Earthquakes on March 6, 2021

475
EARTHQUAKES on March 6, 2021
24-hour UTC period · USGS data
13 km deep · 16 people felt it
Elevated activity
compared to daily average (~250/day)

Magnitude Breakdown

M5.0+
48
M4.0–4.9
169
M3.0–3.9
7
M2.0–2.9
62
M1.0–1.9
189

Activity Summary

475
Total earthquakes
~250
Daily average
Elevated
Activity level
48
M5.0+ events

Geographic Breakdown

Top Countries (International)

Earthquake Map — March 6, 2021

Map showing earthquake epicenter at 20.00°, 0.00°

All Earthquakes — March 6, 2021

Showing 30 of 286 (filtered from 475)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
Time ↓Mag ↕Location ↕Depth ↕Felt ↕MMIAlertStatusDetails
2021-03-06
2021-03-06 23:53:25 UTC
4.3mb
14 km NNE of Rasht, Tajikistan
39.150°, 70.430°
10.0 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.3 earthquake 14 km NNE of Rasht, Tajikistan at 23:53 UTC on March 6, 2021. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 23:37:14 UTC
5.0mb
Mariana Islands region
21.064°, 144.435°
10.0 km---✓ ReviewedUSGS →
On March 6, 2021 at 23:37 UTC, a magnitude 5.0 earthquake struck in the Mariana Islands region. This event falls inside the aftershock decay of a nearby magnitude 5.5 earthquake that occurred about 5 hours earlier. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 23:37:14 UTC
4.7mb
229 km NE of Gisborne, New Zealand
-37.317°, 179.996°
13.3 km---✓ ReviewedUSGS →
A magnitude 4.7 seismic event took place 229 km NE of Gisborne, New Zealand on March 6, 2021 at 23:37 UTC. Coming 22 hours after a magnitude 5.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 23:35:47 UTC
2.2md
21km ENE of Le Grand, CA
37.298°, -120.024°
19.4 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 2.2 earthquake 21km ENE of Le Grand, CA with origin time 23:35 UTC on March 6, 2021. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 23:30:05 UTC
5.6mww
Kermadec Islands region
-28.384°, -177.777°
17.8 km-IIIgreen✓ ReviewedUSGS →
A magnitude 5.6 seismic event took place in the Kermadec Islands region on March 6, 2021 at 23:30 UTC. Coming 11 hours after a magnitude 6.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 23:18:26 UTC
4.6mb
Kermadec Islands, New Zealand
-29.967°, -177.124°
10.0 km---✓ ReviewedUSGS →
On March 6, 2021 at 23:18 UTC, a magnitude 4.6 earthquake struck near Kermadec Islands, New Zealand. It arrived roughly 16 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 23:08:23 UTC
4.4mb
south of the Fiji Islands
-24.269°, 179.469°
525.4 km---✓ ReviewedUSGS →
A magnitude 4.4 seismic event took place south of the Fiji Islands on March 6, 2021 at 23:08 UTC. 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.
2021-03-06
2021-03-06 23:08:08 UTC
5.2mb
Kermadec Islands region
-29.180°, -176.749°
10.0 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 5.2 earthquake in the Kermadec Islands region with origin time 23:08 UTC on March 6, 2021. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 23:04:58 UTC
4.9mb
Kermadec Islands region
-29.349°, -176.985°
10.0 km---✓ ReviewedUSGS →
A magnitude 4.9 seismic event took place in the Kermadec Islands region on March 6, 2021 at 23:04 UTC. It arrived roughly 22 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:59:38 UTC
2.1ml
2 km S of Port Coquitlam, Canada
49.247°, -122.767°
23.9 km---✓ ReviewedUSGS →
A magnitude 2.1 earthquake was recorded 2 km S of Port Coquitlam, Canada on March 6, 2021 at 22:59 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:58:24 UTC
4.7mb
208 km NE of Gisborne, New Zealand
-37.453°, 179.835°
10.0 km---✓ ReviewedUSGS →
March 6, 2021 brought a magnitude 4.7 earthquake 208 km NE of Gisborne, New Zealand, logged at 22:58 UTC. It arrived roughly 21 hours after a larger magnitude 5.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:51:42 UTC
4.1mb
Kermadec Islands, New Zealand
-29.913°, -177.290°
10.0 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.1 earthquake near Kermadec Islands, New Zealand at 22:51 UTC on March 6, 2021. This event falls inside the aftershock decay of a nearby magnitude 4.7 earthquake that occurred about 15 hours earlier. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:48:54 UTC
2.4ml
25 km S of Atka, Alaska
51.975°, -174.135°
96.8 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 2.4 earthquake 25 km S of Atka, Alaska with origin time 22:48 UTC on March 6, 2021. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:45:13 UTC
2.3ml
20 km SW of Point Possession, Alaska
60.782°, -150.917°
85.7 km---✓ ReviewedUSGS →
March 6, 2021 brought a magnitude 2.3 earthquake 20 km SW of Point Possession, Alaska, logged at 22:45 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:39:45 UTC
4.4mb
162 km NE of Opotiki, New Zealand
-37.148°, 178.771°
34.3 km---✓ ReviewedUSGS →
March 6, 2021 brought a magnitude 4.4 earthquake 162 km NE of Opotiki, New Zealand, logged at 22:39 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:32:56 UTC
2.3ml
12km WSW of Searles Valley, CA
35.720°, -117.521°
8.5 km---✓ ReviewedUSGS →
On March 6, 2021, worldwide seismic activity registered a magnitude 2.3 earthquake 12km WSW of Searles Valley, CA at 22:32 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:25:33 UTC
3.6mb
155 km SE of Atka, Alaska
51.317°, -172.442°
23.1 km---✓ ReviewedUSGS →
Reports of a magnitude 3.6 earthquake 155 km SE of Atka, Alaska came in on March 6, 2021 at 22:25 UTC. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 22:04:12 UTC
4.2mb
Kermadec Islands region
-28.560°, -177.766°
12.9 km---✓ ReviewedUSGS →
A magnitude 4.2 earthquake was recorded in the Kermadec Islands region on March 6, 2021 at 22:04 UTC. Coming 11 hours after a magnitude 6.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 21:57:24 UTC
4.3mb
Maug Islands region, Northern Mariana Islands
20.883°, 144.429°
10.0 km---✓ ReviewedUSGS →
This magnitude 4.3 event was detected in the Maug Islands region, Northern Mariana Islands on March 6, 2021, with origin time 21:57 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.7 earthquake that occurred about 3 hours earlier. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 21:47:39 UTC
5.1mb
Kermadec Islands region
-28.495°, -176.482°
10.0 km---✓ ReviewedUSGS →
March 6, 2021 brought a magnitude 5.1 earthquake in the Kermadec Islands region, logged at 21:47 UTC. Coming 4 hours after a magnitude 5.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 21:42:50 UTC
5.2mb
Kermadec Islands region
-28.401°, -176.309°
10.0 km---✓ ReviewedUSGS →
On March 6, 2021, worldwide seismic activity registered a magnitude 5.2 earthquake in the Kermadec Islands region at 21:42 UTC. Coming 4 hours after a magnitude 5.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 21:41:14 UTC
4.8mb
Mariana Islands region
21.073°, 144.454°
10.0 km---✓ ReviewedUSGS →
On March 6, 2021 at 21:41 UTC, a magnitude 4.8 earthquake struck in the Mariana Islands region. It arrived roughly 3 hours after a larger magnitude 5.5 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.
2021-03-06
2021-03-06 21:40:34 UTC
4.3mb
Mariana Islands region
21.032°, 144.611°
10.0 km---✓ ReviewedUSGS →
Reports of a magnitude 4.3 earthquake in the Mariana Islands region came in on March 6, 2021 at 21:40 UTC. Coming 3 hours after a magnitude 5.5 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.
2021-03-06
2021-03-06 21:35:56 UTC
4.6mb
Mariana Islands region
21.073°, 144.437°
10.0 km---✓ ReviewedUSGS →
A magnitude 4.6 earthquake was recorded in the Mariana Islands region on March 6, 2021 at 21:35 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.5 earthquake that occurred about 3 hours earlier. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 21:22:36 UTC
4.7mb
Kermadec Islands region
-28.357°, -177.251°
10.0 km---✓ ReviewedUSGS →
On March 6, 2021 at 21:22 UTC, a magnitude 4.7 earthquake struck in the Kermadec Islands region. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 21:18:38 UTC
2.2ml
south of Alaska
54.344°, -159.848°
25.3 km---✓ ReviewedUSGS →
March 6, 2021 brought a magnitude 2.2 earthquake south of Alaska, logged at 21:18 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 10 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 21:17:43 UTC
3.2ml
28 km E of Honaunau-Napoopoo, Hawaii
19.466°, -155.595°
-3.4 km2III-✓ ReviewedUSGS →
A magnitude 3.2 earthquake was recorded 28 km E of Honaunau-Napoopoo, Hawaii on March 6, 2021 at 21:17 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 20:55:28 UTC
2.9ml
136 km SSE of Sand Point, Alaska
54.227°, -159.607°
24.9 km---✓ ReviewedUSGS →
At 20:55 UTC on March 6, 2021, a magnitude 2.9 tremor occurred 136 km SSE of Sand Point, Alaska. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 20:45:18 UTC
5.1mb
Kermadec Islands region
-28.481°, -177.979°
10.0 km---✓ ReviewedUSGS →
On March 6, 2021 at 20:45 UTC, a magnitude 5.1 earthquake struck in the Kermadec Islands region. It arrived roughly 9 hours after a larger magnitude 6.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-03-06
2021-03-06 20:40:23 UTC
2.3md
4 km E of P?hala, Hawaii
19.206°, -155.440°
34.5 km---AutoUSGS →
At 20:40 UTC on March 6, 2021, a magnitude 2.3 tremor occurred 4 km E of P?hala, Hawaii. Coming 18 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.3 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 6, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.