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Earthquakes on August 17, 2026

220
EARTHQUAKES on August 17, 2026
24-hour UTC period · USGS data
67 km deep · 1 person felt it
Normal activity
compared to daily average (~250/day)

Magnitude Breakdown

M5.0+
13
M4.0–4.9
57
M3.0–3.9
10
M2.0–2.9
41
M1.0–1.9
99

Activity Summary

220
Total earthquakes
~250
Daily average
Normal
Activity level
13
M5.0+ events

Geographic Breakdown

Earthquake Map — August 17, 2026

Map showing earthquake epicenter at 20.00°, 0.00°

All Earthquakes — August 17, 2026

Showing 30 of 121 (filtered from 220)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
Time Mag Location Depth Felt MMIAlertStatusDetails
2026-08-17
2026-08-17 23:58:55 UTC
2.1md
54 km ENE of Fort Bidwell, California
41.972°, -119.516°
2.5 km---✓ ReviewedUSGS →
A magnitude 2.1 earthquake was recorded 54 km ENE of Fort Bidwell, California on August 17, 2026 at 23:58 UTC. 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.
2026-08-17
2026-08-17 23:01:05 UTC
2.0ml
28 km SSE of Halibut Cove, Alaska
59.381°, -150.949°
34.0 km---✓ ReviewedUSGS →
At 23:01 UTC on August 17, 2026, a magnitude 2.0 tremor occurred 28 km SSE of Halibut Cove, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:53:11 UTC
5.3mww
24 km NE of Colonia, Micronesia
9.660°, 138.289°
10.0 km2--✓ ReviewedUSGS →
At 22:53 UTC on August 17, 2026, a magnitude 5.3 tremor occurred 24 km NE of Colonia, Micronesia. The event was offshore. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:48:40 UTC
4.4mb
33 km NE of Labuan Bajo, Indonesia
-8.246°, 120.062°
10.0 km---✓ ReviewedUSGS →
A magnitude 4.4 earthquake was recorded 33 km NE of Labuan Bajo, Indonesia on August 17, 2026 at 22:48 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:48:22 UTC
4.2mb
86 km N of Labuan Bajo, Indonesia
-7.728°, 120.039°
10.0 km---✓ ReviewedUSGS →
A magnitude 4.2 seismic event took place 86 km N of Labuan Bajo, Indonesia on August 17, 2026 at 22:48 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:39:42 UTC
2.5ml
118 km SE of Akutan, Alaska
53.423°, -164.443°
10.0 km---✓ ReviewedUSGS →
On August 17, 2026 at 22:39 UTC, a magnitude 2.5 earthquake struck 118 km SE of Akutan, Alaska. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:35:16 UTC
3.0ml
11 km WSW of Venetie, Alaska
66.967°, -146.648°
13.0 km---✓ ReviewedUSGS →
Reports of a magnitude 3.0 earthquake 11 km WSW of Venetie, Alaska came in on August 17, 2026 at 22:35 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:19:28 UTC
4.2mb
55 km NW of Ende, Indonesia
-8.460°, 121.338°
10.0 km---✓ ReviewedUSGS →
August 17, 2026 brought a magnitude 4.2 earthquake 55 km NW of Ende, Indonesia, logged at 22:19 UTC. Coming 13 hours after a magnitude 5.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:16:08 UTC
2.4ml
7 km ESE of Palomar Observatory, CA
33.325°, -116.799°
16.0 km9--✓ ReviewedUSGS →
The USGS recorded this magnitude 2.4 earthquake 7 km ESE of Palomar Observatory, CA at 22:16 UTC on August 17, 2026. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:13:09 UTC
3.0ml
51 km W of Petrolia, CA
40.340°, -124.887°
14.9 km---✓ ReviewedUSGS →
A magnitude 3.0 seismic event took place 51 km W of Petrolia, CA on August 17, 2026 at 22:13 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:01:56 UTC
2.2ml
73 km SE of Adak, Alaska
51.334°, -176.031°
32.0 km---✓ ReviewedUSGS →
This magnitude 2.2 event was detected 73 km SE of Adak, Alaska on August 17, 2026, with origin time 22:01 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 22:00:45 UTC
2.0md
9 km S of Volcano, Hawaii
19.357°, -155.239°
29.1 km---✓ ReviewedUSGS →
On August 17, 2026, worldwide seismic activity registered a magnitude 2.0 earthquake 9 km S of Volcano, Hawaii at 22:00 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 21:36:35 UTC
5.1mb
Kuril Islands
46.451°, 151.483°
85.9 km---✓ ReviewedUSGS →
Reports of a magnitude 5.1 earthquake near Kuril Islands came in on August 17, 2026 at 21:36 UTC. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 21:16:54 UTC
2.3ml
7 km S of Princeton, Canada
49.388°, -120.493°
-0.4 km---✓ ReviewedUSGS →
August 17, 2026 brought a magnitude 2.3 earthquake 7 km S of Princeton, Canada, logged at 21:16 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 21:04:57 UTC
4.5mb
58 km NNE of Labuan Bajo, Indonesia
-8.033°, 120.138°
10.0 km---✓ ReviewedUSGS →
A magnitude 4.5 earthquake was recorded 58 km NNE of Labuan Bajo, Indonesia on August 17, 2026 at 21:04 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.6 earthquake that occurred about 15 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 21:00:07 UTC
2.3md
9 km ESE of Princeton, Idaho
46.868°, -116.722°
-0.8 km---✓ ReviewedUSGS →
On August 17, 2026 at 21:00 UTC, a magnitude 2.3 earthquake struck 9 km ESE of Princeton, Idaho. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 20:40:13 UTC
2.4md
3 km S of Cabo Rojo, Puerto Rico
18.058°, -67.148°
6.1 km---✓ ReviewedUSGS →
A magnitude 2.4 seismic event took place 3 km S of Cabo Rojo, Puerto Rico on August 17, 2026 at 20:40 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 20:35:10 UTC
4.5ml
41 km SW of Karluk, Alaska
57.279°, -154.894°
57.9 km6III-✓ ReviewedUSGS →
Seismographs logged a magnitude 4.5 earthquake 41 km SW of Karluk, Alaska with origin time 20:35 UTC on August 17, 2026. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 20:20:26 UTC
4.6mb
South Atlantic Ocean
-22.564°, -20.295°
10.0 km---✓ ReviewedUSGS →
At 20:20 UTC on August 17, 2026, a magnitude 4.6 tremor occurred near South Atlantic Ocean. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 19:51:23 UTC
4.9mww
214 km WSW of Longyearbyen, Svalbard and Jan Mayen
77.547°, 7.082°
10.0 km1--✓ ReviewedUSGS →
On August 17, 2026, worldwide seismic activity registered a magnitude 4.9 earthquake 214 km WSW of Longyearbyen, Svalbard and Jan Mayen at 19:51 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 19:44:20 UTC
2.8ml
15 km W of Pueblitos, New Mexico
34.630°, -106.946°
5.0 km---✓ ReviewedUSGS →
A magnitude 2.8 earthquake was recorded 15 km W of Pueblitos, New Mexico on August 17, 2026 at 19:44 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 19:31:37 UTC
2.4ml
115 km ESE of McCarthy, Alaska
61.096°, -140.895°
5.0 km---✓ ReviewedUSGS →
This magnitude 2.4 event was detected 115 km ESE of McCarthy, Alaska on August 17, 2026, with origin time 19:31 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 19:30:55 UTC
2.3ml
114 km ESE of McCarthy, Alaska
61.123°, -140.883°
5.0 km---✓ ReviewedUSGS →
A magnitude 2.3 earthquake was recorded 114 km ESE of McCarthy, Alaska on August 17, 2026 at 19:30 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 19:24:08 UTC
4.1ml
16 km SSE of Honaunau-Napoopoo, Hawaii
19.315°, -155.827°
23.0 km116IIIgreen✓ ReviewedUSGS →
August 17, 2026 brought a magnitude 4.1 earthquake 16 km SSE of Honaunau-Napoopoo, Hawaii, logged at 19:24 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 18:52:05 UTC
2.5md
28 km SE of Bodie, CA
38.022°, -118.802°
12.8 km---✓ ReviewedUSGS →
On August 17, 2026, worldwide seismic activity registered a magnitude 2.5 earthquake 28 km SE of Bodie, CA at 18:52 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 18:51:11 UTC
4.9mww
30 km NE of Colonia, Micronesia
9.697°, 138.335°
10.0 km2--✓ ReviewedUSGS →
At 18:51 UTC on August 17, 2026, a magnitude 4.9 tremor occurred 30 km NE of Colonia, Micronesia. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 18:33:59 UTC
2.8ml
5 km NNW of Diamond Ridge, Alaska
59.716°, -151.609°
59.3 km---✓ ReviewedUSGS →
Seismographs logged a magnitude 2.8 earthquake 5 km NNW of Diamond Ridge, Alaska with origin time 18:33 UTC on August 17, 2026. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 18:19:45 UTC
4.3mb
76 km W of Sinabang, Indonesia
2.509°, 95.693°
10.0 km---✓ ReviewedUSGS →
August 17, 2026 brought a magnitude 4.3 earthquake 76 km W of Sinabang, Indonesia, logged at 18:19 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 18:17:30 UTC
2.0ml
24 km SSW of Westbrook, Texas
32.141°, -101.094°
7.2 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.0 earthquake 24 km SSW of Westbrook, Texas at 18:17 UTC on August 17, 2026. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-08-17
2026-08-17 18:10:05 UTC
4.6mb
156 km NNW of Pototano, Indonesia
-7.029°, 117.182°
492.2 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.6 earthquake 156 km NNW of Pototano, Indonesia at 18:10 UTC on August 17, 2026. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.6 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 17, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.