Earthquakes on August 9, 2023
240
EARTHQUAKES on August 9, 2023
24-hour UTC period · USGS data
LARGEST: M5.8 — 7 km NNE of Tonalá, Mexico
103 km deep · 31 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
27
M3.0–3.9
11
M2.0–2.9
48
M1.0–1.9
151
Activity Summary
240
Total earthquakes
~250
Daily average
Normal
Activity level
3
M5.0+ events
Significant Earthquakes (M4.5+)
5.8
7 km NNE of Tonalá, Mexico
09:33 UTC · 103.0 km deep
Felt by 31
5.7
Guam region
09:20 UTC · 439.0 km deep
Felt by 33
5.3
22 km NE of Pondaguitan, Philippines
00:57 UTC · 62.0 km deep
Felt by 8
4.9
119 km SSW of Sungai Penuh, Indonesia
23:26 UTC · 52.4 km deep
4.9
30 km WNW of Villazón, Bolivia
07:53 UTC · 255.2 km deep
4.8
South Sandwich Islands region
15:24 UTC · 36.7 km deep
4.7
137 km NE of Sarāhan, India
17:44 UTC · 14.3 km deep
Felt by 1
4.6
south of the Fiji Islands
00:29 UTC · 505.8 km deep
Earthquake Map — August 9, 2023
All Earthquakes — August 9, 2023
Showing 30 of 89 (filtered from 240)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-08-09 2023-08-09 23:37:27 UTC | 2.7ml | 293 km ESE of Attu Station, Alaska 52.004°, 177.269° | 143.3 km | - | - | - | ✓ Reviewed | USGS → |
At 23:37 UTC on August 9, 2023, a magnitude 2.7 tremor occurred 293 km ESE of Attu Station, Alaska. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 23:26:01 UTC | 4.9mb | 119 km SSW of Sungai Penuh, Indonesia -3.117°, 101.169° | 52.4 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023, worldwide seismic activity registered a magnitude 4.9 earthquake 119 km SSW of Sungai Penuh, Indonesia at 23:26 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 23:18:35 UTC | 4.5mb | 55 km SW of Sungai Penuh, Indonesia -2.464°, 101.107° | 76.9 km | - | - | - | ✓ Reviewed | USGS → |
August 9, 2023 brought a magnitude 4.5 earthquake 55 km SW of Sungai Penuh, Indonesia, logged at 23:18 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 23:10:16 UTC | 4.4mb | 168 km SSW of Kawalu, Indonesia -8.846°, 107.779° | 25.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 168 km SSW of Kawalu, Indonesia with origin time 23:10 UTC on August 9, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 22:07:06 UTC | 2.2ml | Fox Islands, Aleutian Islands, Alaska 52.413°, -169.743° | 28.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake near Fox Islands, Aleutian Islands, Alaska at 22:07 UTC on August 9, 2023. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 21:58:51 UTC | 2.1ml | western Texas 31.613°, -103.981° | 7.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake near western Texas with origin time 21:58 UTC on August 9, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 21:57:33 UTC | 4.2mb | 16 km N of Masjed Soleymān, Iran 32.087°, 49.323° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On August 9, 2023 at 21:57 UTC, a magnitude 4.2 earthquake struck 16 km N of Masjed Soleymān, Iran. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 21:56:33 UTC | 2.1ml | 2 km W of Rockford Bay, Idaho 47.505°, -116.915° | -0.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 2 km W of Rockford Bay, Idaho on August 9, 2023 at 21:56 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. | ||||||||
2023-08-09 2023-08-09 21:49:41 UTC | 3.3ml | 158 km E of McCarthy, Alaska 61.354°, -139.969° | 8.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 earthquake was recorded 158 km E of McCarthy, Alaska on August 9, 2023 at 21:49 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 21:10:30 UTC | 2.0ml | 9 km S of Princeton, Canada 49.371°, -120.514° | -0.5 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023 at 21:10 UTC, a magnitude 2.0 earthquake struck 9 km S of Princeton, Canada. 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. | ||||||||
2023-08-09 2023-08-09 20:44:29 UTC | 2.4ml | 87 km W of Akhiok, Alaska 56.925°, -155.610° | 1.8 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023, worldwide seismic activity registered a magnitude 2.4 earthquake 87 km W of Akhiok, Alaska at 20:44 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. | ||||||||
2023-08-09 2023-08-09 20:40:51 UTC | 3.2ml | 4 km S of Volcano, Hawaii 19.402°, -155.241° | 2.3 km | 6 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.2 earthquake 4 km S of Volcano, Hawaii with origin time 20:40 UTC on August 9, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 20:31:41 UTC | 2.1ml | 7 km NNE of Perryville, Alaska 55.978°, -159.107° | 73.7 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 7 km NNE of Perryville, Alaska at 20:31 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 20:28:40 UTC | 3.2ml | Southern Yukon Territory, Canada 61.348°, -139.984° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023, worldwide seismic activity registered a magnitude 3.2 earthquake near Southern Yukon Territory, Canada at 20:28 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 20:03:08 UTC | 4.5mb | 76 km W of Las Grullas Margen Derecha, Mexico 25.768°, -110.093° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023 at 20:03 UTC, a magnitude 4.5 earthquake struck 76 km W of Las Grullas Margen Derecha, Mexico. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 19:48:22 UTC | 2.4ml | 24 km WNW of Volcano, Hawaii 19.504°, -155.455° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
At 19:48 UTC on August 9, 2023, a magnitude 2.4 tremor occurred 24 km WNW of Volcano, Hawaii. 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. | ||||||||
2023-08-09 2023-08-09 19:43:15 UTC | 2.3ml | 54 km S of Whites City, New Mexico 31.680°, -104.401° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 54 km S of Whites City, New Mexico came in on August 9, 2023 at 19:43 UTC. It arrived roughly 15 hours after a larger magnitude 2.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 19:23:55 UTC | 3.0ml | 80 km ESE of Akutan, Alaska 53.941°, -164.595° | 66.3 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023 at 19:23 UTC, a magnitude 3.0 earthquake struck 80 km ESE of Akutan, Alaska. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 18:57:07 UTC | 4.4mb | 109 km ESE of Kokopo, Papua New Guinea -4.743°, 153.169° | 63.7 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake 109 km ESE of Kokopo, Papua New Guinea at 18:57 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 17:46:29 UTC | 2.1ml | 124 km S of Unalaska, Alaska 52.763°, -166.714° | 1.4 km | - | - | - | ✓ Reviewed | USGS → |
At 17:46 UTC on August 9, 2023, a magnitude 2.1 tremor occurred 124 km S of Unalaska, Alaska. Coming 17 hours after a magnitude 3.1 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 17:44:20 UTC | 4.7mb | 137 km NE of Sarāhan, India 32.544°, 78.602° | 14.3 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.7 event was detected 137 km NE of Sarāhan, India on August 9, 2023, with origin time 17:44 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 17:26:58 UTC | 2.6md | 7 km SW of La Parguera, Puerto Rico 17.934°, -67.108° | 11.4 km | - | - | - | ✓ Reviewed | USGS → |
On August 9, 2023 at 17:26 UTC, a magnitude 2.6 earthquake struck 7 km SW of La Parguera, Puerto Rico. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 17:01:46 UTC | 4.2mb | 19 km NW of Sincik, Turkey 38.136°, 38.425° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 19 km NW of Sincik, Turkey on August 9, 2023 at 17:01 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 16:20:05 UTC | 4.4mb | D'Entrecasteaux Islands region -9.786°, 154.072° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 16:20 UTC on August 9, 2023, a magnitude 4.4 tremor occurred in the D'Entrecasteaux Islands region. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 16:15:31 UTC | 4.2mb | 170 km N of Gili Trawangan, Indonesia -6.808°, 116.117° | 540.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 170 km N of Gili Trawangan, Indonesia with origin time 16:15 UTC on August 9, 2023. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 16:03:56 UTC | 3.1ml | 232 km SE of Chiniak, Alaska 56.389°, -149.181° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 232 km SE of Chiniak, Alaska at 16:03 UTC on August 9, 2023. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 15:58:14 UTC | 2.3ml | Kenai Peninsula, Alaska 60.300°, -150.966° | 63.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place near Kenai Peninsula, Alaska on August 9, 2023 at 15:58 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 15:24:27 UTC | 4.8mb | South Sandwich Islands region -55.670°, -27.263° | 36.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.8 earthquake in the South Sandwich Islands region at 15:24 UTC on August 9, 2023. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-09 2023-08-09 14:03:31 UTC | 2.1md | 9 km ENE of Pāhala, Hawaii 19.240°, -155.401° | 30.6 km | - | - | - | Auto | USGS → |
A magnitude 2.1 earthquake was recorded 9 km ENE of Pāhala, Hawaii on August 9, 2023 at 14:03 UTC. Coming 3 hours after a magnitude 3.1 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. | ||||||||
2023-08-09 2023-08-09 13:39:54 UTC | 2.0ml | 97 km SSE of Sand Point, Alaska 54.516°, -159.970° | 17.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 97 km SSE of Sand Point, Alaska on August 9, 2023 at 13:39 UTC. See the M2.0 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 9, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.