Earthquakes on March 8, 2021
317
EARTHQUAKES on March 8, 2021
24-hour UTC period · USGS data
LARGEST: M5.4 — Kermadec Islands region
10 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
18
M4.0–4.9
64
M3.0–3.9
13
M2.0–2.9
49
M1.0–1.9
173
Activity Summary
317
Total earthquakes
~250
Daily average
Elevated
Activity level
18
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.4
Kermadec Islands region
12:03 UTC · 10.0 km deep
5.2
Kermadec Islands region
23:51 UTC · 10.0 km deep
5.2
Kermadec Islands region
21:21 UTC · 10.0 km deep
5.2
95 km NE of Los Andes, Chile
12:48 UTC · 106.7 km deep
Felt by 21
5.2
Kermadec Islands region
08:44 UTC · 10.0 km deep
5.1
Kermadec Islands region
21:53 UTC · 10.0 km deep
Felt by 1
5.1
Kermadec Islands, New Zealand
19:36 UTC · 10.0 km deep
5.1
Kermadec Islands region
05:27 UTC · 10.0 km deep
Felt by 1
Earthquake Map — March 8, 2021

All Earthquakes — March 8, 2021
Showing 30 of 144 (filtered from 317)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-03-08 2021-03-08 23:52:12 UTC | 3.1ml | 123 km WSW of Adak, Alaska 51.266°, -178.132° | 30.4 km | - | - | - | ✓ Reviewed | USGS → |
On March 8, 2021 at 23:52 UTC, a magnitude 3.1 earthquake struck 123 km WSW of Adak, Alaska. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 23:51:37 UTC | 5.2mww | Kermadec Islands region -28.866°, -176.094° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.2 earthquake was recorded in the Kermadec Islands region on March 8, 2021 at 23:51 UTC. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 23:30:00 UTC | 4.9mb | 34 km SSW of ?funato, Japan 38.790°, 141.555° | 83.3 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 seismic event took place 34 km SSW of ?funato, Japan on March 8, 2021 at 23:30 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 23:09:53 UTC | 4.8mb | Kermadec Islands, New Zealand -29.928°, -177.200° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake near Kermadec Islands, New Zealand came in on March 8, 2021 at 23:09 UTC. It arrived roughly 1 hours after a larger magnitude 4.9 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 23:09:50 UTC | 2.3md | 4 km ENE of P?hala, Hawaii 19.215°, -155.442° | 31.9 km | - | - | - | Auto | USGS → |
A magnitude 2.3 earthquake was recorded 4 km ENE of P?hala, Hawaii on March 8, 2021 at 23:09 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 4 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 23:07:21 UTC | 4.9mb | Kermadec Islands, New Zealand -29.812°, -177.185° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
March 8, 2021 brought a magnitude 4.9 earthquake near Kermadec Islands, New Zealand, logged at 23:07 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 8 hours earlier. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 22:58:38 UTC | 4.6mb | Kermadec Islands, New Zealand -30.048°, -177.035° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake near Kermadec Islands, New Zealand at 22:58 UTC on March 8, 2021. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 22:50:33 UTC | 2.5md | 10 km S of Tallaboa, Puerto Rico 17.903°, -66.707° | 4.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 8, 2021 at 22:50 UTC, a magnitude 2.5 earthquake struck 10 km S of Tallaboa, Puerto Rico. Coming 14 hours after a magnitude 3.1 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 M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 22:45:21 UTC | 2.6ml | 20 km N of Perryville, Alaska 56.091°, -159.113° | 78.9 km | - | - | - | ✓ Reviewed | USGS → |
At 22:45 UTC on March 8, 2021, a magnitude 2.6 tremor occurred 20 km N of Perryville, Alaska. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 22:26:59 UTC | 4.5mb | Kermadec Islands, New Zealand -29.707°, -177.110° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:26 UTC on March 8, 2021, a magnitude 4.5 tremor occurred near Kermadec Islands, New Zealand. Coming 1 hours after a magnitude 5.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 22:26:40 UTC | 2.0md | 27 km E of Honaunau-Napoopoo, Hawaii 19.442°, -155.606° | -0.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 27 km E of Honaunau-Napoopoo, Hawaii came in on March 8, 2021 at 22:26 UTC. This is the shallowest earthquake in the current dataset — a shallow crustal event. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 21:53:46 UTC | 5.1mb | Kermadec Islands region -29.731°, -176.998° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.1 earthquake in the Kermadec Islands region at 21:53 UTC on March 8, 2021. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 21:50:13 UTC | 2.3ml | 46 km E of Port Alsworth, Alaska 60.277°, -153.498° | 176.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 46 km E of Port Alsworth, Alaska on March 8, 2021, with origin time 21:50 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 21:30:18 UTC | 2.5ml | 27km WSW of Baker, CA 35.156°, -116.335° | 1.7 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 seismic event took place 27km WSW of Baker, CA on March 8, 2021 at 21:30 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 21:21:41 UTC | 5.2mb | Kermadec Islands region -29.410°, -176.693° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.2 earthquake in the Kermadec Islands region with origin time 21:21 UTC on March 8, 2021. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 21:06:14 UTC | 4.5mb | Kermadec Islands region -29.511°, -176.107° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake in the Kermadec Islands region at 21:06 UTC on March 8, 2021. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 20:41:07 UTC | 2.2md | 12km NW of Pinnacles, CA 36.618°, -121.222° | 4.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 12km NW of Pinnacles, CA at 20:41 UTC on March 8, 2021. 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. | ||||||||
2021-03-08 2021-03-08 20:33:16 UTC | 4.1mb | 81 km NNE of Tobelo, Indonesia 2.351°, 128.395° | 239.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected 81 km NNE of Tobelo, Indonesia on March 8, 2021, with origin time 20:33 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 20:32:23 UTC | 3.1ml | 50 km WNW of Happy Valley, Alaska 60.096°, -152.586° | 91.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 earthquake was recorded 50 km WNW of Happy Valley, Alaska on March 8, 2021 at 20:32 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 20:20:10 UTC | 4.5mb | 282 km N of Dili, Timor Leste -6.039°, 125.173° | 572.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 282 km N of Dili, Timor Leste on March 8, 2021, with origin time 20:20 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 20:04:13 UTC | 2.0ml | 35 km SE of Mina, Nevada 38.177°, -117.803° | 8.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 35 km SE of Mina, Nevada on March 8, 2021 at 20:04 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 19:54:18 UTC | 2.9ml | 109 km SSE of Sand Point, Alaska 54.459°, -159.745° | 16.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.9 earthquake 109 km SSE of Sand Point, Alaska came in on March 8, 2021 at 19:54 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.5 earthquake that occurred about 11 hours earlier. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 19:44:15 UTC | 4.7mb | 230 km NE of Gisborne, New Zealand -37.501°, -179.813° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded 230 km NE of Gisborne, New Zealand on March 8, 2021 at 19:44 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.9 earthquake that occurred about 18 hours earlier. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 19:36:30 UTC | 5.1mb | Kermadec Islands, New Zealand -29.567°, -177.070° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 5.1 event was detected near Kermadec Islands, New Zealand on March 8, 2021, with origin time 19:36 UTC. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 19:26:05 UTC | 4.3mb | 180 km NE of Gisborne, New Zealand -37.565°, 179.539° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 180 km NE of Gisborne, New Zealand at 19:26 UTC on March 8, 2021. Coming 17 hours after a magnitude 4.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 19:24:08 UTC | 2.4md | 0 km WSW of P?hala, Hawaii 19.200°, -155.486° | 31.1 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.4 earthquake 0 km WSW of P?hala, Hawaii at 19:24 UTC on March 8, 2021. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 19:21:55 UTC | 2.5ml | 53 km S of Whites City, New Mexico 31.694°, -104.298° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 53 km S of Whites City, New Mexico on March 8, 2021 at 19:21 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 18:56:19 UTC | 2.9md | 12 km SSE of Maria Antonia, Puerto Rico 17.874°, -66.848° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 12 km SSE of Maria Antonia, Puerto Rico on March 8, 2021 at 18:56 UTC. Coming 10 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 18:55:22 UTC | 4.4mb | 74 km WNW of Kirakira, Solomon Islands -10.183°, 161.299° | 95.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 8, 2021, worldwide seismic activity registered a magnitude 4.4 earthquake 74 km WNW of Kirakira, Solomon Islands at 18:55 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-08 2021-03-08 18:48:45 UTC | 2.1ml | 51 km NW of Toyah, Texas 31.604°, -104.218° | 6.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 51 km NW of Toyah, Texas came in on March 8, 2021 at 18:48 UTC. The event was offshore. See the M2.1 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 March 8, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.