Earthquakes on March 29, 2021
269
EARTHQUAKES on March 29, 2021
24-hour UTC period · USGS data
LARGEST: M5.5 — western Xizang
8 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
30
M3.0–3.9
8
M2.0–2.9
49
M1.0–1.9
176
Activity Summary
269
Total earthquakes
~250
Daily average
Normal
Activity level
6
M5.0+ events
Geographic Breakdown
Top Countries (International)
Significant Earthquakes (M4.5+)
5.5
western Xizang
17:27 UTC · 8.0 km deep
5.3
103 km SSE of Kieta, Papua New Guinea
07:43 UTC · 60.4 km deep
5.2
Mariana Islands region
19:42 UTC · 10.0 km deep
5.2
134 km ENE of Bathsheba, Barbados
06:35 UTC · 10.0 km deep
Felt by 4
5.2
90 km SW of Pagar Alam, Indonesia
04:13 UTC · 59.6 km deep
5.1
Mariana Islands region
19:45 UTC · 10.0 km deep
4.9
Mariana Islands region
19:15 UTC · 10.0 km deep
4.8
171 km SSE of Ust’-Kamchatsk Staryy, Russia
19:41 UTC · 10.0 km deep
Earthquake Map — March 29, 2021
All Earthquakes — March 29, 2021
Showing 30 of 93 (filtered from 269)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-03-29 2021-03-29 23:49:04 UTC | 4.3mb | 94 km NNE of Adak, Alaska 52.653°, -176.076° | 211.2 km | - | - | - | ✓ Reviewed | USGS → |
On March 29, 2021 at 23:49 UTC, a magnitude 4.3 earthquake struck 94 km NNE of Adak, Alaska. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 23:32:21 UTC | 4.7mb | Kermadec Islands region -29.282°, -176.722° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place in the Kermadec Islands region on March 29, 2021 at 23:32 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 23:20:36 UTC | 3.9mb | 224 km WSW of Adak, Alaska 51.346°, -179.764° | 51.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.9 event was detected 224 km WSW of Adak, Alaska on March 29, 2021, with origin time 23:20 UTC. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 23:15:51 UTC | 2.1ml | 9 km SSW of Milford, Utah 38.327°, -113.064° | -0.1 km | - | - | - | ✓ Reviewed | USGS → |
On March 29, 2021, worldwide seismic activity registered a magnitude 2.1 earthquake 9 km SSW of Milford, Utah at 23:15 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 22 hours earlier. 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. | ||||||||
2021-03-29 2021-03-29 23:02:09 UTC | 2.6ml | 63 km ENE of Akutan, Alaska 54.423°, -164.929° | 103.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 63 km ENE of Akutan, Alaska on March 29, 2021, with origin time 23:02 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 22:55:40 UTC | 2.1md | 2 km S of Magas Arriba, Puerto Rico 17.993°, -66.767° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 2 km S of Magas Arriba, Puerto Rico with origin time 22:55 UTC on March 29, 2021. It arrived roughly 21 hours after a larger magnitude 2.5 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. | ||||||||
2021-03-29 2021-03-29 22:49:13 UTC | 2.2ml | 4 km S of P?hala, Hawaii 19.165°, -155.479° | 31.3 km | - | - | - | Auto | USGS → |
At 22:49 UTC on March 29, 2021, a magnitude 2.2 tremor occurred 4 km S of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 2 hours earlier. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 22:16:01 UTC | 4.5mb | Panama-Costa Rica border region 8.394°, -82.867° | 19.9 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake in the Panama-Costa Rica border region came in on March 29, 2021 at 22:16 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 21:38:28 UTC | 2.0ml | 23 km NW of Stanley, Idaho 44.352°, -115.162° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 29, 2021 at 21:38 UTC, a magnitude 2.0 earthquake struck 23 km NW of Stanley, Idaho. Coming 1 hours after a magnitude 2.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 21:34:46 UTC | 2.6ml | 21 km NW of Stanley, Idaho 44.352°, -115.137° | 11.6 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 21 km NW of Stanley, Idaho came in on March 29, 2021 at 21:34 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 21:08:35 UTC | 4.4mb | 69 km ESE of Gigmoto, Philippines 13.546°, 124.991° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 69 km ESE of Gigmoto, Philippines with origin time 21:08 UTC on March 29, 2021. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 20:58:13 UTC | 2.2ml | western Texas 31.675°, -104.385° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake near western Texas at 20:58 UTC on March 29, 2021. Coming 18 hours after a magnitude 2.5 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. | ||||||||
2021-03-29 2021-03-29 20:54:30 UTC | 2.0md | 3 km S of P?hala, Hawaii 19.169°, -155.477° | 31.7 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.0 earthquake 3 km S of P?hala, Hawaii came in on March 29, 2021 at 20:54 UTC. It arrived roughly 1 hours after a larger magnitude 2.3 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 20:52:19 UTC | 2.3md | 2 km S of P?hala, Hawaii 19.177°, -155.476° | 32.7 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.3 earthquake 2 km S of P?hala, Hawaii with origin time 20:52 UTC on March 29, 2021. 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 20:50:02 UTC | 4.2mb | North Indian Ocean 2.848°, 89.769° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake near North Indian Ocean with origin time 20:50 UTC on March 29, 2021. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 20:46:37 UTC | 4.7mb | 26 km W of Santa Cruz, Costa Rica 10.237°, -85.825° | 31.9 km | 24 | - | - | ✓ Reviewed | USGS → |
March 29, 2021 brought a magnitude 4.7 earthquake 26 km W of Santa Cruz, Costa Rica, logged at 20:46 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 20:41:13 UTC | 4.6mb | Mariana Islands region 21.268°, 146.213° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded in the Mariana Islands region on March 29, 2021 at 20:41 UTC. Coming 1 hours after a magnitude 5.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 20:31:44 UTC | 4.2mb | 42 km ENE of Kiunga, Papua New Guinea -6.026°, 141.663° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 29, 2021, worldwide seismic activity registered a magnitude 4.2 earthquake 42 km ENE of Kiunga, Papua New Guinea at 20:31 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 19:47:36 UTC | 2.3md | 9 km SSW of Tallaboa, Puerto Rico 17.909°, -66.740° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 29, 2021, worldwide seismic activity registered a magnitude 2.3 earthquake 9 km SSW of Tallaboa, Puerto Rico at 19:47 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 19:45:33 UTC | 5.1mb | Mariana Islands region 21.419°, 146.091° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.1 earthquake in the Mariana Islands region at 19:45 UTC on March 29, 2021. Coming 1 hours after a magnitude 5.2 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. | ||||||||
2021-03-29 2021-03-29 19:42:54 UTC | 5.2mww | Mariana Islands region 21.318°, 146.083° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.2 earthquake in the Mariana Islands region with origin time 19:42 UTC on March 29, 2021. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 19:41:46 UTC | 4.8mb | 171 km SSE of Ust’-Kamchatsk Staryy, Russia 54.724°, 163.094° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake 171 km SSE of Ust’-Kamchatsk Staryy, Russia came in on March 29, 2021 at 19:41 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 19:40:12 UTC | 3.0ml | 9 km SW of Milford, Utah 38.336°, -113.090° | 4.6 km | - | III | - | ✓ Reviewed | USGS → |
At 19:40 UTC on March 29, 2021, a magnitude 3.0 tremor occurred 9 km SW of Milford, Utah. Coming 18 hours after a magnitude 3.2 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 M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 19:15:44 UTC | 4.9mb | Mariana Islands region 21.258°, 146.240° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.9 event was detected in the Mariana Islands region on March 29, 2021, with origin time 19:15 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 18:53:28 UTC | 2.0md | 16 km SSE of Sunnyside, Utah 39.419°, -110.310° | -1.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 16 km SSE of Sunnyside, Utah on March 29, 2021 at 18:53 UTC. 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. | ||||||||
2021-03-29 2021-03-29 18:42:00 UTC | 2.0ml | 28 km SSE of Mina, Nevada 38.151°, -117.985° | 5.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 28 km SSE of Mina, Nevada on March 29, 2021 at 18:42 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.7 earthquake that occurred about 8 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 18:38:18 UTC | 3.8mb | 20 km E of Julimes, Mexico 28.437°, -105.219° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.8 earthquake 20 km E of Julimes, Mexico came in on March 29, 2021 at 18:38 UTC. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 18:19:01 UTC | 4.3mb | 289 km E of Levuka, Fiji -18.289°, -177.960° | 613.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 289 km E of Levuka, Fiji on March 29, 2021 at 18:19 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.4 earthquake that occurred about 2 hours earlier. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 17:27:23 UTC | 5.5mww | western Xizang 34.355°, 87.692° | 8.0 km | - | VI | green | ✓ Reviewed | USGS → |
On March 29, 2021 at 17:27 UTC, a magnitude 5.5 earthquake struck near western Xizang. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on March 29, 2021. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-03-29 2021-03-29 17:21:03 UTC | 4.7mb | 91 km SSW of Panguna, Papua New Guinea -7.064°, 155.123° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 29, 2021 at 17:21 UTC, a magnitude 4.7 earthquake struck 91 km SSW of Panguna, Papua New Guinea. See the M4.7 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 29, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.