20:30 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 20:17:28 UTC | 4.1mb | Banda Sea -6.317°, 130.040° | 114.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.1 earthquake near Banda Sea at 20:17 UTC on April 6, 2021. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 20:10:34 UTC | 4.2mb | 96 km ESE of Ishinomaki, Japan 38.057°, 142.307° | 25.1 km | - | - | - | ✓ Reviewed | USGS → |
April 6, 2021 brought a magnitude 4.2 earthquake 96 km ESE of Ishinomaki, Japan, logged at 20:10 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 20:08:48 UTC | 5.1mww | 65 km SE of Pondaguitan, Philippines 5.906°, 126.550° | 100.3 km | 1 | - | - | ✓ Reviewed | USGS → |
At 20:08 UTC on April 6, 2021, a magnitude 5.1 tremor occurred 65 km SE of Pondaguitan, Philippines. The event was offshore. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 20:05:31 UTC | 2.2ml | 1km NNW of Lennox, CA 33.949°, -118.359° | 20.6 km | 3 | - | - | ✓ Reviewed | USGS → |
On April 6, 2021, worldwide seismic activity registered a magnitude 2.2 earthquake 1km NNW of Lennox, CA at 20:05 UTC. It arrived roughly 19 hours after a larger magnitude 2.3 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. | ||||||||
2021-04-06 2021-04-06 19:36:16 UTC | 4.8mb | 10 km SSW of Sechura, Peru -5.647°, -80.860° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 10 km SSW of Sechura, Peru on April 6, 2021, with origin time 19:36 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 19:20:39 UTC | 3.5ml | 47 km SW of Howell, Utah 41.511°, -112.868° | 11.2 km | 17 | III | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.5 earthquake 47 km SW of Howell, Utah came in on April 6, 2021 at 19:20 UTC. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 18:49:18 UTC | 2.7ml | 212 km WSW of Adak, Alaska 51.531°, -179.660° | 113.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 212 km WSW of Adak, Alaska on April 6, 2021, with origin time 18:49 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 18:01:13 UTC | 4.7mb | off the coast of Central America 3.626°, -83.081° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 6, 2021 at 18:01 UTC, a magnitude 4.7 earthquake struck near off the coast of Central America. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 17:53:59 UTC | 2.2ml | 108 km SSE of Sand Point, Alaska 54.472°, -159.701° | 22.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 108 km SSE of Sand Point, Alaska on April 6, 2021 at 17:53 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.6 earthquake that occurred about 2 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 17:53:23 UTC | 2.2ml | 107 km SSE of Sand Point, Alaska 54.484°, -159.701° | 21.3 km | - | - | - | ✓ Reviewed | USGS → |
April 6, 2021 brought a magnitude 2.2 earthquake 107 km SSE of Sand Point, Alaska, logged at 17:53 UTC. Coming 2 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. | ||||||||
2021-04-06 2021-04-06 17:40:21 UTC | 4.6mb | 247 km WSW of Abepura, Indonesia -3.491°, 138.590° | 73.3 km | - | - | - | ✓ Reviewed | USGS → |
On April 6, 2021, worldwide seismic activity registered a magnitude 4.6 earthquake 247 km WSW of Abepura, Indonesia at 17:40 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 17:36:23 UTC | 4.5mb | 27 km ESE of Palma Sola, Argentina -24.048°, -64.048° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 6, 2021 at 17:36 UTC, a magnitude 4.5 earthquake struck 27 km ESE of Palma Sola, Argentina. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 17:23:15 UTC | 2.2ml | 113 km SSE of Sand Point, Alaska 54.442°, -159.665° | 28.4 km | - | - | - | ✓ Reviewed | USGS → |
On April 6, 2021 at 17:23 UTC, a magnitude 2.2 earthquake struck 113 km SSE of Sand Point, Alaska. It arrived roughly 1 hours after a larger magnitude 2.6 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. | ||||||||
2021-04-06 2021-04-06 17:22:17 UTC | 4.4mb | 7 km SSW of Torbat-e ?eydar?yeh, Iran 35.211°, 59.180° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 17:22 UTC on April 6, 2021, a magnitude 4.4 tremor occurred 7 km SSW of Torbat-e ?eydar?yeh, Iran. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 17:03:20 UTC | 2.6ml | 31 km NNW of Cold Bay, Alaska 55.460°, -162.861° | 190.2 km | - | - | - | ✓ Reviewed | USGS → |
On April 6, 2021 at 17:03 UTC, a magnitude 2.6 earthquake struck 31 km NNW of Cold Bay, Alaska. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 16:44:15 UTC | 4.6mb | 29 km S of Nemuro, Japan 43.058°, 145.607° | 53.1 km | - | - | - | ✓ Reviewed | USGS → |
At 16:44 UTC on April 6, 2021, a magnitude 4.6 tremor occurred 29 km S of Nemuro, Japan. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 16:16:54 UTC | 2.8ml | 66 km SSE of Atka, Alaska 51.641°, -173.842° | 26.5 km | - | - | - | ✓ Reviewed | USGS → |
On April 6, 2021, worldwide seismic activity registered a magnitude 2.8 earthquake 66 km SSE of Atka, Alaska at 16:16 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 16:08:03 UTC | 2.8ml | 108 km SSE of Perryville, Alaska 55.020°, -158.457° | 22.2 km | - | - | - | ✓ Reviewed | USGS → |
At 16:08 UTC on April 6, 2021, a magnitude 2.8 tremor occurred 108 km SSE of Perryville, Alaska. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 16:07:43 UTC | 2.6ml | 100 km SSE of Sand Point, Alaska 54.578°, -159.639° | 23.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 100 km SSE of Sand Point, Alaska on April 6, 2021 at 16:07 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 M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 15:44:55 UTC | 4.8mb | Kermadec Islands, New Zealand -29.715°, -177.186° | 12.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake near Kermadec Islands, New Zealand came in on April 6, 2021 at 15:44 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-06 2021-04-06 15:41:53 UTC | 4.4mb | 245 km ENE of Levuka, Fiji -17.318°, -178.506° | 572.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 245 km ENE of Levuka, Fiji at 15:41 UTC on April 6, 2021. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 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 April 6, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.