Earthquakes on August 15, 2024
318
EARTHQUAKES on August 15, 2024
24-hour UTC period · USGS data
14 km deep · 61 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
33
M3.0–3.9
17
M2.0–2.9
50
M1.0–1.9
214
Activity Summary
318
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events
Significant Earthquakes (M4.5+)
6.1
30 km SSE of Hualien City, Taiwan
23:35 UTC · 14.0 km deep
Felt by 61
5.4
46 km SSE of Yilan, Taiwan
09:06 UTC · 11.5 km deep
Felt by 54
5.2
32 km SSE of Lae, Papua New Guinea
13:13 UTC · 10.0 km deep
Felt by 4
5.1
110 km S of Kokopo, Papua New Guinea
12:13 UTC · 35.0 km deep
4.9
south of the Fiji Islands
19:22 UTC · 25.1 km deep
4.7
39 km SE of Hualien City, Taiwan
23:40 UTC · 10.0 km deep
4.6
122 km E of Biak, Indonesia
19:46 UTC · 10.0 km deep
4.6
84 km SE of Pangai, Tonga
16:54 UTC · 27.0 km deep
Earthquake Map — August 15, 2024
All Earthquakes — August 15, 2024
Showing 30 of 104 (filtered from 318)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2024-08-15 2024-08-15 23:59:25 UTC | 3.1ml | 119 km S of Unalaska, Alaska 52.806°, -166.730° | 32.9 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2024 at 23:59 UTC, a magnitude 3.1 earthquake struck 119 km S of Unalaska, Alaska. Coming 2 hours after a magnitude 3.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 23:40:28 UTC | 4.7mb | 39 km SE of Hualien City, Taiwan 23.708°, 121.862° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.7 earthquake 39 km SE of Hualien City, Taiwan at 23:40 UTC on August 15, 2024. Coming 1 hours after a magnitude 6.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 23:37:35 UTC | 2.6ml | 44 km SE of Atka, Alaska 51.928°, -173.726° | 14.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 44 km SE of Atka, Alaska on August 15, 2024, with origin time 23:37 UTC. It arrived roughly 11 hours after a larger magnitude 3.5 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 23:35:53 UTC | 6.1mww | 30 km SSE of Hualien City, Taiwan 23.749°, 121.767° | 14.0 km | 61 | VI | green | ✓ Reviewed | USGS → |
On August 15, 2024 at 23:35 UTC, a magnitude 6.1 earthquake struck 30 km SSE of Hualien City, Taiwan. 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 August 15, 2024. See the M6.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 23:19:00 UTC | 4.0mb | 80 km NNE of Petropavlovsk-Kamchatsky, Russia 53.670°, 159.285° | 132.9 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2024, worldwide seismic activity registered a magnitude 4.0 earthquake 80 km NNE of Petropavlovsk-Kamchatsky, Russia at 23:19 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 23:14:06 UTC | 3.4md | 59 km NNW of San Antonio, Puerto Rico 18.954°, -67.385° | 21.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.4 earthquake 59 km NNW of San Antonio, Puerto Rico at 23:14 UTC on August 15, 2024. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:59:30 UTC | 3.8ml | 28 km SW of Garden City, Texas 31.692°, -101.704° | 8.0 km | 5 | IV | - | ✓ Reviewed | USGS → |
A magnitude 3.8 seismic event took place 28 km SW of Garden City, Texas on August 15, 2024 at 22:59 UTC. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:54:53 UTC | 2.4ml | 35 km SE of Pedro Bay, Alaska 59.608°, -153.591° | 119.9 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2024, worldwide seismic activity registered a magnitude 2.4 earthquake 35 km SE of Pedro Bay, Alaska at 22:54 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:50:43 UTC | 4.1mb | 28 km S of General Mosconi, Argentina -22.851°, -63.768° | 533.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 28 km S of General Mosconi, Argentina on August 15, 2024 at 22:50 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:45:51 UTC | 4.4mb | 29 km SSW of Puerto El Triunfo, El Salvador 13.045°, -88.678° | 75.6 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2024, worldwide seismic activity registered a magnitude 4.4 earthquake 29 km SSW of Puerto El Triunfo, El Salvador at 22:45 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:40:01 UTC | 2.9ml | 120 km S of Unalaska, Alaska 52.801°, -166.749° | 23.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.9 earthquake 120 km S of Unalaska, Alaska at 22:40 UTC on August 15, 2024. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:34:55 UTC | 2.2ml | 10 km SW of Salton City, CA 33.237°, -116.042° | 3.1 km | 1 | - | - | ✓ Reviewed | USGS → |
On August 15, 2024 at 22:34 UTC, a magnitude 2.2 earthquake struck 10 km SW of Salton City, CA. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:32:28 UTC | 2.0ml | 13 km ESE of Pāhala, Hawaii 19.141°, -155.371° | 29.6 km | - | - | - | Auto | USGS → |
A magnitude 2.0 seismic event took place 13 km ESE of Pāhala, Hawaii on August 15, 2024 at 22:32 UTC. Coming 18 hours after a magnitude 2.3 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. | ||||||||
2024-08-15 2024-08-15 22:28:34 UTC | 3.8mb | 122 km S of Unalaska, Alaska 52.779°, -166.709° | 12.6 km | - | I | - | ✓ Reviewed | USGS → |
August 15, 2024 brought a magnitude 3.8 earthquake 122 km S of Unalaska, Alaska, logged at 22:28 UTC. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:10:54 UTC | 4.4mb | Kermadec Islands, New Zealand -30.444°, -178.423° | 41.5 km | - | - | - | ✓ Reviewed | USGS → |
At 22:10 UTC on August 15, 2024, a magnitude 4.4 tremor occurred near Kermadec Islands, New Zealand. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:05:29 UTC | 2.1ml | 53 km NW of Toyah, Texas 31.595°, -104.248° | 6.2 km | - | - | - | ✓ Reviewed | USGS → |
August 15, 2024 brought a magnitude 2.1 earthquake 53 km NW of Toyah, Texas, logged at 22:05 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 22:00:56 UTC | 4.3mb | 225 km E of Levuka, Fiji -17.744°, -178.587° | 591.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 225 km E of Levuka, Fiji on August 15, 2024 at 22:00 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 21:47:10 UTC | 2.0ml | 66 km WSW of Adak, Alaska 51.575°, -177.470° | 40.5 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2024 at 21:47 UTC, a magnitude 2.0 earthquake struck 66 km WSW of Adak, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 21:46:19 UTC | 2.2ml | 8 km S of Fern Forest, Hawaii 19.386°, -155.126° | 2.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 8 km S of Fern Forest, Hawaii came in on August 15, 2024 at 21:46 UTC. It arrived roughly 17 hours after a larger magnitude 3.8 mainshock in the same 20 km area, placing it within the typical aftershock window. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 20:42:21 UTC | 2.3ml | 132 km S of Unalaska, Alaska 52.686°, -166.547° | 25.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 132 km S of Unalaska, Alaska at 20:42 UTC on August 15, 2024. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 20:22:10 UTC | 2.8ml | 29 km WSW of Karluk, Alaska 57.507°, -154.926° | 9.8 km | - | - | - | ✓ Reviewed | USGS → |
August 15, 2024 brought a magnitude 2.8 earthquake 29 km WSW of Karluk, Alaska, logged at 20:22 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 20:06:32 UTC | 2.3ml | 57 km E of Port Alsworth, Alaska 60.166°, -153.285° | 136.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 57 km E of Port Alsworth, Alaska on August 15, 2024, with origin time 20:06 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 19:46:44 UTC | 4.6mb | 122 km E of Biak, Indonesia -1.003°, 137.167° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.6 event was detected 122 km E of Biak, Indonesia on August 15, 2024, with origin time 19:46 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 19:25:56 UTC | 2.1ml | 4 km SSW of Union City, Oklahoma 35.355°, -97.960° | 7.3 km | 2 | - | - | ✓ Reviewed | USGS → |
At 19:25 UTC on August 15, 2024, a magnitude 2.1 tremor occurred 4 km SSW of Union City, Oklahoma. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 19:22:27 UTC | 4.9mb | south of the Fiji Islands -26.577°, -176.617° | 25.1 km | - | - | - | ✓ Reviewed | USGS → |
At 19:22 UTC on August 15, 2024, a magnitude 4.9 tremor occurred south of the Fiji Islands. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 19:20:32 UTC | 2.0md | 6 km SSW of Pāhala, Hawaii 19.153°, -155.502° | 30.6 km | - | - | - | Auto | USGS → |
A magnitude 2.0 earthquake was recorded 6 km SSW of Pāhala, Hawaii on August 15, 2024 at 19:20 UTC. Coming 14 hours after a magnitude 2.3 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. | ||||||||
2024-08-15 2024-08-15 19:10:33 UTC | 2.5ml | 24 km NW of Grapevine, CA 35.105°, -119.096° | 14.6 km | 3 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 24 km NW of Grapevine, CA with origin time 19:10 UTC on August 15, 2024. It arrived roughly 8 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 18:55:57 UTC | 4.4mb | Greenland Sea 74.620°, 9.598° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake near Greenland Sea at 18:55 UTC on August 15, 2024. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 18:50:17 UTC | 4.4mb | South Sandwich Islands region -56.021°, -27.542° | 108.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected in the South Sandwich Islands region on August 15, 2024, with origin time 18:50 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-15 2024-08-15 18:31:28 UTC | 3.0ml | 74 km ESE of Sand Point, Alaska 55.082°, -159.425° | 10.1 km | - | - | - | ✓ Reviewed | USGS → |
On August 15, 2024, worldwide seismic activity registered a magnitude 3.0 earthquake 74 km ESE of Sand Point, Alaska at 18:31 UTC. See the M3.0 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 15, 2024. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.