Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2021-04-16 2021-04-16 23:23:08 UTC	4.3mb	113 km ESE of Madang, Papua New Guinea -5.445°, 146.786°	266.4 km	-	-	-	✓ Reviewed	USGS →
On April 16, 2021, worldwide seismic activity registered a magnitude 4.3 earthquake 113 km ESE of Madang, Papua New Guinea at 23:23 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 23:11:03 UTC	3.0ml	204 km WSW of Adak, Alaska 50.922°, -179.149°	12.7 km	-	-	-	✓ Reviewed	USGS →
A magnitude 3.0 seismic event took place 204 km WSW of Adak, Alaska on April 16, 2021 at 23:11 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 22:57:05 UTC	4.4mwr	86 km NNW of Te Anau, New Zealand -44.761°, 167.130°	19.9 km	4	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.4 earthquake 86 km NNW of Te Anau, New Zealand at 22:57 UTC on April 16, 2021. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 22:40:14 UTC	2.4md	1 km E of P?hala, Hawaii 19.203°, -155.464°	36.6 km	-	-	-	Auto	USGS →
Seismographs logged a magnitude 2.4 earthquake 1 km E of P?hala, Hawaii with origin time 22:40 UTC on April 16, 2021. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 22:13:10 UTC	5.1mww	Kermadec Islands region -28.434°, -176.476°	10.0 km	-	-	-	✓ Reviewed	USGS →
On April 16, 2021, worldwide seismic activity registered a magnitude 5.1 earthquake in the Kermadec Islands region at 22:13 UTC. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 20:55:11 UTC	5.4mww	246 km SE of Sarangani, Philippines 3.577°, 126.735°	35.0 km	-	III	green	✓ Reviewed	USGS →
On April 16, 2021 at 20:55 UTC, a magnitude 5.4 earthquake struck 246 km SE of Sarangani, Philippines. 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 April 16, 2021. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 20:00:59 UTC	2.7ml	24 km NNW of Wright, Wyoming 43.954°, -105.624°	0.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.7 earthquake 24 km NNW of Wright, Wyoming at 20:00 UTC on April 16, 2021. 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.
2021-04-16 2021-04-16 20:00:18 UTC	5.0mb	Kermadec Islands, New Zealand -30.414°, -177.766°	10.0 km	-	-	-	✓ Reviewed	USGS →
At 20:00 UTC on April 16, 2021, a magnitude 5.0 tremor occurred near Kermadec Islands, New Zealand. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 19:58:50 UTC	2.1ml	39 km NNW of Valdez, Alaska 61.480°, -146.513°	15.8 km	-	-	-	✓ Reviewed	USGS →
April 16, 2021 brought a magnitude 2.1 earthquake 39 km NNW of Valdez, Alaska, logged at 19:58 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 19:49:06 UTC	4.3mb	Kermadec Islands, New Zealand -29.959°, -177.845°	59.4 km	-	-	-	✓ Reviewed	USGS →
At 19:49 UTC on April 16, 2021, a magnitude 4.3 tremor occurred near Kermadec Islands, New Zealand. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 19:47:10 UTC	4.9mb	South Shetland Islands -62.253°, -58.111°	14.6 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.9 event was detected near South Shetland Islands on April 16, 2021, with origin time 19:47 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 19:25:35 UTC	2.0md	3 km E of P?hala, Hawaii 19.205°, -155.447°	31.4 km	-	-	-	Auto	USGS →
Reports of a magnitude 2.0 earthquake 3 km E of P?hala, Hawaii came in on April 16, 2021 at 19:25 UTC. Coming 4 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.
2021-04-16 2021-04-16 19:11:54 UTC	2.9ml	233 km SE of Chiniak, Alaska 55.971°, -149.913°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.9 earthquake was recorded 233 km SE of Chiniak, Alaska on April 16, 2021 at 19:11 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 18:47:11 UTC	2.1md	9km NNE of Burney, CA 40.962°, -121.634°	13.5 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.1 earthquake 9km NNE of Burney, CA with origin time 18:47 UTC on April 16, 2021. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 18:33:40 UTC	3.0ml	142 km ESE of Nikolski, Alaska 52.597°, -166.831°	6.4 km	-	-	-	✓ Reviewed	USGS →
April 16, 2021 brought a magnitude 3.0 earthquake 142 km ESE of Nikolski, Alaska, logged at 18:33 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 18:15:58 UTC	2.3ml	36 km SE of Denali National Park, Alaska 63.315°, -151.208°	14.0 km	-	-	-	✓ Reviewed	USGS →
At 18:15 UTC on April 16, 2021, a magnitude 2.3 tremor occurred 36 km SE of Denali National Park, Alaska. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 17:53:29 UTC	4.4mb	Fiji region -20.043°, -177.978°	554.6 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.4 event was detected in the Fiji region on April 16, 2021, with origin time 17:53 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.
2021-04-16 2021-04-16 17:22:27 UTC	4.5mb	Kermadec Islands region -28.712°, -176.708°	10.0 km	-	-	-	✓ Reviewed	USGS →
April 16, 2021 brought a magnitude 4.5 earthquake in the Kermadec Islands region, logged at 17:22 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 17:20:05 UTC	2.9ml	3 km WNW of Leonidas, Minnesota 47.471°, -92.623°	0.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.9 earthquake 3 km WNW of Leonidas, Minnesota with origin time 17:20 UTC on April 16, 2021. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 17:10:05 UTC	2.0md	4 km SSE of G. L. Garcia, Puerto Rico 18.096°, -66.084°	15.0 km	-	-	-	✓ Reviewed	USGS →
At 17:10 UTC on April 16, 2021, a magnitude 2.0 tremor occurred 4 km SSE of G. L. Garcia, Puerto Rico. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 16:40:30 UTC	5.4mww	Fiji region -21.716°, -179.347°	577.7 km	-	I	green	✓ Reviewed	USGS →
A magnitude 5.4 earthquake was recorded in the Fiji region on April 16, 2021 at 16:40 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. This is the deepest earthquake in the current dataset — a deep-focus event. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 16:23:32 UTC	2.0ml	7 km E of P?hala, Hawaii 19.200°, -155.403°	34.5 km	-	-	-	Auto	USGS →
This magnitude 2.0 event was detected 7 km E of P?hala, Hawaii on April 16, 2021, with origin time 16:23 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 16:21:49 UTC	4.5mb	48 km E of Hualien City, Taiwan 23.919°, 122.073°	20.3 km	-	-	-	✓ Reviewed	USGS →
On April 16, 2021 at 16:21 UTC, a magnitude 4.5 earthquake struck 48 km E of Hualien City, Taiwan. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 16:17:12 UTC	2.1md	14km NW of Midpines, CA 37.637°, -120.032°	29.1 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.1 earthquake 14km NW of Midpines, CA came in on April 16, 2021 at 16:17 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 15:35:27 UTC	2.3ml	2 km SSE of P?hala, Hawaii 19.183°, -155.471°	32.8 km	-	-	-	Auto	USGS →
On April 16, 2021, worldwide seismic activity registered a magnitude 2.3 earthquake 2 km SSE of P?hala, Hawaii at 15:35 UTC. In the 72 hours after this event, the USGS recorded 5 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.
2021-04-16 2021-04-16 15:24:34 UTC	4.2mb	175 km SW of Merizo Village, Guam 11.963°, 143.752°	10.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.2 earthquake 175 km SW of Merizo Village, Guam came in on April 16, 2021 at 15:24 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 15:11:52 UTC	4.4mb	63 km SE of Yonakuni, Japan 24.119°, 123.499°	17.8 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.4 earthquake 63 km SE of Yonakuni, Japan came in on April 16, 2021 at 15:11 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 15:01:00 UTC	2.0ml	1km NNE of Laguna Beach, CA 33.552°, -117.779°	13.5 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.0 earthquake 1km NNE of Laguna Beach, CA at 15:01 UTC on April 16, 2021. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 14:54:56 UTC	2.5ml	25 km SE of Adak, Alaska 51.722°, -176.366°	77.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.5 seismic event took place 25 km SE of Adak, Alaska on April 16, 2021 at 14:54 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-04-16 2021-04-16 13:48:34 UTC	4.5mb	257 km SSE of Amahai, Indonesia -5.567°, 129.596°	170.9 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.5 earthquake was recorded 257 km SSE of Amahai, Indonesia on April 16, 2021 at 13:48 UTC. See the M4.5 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 16, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.

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April 15, 2021 April 17, 2021

Earthquakes on April 16, 2021

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