Earthquakes on August 16, 2020
353
EARTHQUAKES on August 16, 2020
24-hour UTC period · USGS data
LARGEST: M5.8 — 241 km ESE of Atka, Alaska
18 km deep · 1 person felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
27
M3.0–3.9
18
M2.0–2.9
85
M1.0–1.9
217
Activity Summary
353
Total earthquakes
~250
Daily average
Elevated
Activity level
6
M5.0+ events
Significant Earthquakes (M4.5+)
5.8
241 km ESE of Atka, Alaska
20:05 UTC · 18.0 km deep
Felt by 1
5.2
62 km W of Bantogon, Philippines
07:22 UTC · 582.6 km deep
5.2
127 km N of Gorontalo, Indonesia
06:26 UTC · 422.7 km deep
5.1
84 km S of Arica, Chile
03:18 UTC · 60.4 km deep
Felt by 16
5.0
26 km ESE of Basco, Philippines
02:53 UTC · 13.6 km deep
Felt by 1
5.0
South Sandwich Islands region
01:44 UTC · 85.1 km deep
4.9
129 km W of Labasa, Fiji
21:13 UTC · 10.0 km deep
Felt by 1
4.9
202 km E of Amahai, Indonesia
19:06 UTC · 13.4 km deep
Earthquake Map — August 16, 2020
All Earthquakes — August 16, 2020
Showing 30 of 136 (filtered from 353)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-08-16 2020-08-16 23:50:41 UTC | 2.9ml | 115 km SE of Akhiok, Alaska 56.098°, -153.078° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 earthquake was recorded 115 km SE of Akhiok, Alaska on August 16, 2020 at 23:50 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 23:47:14 UTC | 2.3ml | 115 km SE of Akhiok, Alaska 56.109°, -153.072° | 26.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 16, 2020 at 23:47 UTC, a magnitude 2.3 earthquake struck 115 km SE of Akhiok, Alaska. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 22:54:11 UTC | 2.5md | 6 km S of Indios, Puerto Rico 17.939°, -66.818° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
August 16, 2020 brought a magnitude 2.5 earthquake 6 km S of Indios, Puerto Rico, logged at 22:54 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 2 hours earlier. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 22:52:28 UTC | 4.0mb | 38 km W of N?r?b?d, Iran 30.081°, 51.123° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.0 earthquake 38 km W of N?r?b?d, Iran with origin time 22:52 UTC on August 16, 2020. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 22:46:24 UTC | 2.4md | 4 km SSE of Maria Antonia, Puerto Rico 17.937°, -66.878° | 16.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 4 km SSE of Maria Antonia, Puerto Rico on August 16, 2020 at 22:46 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 1 hours earlier. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 22:24:17 UTC | 2.3ml | 130 km SE of Perryville, Alaska 55.025°, -157.782° | 26.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 130 km SE of Perryville, Alaska on August 16, 2020 at 22:24 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 22:04:36 UTC | 3.8mb | 224 km ESE of Atka, Alaska 51.477°, -171.154° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.8 earthquake 224 km ESE of Atka, Alaska at 22:04 UTC on August 16, 2020. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 22:03:30 UTC | 2.2ml | 32 km WNW of Stanley, Idaho 44.344°, -115.312° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 32 km WNW of Stanley, Idaho on August 16, 2020 at 22:03 UTC. It arrived roughly 1 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 21:58:43 UTC | 2.2ml | 60 km SW of Delta Junction, Alaska 63.712°, -146.707° | 5.7 km | - | - | - | ✓ Reviewed | USGS → |
On August 16, 2020 at 21:58 UTC, a magnitude 2.2 earthquake struck 60 km SW of Delta Junction, Alaska. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 21:40:27 UTC | 2.8md | 5 km SW of Guánica, Puerto Rico 17.941°, -66.951° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake 5 km SW of Guánica, Puerto Rico at 21:40 UTC on August 16, 2020. Coming 1 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 21:36:44 UTC | 2.2ml | 17km W of Searles Valley, CA 35.763°, -117.589° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 17km W of Searles Valley, CA at 21:36 UTC on August 16, 2020. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 21:22:19 UTC | 2.8md | 5 km WSW of Fuig, Puerto Rico 17.967°, -66.963° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 16, 2020 at 21:22 UTC, a magnitude 2.8 earthquake struck 5 km WSW of Fuig, Puerto Rico. 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 M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 21:14:25 UTC | 2.4ml | 32 km WNW of Stanley, Idaho 44.344°, -115.307° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 32 km WNW of Stanley, Idaho on August 16, 2020, with origin time 21:14 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 21:13:25 UTC | 4.9mb | 129 km W of Labasa, Fiji -16.273°, 178.161° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.9 event was detected 129 km W of Labasa, Fiji on August 16, 2020, with origin time 21:13 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 21:11:25 UTC | 2.4ml | 29 km W of Yachats, Oregon 44.357°, -124.464° | 29.1 km | 1 | - | - | ✓ Reviewed | USGS → |
At 21:11 UTC on August 16, 2020, a magnitude 2.4 tremor occurred 29 km W of Yachats, Oregon. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 20:58:24 UTC | 3.3ml | 128 km WSW of Adak, Alaska 51.527°, -178.412° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
August 16, 2020 brought a magnitude 3.3 earthquake 128 km WSW of Adak, Alaska, logged at 20:58 UTC. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 20:48:07 UTC | 3.1ml | 232 km SW of Nikolski, Alaska 51.359°, -171.082° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 232 km SW of Nikolski, Alaska on August 16, 2020, with origin time 20:48 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.8 earthquake that occurred about 1 hours earlier. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 20:23:29 UTC | 2.9ml | 250 km ESE of Atka, Alaska 51.008°, -171.129° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.9 earthquake 250 km ESE of Atka, Alaska with origin time 20:23 UTC on August 16, 2020. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 20:05:50 UTC | 5.8mww | 241 km ESE of Atka, Alaska 51.214°, -171.088° | 18.0 km | 1 | III | green | ✓ Reviewed | USGS → |
On August 16, 2020 at 20:05 UTC, a magnitude 5.8 earthquake struck 241 km ESE of Atka, Alaska. A tsunami evaluation was automatically initiated given the magnitude and location. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 19:52:39 UTC | 4.4mb | south of the Fiji Islands -23.725°, -179.846° | 536.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place south of the Fiji Islands on August 16, 2020 at 19:52 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. | ||||||||
2020-08-16 2020-08-16 19:44:24 UTC | 2.3ml | 3 km W of Minco, Oklahoma 35.309°, -97.988° | 7.7 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 3 km W of Minco, Oklahoma on August 16, 2020 at 19:44 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 19:27:34 UTC | 2.1ml | 14 km NW of Stanley, Idaho 44.297°, -115.087° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 14 km NW of Stanley, Idaho on August 16, 2020 at 19:27 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 13 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 19:19:26 UTC | 2.3ml | 57 km W of Cantwell, Alaska 63.403°, -150.107° | 8.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 57 km W of Cantwell, Alaska with origin time 19:19 UTC on August 16, 2020. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 19:18:00 UTC | 2.2ml | 28 km W of Yachats, Oregon 44.349°, -124.462° | 23.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 28 km W of Yachats, Oregon on August 16, 2020, with origin time 19:18 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 19:06:52 UTC | 4.9mww | 202 km E of Amahai, Indonesia -3.186°, 130.732° | 13.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.9 earthquake 202 km E of Amahai, Indonesia came in on August 16, 2020 at 19:06 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 18:58:54 UTC | 2.8ml | 157 km S of False Pass, Alaska 53.439°, -163.557° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 16, 2020, worldwide seismic activity registered a magnitude 2.8 earthquake 157 km S of False Pass, Alaska at 18:58 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 18:56:30 UTC | 2.9md | 6 km SE of Pa‘auilo, Hawaii 20.002°, -155.317° | 12.5 km | 100 | IV | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.9 earthquake 6 km SE of Pa‘auilo, Hawaii came in on August 16, 2020 at 18:56 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 18:37:15 UTC | 3.4ml | 5 km WNW of Kakanj, Bosnia and Herzegovina 44.158°, 18.058° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.4 seismic event took place 5 km WNW of Kakanj, Bosnia and Herzegovina on August 16, 2020 at 18:37 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 18:07:08 UTC | 4.1mb | south of Tonga -24.309°, -175.325° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake south of Tonga came in on August 16, 2020 at 18:07 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-08-16 2020-08-16 18:04:33 UTC | 2.7md | 7 km SSE of Indios, Puerto Rico 17.925°, -66.804° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 7 km SSE of Indios, Puerto Rico on August 16, 2020 at 18:04 UTC. Coming 7 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.7 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 August 16, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.