Earthquakes on August 20, 2024
500
EARTHQUAKES on August 20, 2024
24-hour UTC period · USGS data
LARGEST: M5.1 — 72 km NE of Shikotan, Russia
92 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
33
M3.0–3.9
16
M2.0–2.9
136
M1.0–1.9
312
Activity Summary
500
Total earthquakes
~250
Daily average
Elevated
Activity level
3
M5.0+ events
Significant Earthquakes (M4.5+)
5.1
72 km NE of Shikotan, Russia
08:24 UTC · 91.6 km deep
5.1
8 km SW of Bāramūla, India
01:15 UTC · 14.1 km deep
Felt by 10
5.0
114 km SSE of Kirakira, Solomon Islands
15:10 UTC · 10.0 km deep
4.9
43 km W of Finschhafen, Papua New Guinea
21:09 UTC · 76.8 km deep
Felt by 1
4.8
49 km SW of La Libertad, El Salvador
07:34 UTC · 52.4 km deep
Felt by 1
4.7
15 km ESE of Simao, China
15:04 UTC · 13.2 km deep
4.7
180 km SSW of ‘Ohonua, Tonga
13:57 UTC · 38.7 km deep
4.7
142 km NNW of Houma, Tonga
11:32 UTC · 199.5 km deep
Earthquake Map — August 20, 2024
All Earthquakes — August 20, 2024
Showing 30 of 188 (filtered from 500)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2024-08-20 2024-08-20 23:55:53 UTC | 4.3mb | 31 km SW of Cabeza de Toro, Mexico 15.713°, -93.964° | 80.8 km | - | - | - | ✓ Reviewed | USGS → |
August 20, 2024 brought a magnitude 4.3 earthquake 31 km SW of Cabeza de Toro, Mexico, logged at 23:55 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 23:38:56 UTC | 2.8ml | 6 km S of Volcano, Hawaii 19.385°, -155.242° | 1.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 seismic event took place 6 km S of Volcano, Hawaii on August 20, 2024 at 23:38 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 4 hours earlier. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 23:13:52 UTC | 2.2ml | 7 km S of Volcano, Hawaii 19.375°, -155.243° | 0.3 km | - | - | - | Auto | USGS → |
On August 20, 2024 at 23:13 UTC, a magnitude 2.2 earthquake struck 7 km S of Volcano, Hawaii. Coming 4 hours after a magnitude 3.4 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 23:13:52 UTC | 2.1ml | 8 km S of Volcano, Hawaii 19.369°, -155.237° | 0.2 km | - | - | - | ✓ Reviewed | USGS → |
On August 20, 2024 at 23:13 UTC, a magnitude 2.1 earthquake struck 8 km S of Volcano, Hawaii. It arrived roughly 4 hours after a larger magnitude 3.4 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 23:12:05 UTC | 4.2mb | 166 km ESE of Petropavlovsk-Kamchatsky, Russia 52.470°, 160.891° | 33.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 166 km ESE of Petropavlovsk-Kamchatsky, Russia came in on August 20, 2024 at 23:12 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 22:40:04 UTC | 2.3md | 19 km E of Naalehu, Hawaii 19.039°, -155.400° | 34.1 km | - | - | - | Auto | USGS → |
August 20, 2024 brought a magnitude 2.3 earthquake 19 km E of Naalehu, Hawaii, logged at 22:40 UTC. Coming 8 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 22:31:21 UTC | 2.9ml | 50 km NNE of Adak, Alaska 52.302°, -176.405° | 267.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.9 earthquake 50 km NNE of Adak, Alaska at 22:31 UTC on August 20, 2024. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 22:07:43 UTC | 2.3md | 4 km W of Tahoe Vista, CA 39.230°, -120.095° | 3.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 4 km W of Tahoe Vista, CA came in on August 20, 2024 at 22:07 UTC. Coming 3 hours after a magnitude 2.4 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 21:49:07 UTC | 3.0md | 6 km SE of La Parguera, Puerto Rico 17.939°, -66.997° | 13.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.0 earthquake 6 km SE of La Parguera, Puerto Rico came in on August 20, 2024 at 21:49 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 21:43:22 UTC | 2.5ml | 6 km S of Volcano, Hawaii 19.384°, -155.243° | 1.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 6 km S of Volcano, Hawaii came in on August 20, 2024 at 21:43 UTC. It arrived roughly 2 hours after a larger magnitude 3.4 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 M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 21:28:57 UTC | 3.0ml | 103 km NNE of Hobart Bay, Alaska 58.264°, -132.456° | 4.3 km | - | - | - | ✓ Reviewed | USGS → |
August 20, 2024 brought a magnitude 3.0 earthquake 103 km NNE of Hobart Bay, Alaska, logged at 21:28 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 21:14:12 UTC | 2.2ml | 5 km SSW of Volcano, Hawaii 19.393°, -155.253° | 1.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 5 km SSW of Volcano, Hawaii came in on August 20, 2024 at 21:14 UTC. Coming 2 hours after a magnitude 3.4 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 21:13:42 UTC | 2.6md | 16 km SW of Walker, CA 38.383°, -119.566° | 5.6 km | 4 | - | - | ✓ Reviewed | USGS → |
August 20, 2024 brought a magnitude 2.6 earthquake 16 km SW of Walker, CA, logged at 21:13 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 21:09:10 UTC | 4.9mb | 43 km W of Finschhafen, Papua New Guinea -6.601°, 147.458° | 76.8 km | 1 | - | - | ✓ Reviewed | USGS → |
On August 20, 2024, worldwide seismic activity registered a magnitude 4.9 earthquake 43 km W of Finschhafen, Papua New Guinea at 21:09 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 20:59:30 UTC | 2.7ml | 63 km SSE of Adak, Alaska 51.400°, -176.132° | 42.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 63 km SSE of Adak, Alaska on August 20, 2024, with origin time 20:59 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 20:44:02 UTC | 2.1md | 5 km SSW of Volcano, Hawaii 19.393°, -155.257° | 0.5 km | - | - | - | Auto | USGS → |
August 20, 2024 brought a magnitude 2.1 earthquake 5 km SSW of Volcano, Hawaii, logged at 20:44 UTC. It arrived roughly 5 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 20:10:08 UTC | 4.2mb | Mariana Islands region 21.644°, 142.984° | 318.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place in the Mariana Islands region on August 20, 2024 at 20:10 UTC. 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. | ||||||||
2024-08-20 2024-08-20 19:50:12 UTC | 2.1ml | 4 km S of Long Beach, CA 33.764°, -118.155° | 10.3 km | 91 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 4 km S of Long Beach, CA came in on August 20, 2024 at 19:50 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 19:37:07 UTC | 2.2ml | 23 km E of Little Lake, CA 35.969°, -117.656° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 23 km E of Little Lake, CA at 19:37 UTC on August 20, 2024. 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. | ||||||||
2024-08-20 2024-08-20 19:22:25 UTC | 3.4ml | 6 km S of Volcano, Hawaii 19.381°, -155.245° | 0.3 km | 15 | IV | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.4 earthquake 6 km S of Volcano, Hawaii with origin time 19:22 UTC on August 20, 2024. In the 72 hours after this event, the USGS recorded 19 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 19:17:07 UTC | 2.5ml | 54 km SSE of False Pass, Alaska 54.395°, -163.107° | 66.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 54 km SSE of False Pass, Alaska with origin time 19:17 UTC on August 20, 2024. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 19:16:49 UTC | 2.4md | 4 km W of Tahoe Vista, CA 39.228°, -120.095° | 3.7 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 4 km W of Tahoe Vista, CA on August 20, 2024 at 19:16 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. | ||||||||
2024-08-20 2024-08-20 19:03:52 UTC | 2.3ml | 6 km S of Volcano, Hawaii 19.383°, -155.243° | 1.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 6 km S of Volcano, Hawaii with origin time 19:03 UTC on August 20, 2024. This event falls inside the aftershock decay of a nearby magnitude 3.3 earthquake that occurred about 6 hours earlier. 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. | ||||||||
2024-08-20 2024-08-20 18:59:13 UTC | 2.3ml | 6 km S of Volcano, Hawaii 19.381°, -155.240° | 1.9 km | - | - | - | ✓ Reviewed | USGS → |
On August 20, 2024 at 18:59 UTC, a magnitude 2.3 earthquake struck 6 km S of Volcano, Hawaii. It arrived roughly 5 hours after a larger magnitude 3.3 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 18:53:10 UTC | 4.2mwr | 32 km NE of Hualien City, Taiwan 24.156°, 121.859° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
August 20, 2024 brought a magnitude 4.2 earthquake 32 km NE of Hualien City, Taiwan, logged at 18:53 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 18:37:55 UTC | 4.6mb | south of the Kermadec Islands -32.796°, -178.504° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place south of the Kermadec Islands on August 20, 2024 at 18:37 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 18:32:03 UTC | 2.7ml | 7 km S of Volcano, Hawaii 19.379°, -155.240° | 0.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.7 earthquake 7 km S of Volcano, Hawaii at 18:32 UTC on August 20, 2024. Coming 5 hours after a magnitude 3.3 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 M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 18:22:31 UTC | 2.0md | 6 km WSW of Antioch, CA 37.980°, -121.862° | 19.2 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 6 km WSW of Antioch, CA on August 20, 2024, with origin time 18:22 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 18:00:52 UTC | 2.6md | 88 km W of Point Sur, CA 36.117°, -122.856° | 25.8 km | - | - | - | ✓ Reviewed | USGS → |
At 18:00 UTC on August 20, 2024, a magnitude 2.6 tremor occurred 88 km W of Point Sur, CA. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-08-20 2024-08-20 17:50:08 UTC | 3.3ml | 48 km ESE of Mud Bay, Alaska 59.029°, -134.564° | 2.0 km | 5 | III | - | ✓ Reviewed | USGS → |
On August 20, 2024, worldwide seismic activity registered a magnitude 3.3 earthquake 48 km ESE of Mud Bay, Alaska at 17:50 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.3 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 20, 2024. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.