Earthquakes on April 9, 2021
298
EARTHQUAKES on April 9, 2021
24-hour UTC period · USGS data
LARGEST: M5.2 — 102 km N of Naze, Japan
10 km deep · 1 person felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
31
M3.0–3.9
9
M2.0–2.9
77
M1.0–1.9
179
Activity Summary
298
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.2
102 km N of Naze, Japan
22:07 UTC · 10.0 km deep
Felt by 1
5.1
southeast of the Loyalty Islands
12:51 UTC · 10.0 km deep
4.9
Kermadec Islands, New Zealand
09:00 UTC · 35.0 km deep
4.8
12 km ENE of Tanlad, Philippines
13:39 UTC · 137.1 km deep
4.7
southeast of the Loyalty Islands
17:55 UTC · 10.0 km deep
4.7
south of the Fiji Islands
12:51 UTC · 568.0 km deep
4.7
213 km ENE of Levuka, Fiji
11:24 UTC · 521.7 km deep
4.7
129 km ENE of Fais, Micronesia
09:07 UTC · 10.0 km deep
Earthquake Map — April 9, 2021
All Earthquakes — April 9, 2021
Showing 30 of 119 (filtered from 298)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-04-09 2021-04-09 23:19:42 UTC | 3.4ml | 100 km SSE of Sand Point, Alaska 54.556°, -159.710° | 23.6 km | - | - | - | ✓ Reviewed | USGS → |
At 23:19 UTC on April 9, 2021, a magnitude 3.4 tremor occurred 100 km SSE of Sand Point, Alaska. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 23:12:21 UTC | 2.3md | 26km S of Hayfork, CA 40.321°, -123.217° | 37.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 26km S of Hayfork, CA with origin time 23:12 UTC on April 9, 2021. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 22:54:49 UTC | 2.3ml | 18km ESE of Little Lake, CA 35.894°, -117.709° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
On April 9, 2021, worldwide seismic activity registered a magnitude 2.3 earthquake 18km ESE of Little Lake, CA at 22:54 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 22:20:57 UTC | 2.1md | 8 km ENE of P?hala, Hawaii 19.239°, -155.412° | 32.3 km | - | - | - | Auto | USGS → |
A magnitude 2.1 earthquake was recorded 8 km ENE of P?hala, Hawaii on April 9, 2021 at 22:20 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 12 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 22:11:29 UTC | 2.4md | 3 km W of Guayanilla, Puerto Rico 18.023°, -66.820° | 17.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 3 km W of Guayanilla, Puerto Rico at 22:11 UTC on April 9, 2021. Coming 7 hours after a magnitude 2.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 22:07:30 UTC | 5.2mww | 102 km N of Naze, Japan 29.291°, 129.406° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On April 9, 2021 at 22:07 UTC, a magnitude 5.2 earthquake struck 102 km N of Naze, Japan. It is the largest earthquake currently listed for worldwide seismic activity on April 9, 2021. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 21:26:33 UTC | 2.5ml | 56 km S of Whites City, New Mexico 31.667°, -104.366° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 56 km S of Whites City, New Mexico at 21:26 UTC on April 9, 2021. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 21:24:32 UTC | 2.2md | 2 km SW of Guánica, Puerto Rico 17.956°, -66.920° | 17.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 2 km SW of Guánica, Puerto Rico with origin time 21:24 UTC on April 9, 2021. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 6 hours earlier. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 20:55:59 UTC | 4.5mb | 243 km NE of Gisborne, New Zealand -36.996°, 179.811° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 9, 2021 at 20:55 UTC, a magnitude 4.5 earthquake struck 243 km NE of Gisborne, New Zealand. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 20:49:36 UTC | 4.1mb | 217 km NE of Gisborne, New Zealand -37.476°, 179.983° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 217 km NE of Gisborne, New Zealand on April 9, 2021 at 20:49 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 20:48:08 UTC | 2.3md | 4 km S of P?hala, Hawaii 19.163°, -155.484° | 33.2 km | - | - | - | Auto | USGS → |
On April 9, 2021 at 20:48 UTC, a magnitude 2.3 earthquake struck 4 km S of P?hala, Hawaii. Coming 11 hours after a magnitude 2.3 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. | ||||||||
2021-04-09 2021-04-09 20:34:58 UTC | 3.6ml | 35 km W of Nikolski, Alaska 52.903°, -169.390° | 143.4 km | - | - | - | ✓ Reviewed | USGS → |
On April 9, 2021, worldwide seismic activity registered a magnitude 3.6 earthquake 35 km W of Nikolski, Alaska at 20:34 UTC. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 20:29:53 UTC | 2.3ml | 9km N of Westmorland, CA 33.117°, -115.627° | 9.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 9km N of Westmorland, CA on April 9, 2021 at 20:29 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 20:09:03 UTC | 4.1mb | 40 km NNW of Pototano, Indonesia -8.105°, 117.275° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
April 9, 2021 brought a magnitude 4.1 earthquake 40 km NNW of Pototano, Indonesia, logged at 20:09 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 19:55:43 UTC | 2.5ml | 62 km SSW of Whites City, New Mexico 31.624°, -104.525° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 62 km SSW of Whites City, New Mexico on April 9, 2021, with origin time 19:55 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 19:49:49 UTC | 2.0ml | 9 km E of P?hala, Hawaii 19.208°, -155.385° | 29.6 km | - | - | - | Auto | USGS → |
At 19:49 UTC on April 9, 2021, a magnitude 2.0 tremor occurred 9 km E of P?hala, Hawaii. Coming 10 hours after a magnitude 2.3 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. | ||||||||
2021-04-09 2021-04-09 19:25:45 UTC | 2.1ml | 102 km SSE of Sand Point, Alaska 54.507°, -159.815° | 21.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 102 km SSE of Sand Point, Alaska at 19:25 UTC on April 9, 2021. Coming 4 hours after a magnitude 2.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 19:05:04 UTC | 2.7ml | 11 km W of Volcano, Hawaii 19.438°, -155.345° | 3.9 km | - | - | - | Auto | USGS → |
On April 9, 2021, worldwide seismic activity registered a magnitude 2.7 earthquake 11 km W of Volcano, Hawaii at 19:05 UTC. Coming 1 hours after a magnitude 2.8 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. | ||||||||
2021-04-09 2021-04-09 19:05:03 UTC | 2.8ml | 9 km WSW of Volcano, Hawaii 19.417°, -155.324° | 5.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 9 km WSW of Volcano, Hawaii came in on April 9, 2021 at 19:05 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 19:04:58 UTC | 2.1ml | 9 km WSW of Volcano, Hawaii 19.416°, -155.324° | 5.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 9 km WSW of Volcano, Hawaii with origin time 19:04 UTC on April 9, 2021. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 19:04:40 UTC | 2.3ml | 55 km S of Whites City, New Mexico 31.678°, -104.392° | 7.2 km | - | - | - | ✓ Reviewed | USGS → |
At 19:04 UTC on April 9, 2021, a magnitude 2.3 tremor occurred 55 km S of Whites City, New Mexico. Coming 12 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. | ||||||||
2021-04-09 2021-04-09 18:36:46 UTC | 4.5mb | 7 km WNW of Paltin, Romania 45.804°, 26.627° | 77.4 km | 6 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 7 km WNW of Paltin, Romania on April 9, 2021 at 18:36 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 18:28:11 UTC | 2.3ml | 2 km ESE of P?hala, Hawaii 19.197°, -155.456° | 34.6 km | - | - | - | Auto | USGS → |
April 9, 2021 brought a magnitude 2.3 earthquake 2 km ESE of P?hala, Hawaii, logged at 18:28 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 8 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 18:26:35 UTC | 4.1mb | 101 km SSE of Isangel, Vanuatu -20.334°, 169.761° | 77.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 9, 2021 at 18:26 UTC, a magnitude 4.1 earthquake struck 101 km SSE of Isangel, Vanuatu. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 18:19:10 UTC | 3.3ml | 28 km S of Adak, Alaska 51.622°, -176.628° | 68.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.3 earthquake 28 km S of Adak, Alaska came in on April 9, 2021 at 18:19 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 18:15:04 UTC | 2.0ml | 99 km SSE of Sand Point, Alaska 54.529°, -159.836° | 6.4 km | - | - | - | ✓ Reviewed | USGS → |
On April 9, 2021 at 18:15 UTC, a magnitude 2.0 earthquake struck 99 km SSE of Sand Point, Alaska. Coming 3 hours after a magnitude 2.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 18:06:48 UTC | 2.4ml | 77 km SE of New Allakaket, Alaska 65.994°, -151.577° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 77 km SE of New Allakaket, Alaska came in on April 9, 2021 at 18:06 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 17:58:09 UTC | 2.4ml | 23 km E of Honaunau-Napoopoo, Hawaii 19.472°, -155.646° | 3.4 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 23 km E of Honaunau-Napoopoo, Hawaii on April 9, 2021, with origin time 17:58 UTC. 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. | ||||||||
2021-04-09 2021-04-09 17:57:19 UTC | 4.5mb | southeast of the Loyalty Islands -23.405°, 171.680° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake southeast of the Loyalty Islands with origin time 17:57 UTC on April 9, 2021. It arrived roughly 5 hours after a larger magnitude 5.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-04-09 2021-04-09 17:55:50 UTC | 4.7mb | southeast of the Loyalty Islands -23.460°, 171.700° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 17:55 UTC on April 9, 2021, a magnitude 4.7 tremor occurred southeast of the Loyalty Islands. 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 April 9, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.