Earthquakes on July 15, 2021
411
EARTHQUAKES on July 15, 2021
24-hour UTC period · USGS data
LARGEST: M4.8 — Kermadec Islands, New Zealand
258 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
0
M4.0–4.9
23
M3.0–3.9
7
M2.0–2.9
67
M1.0–1.9
314
Activity Summary
411
Total earthquakes
~250
Daily average
Elevated
Activity level
0
M5.0+ events
Significant Earthquakes (M4.5+)
4.8
Kermadec Islands, New Zealand
05:44 UTC · 257.7 km deep
4.8
South Sandwich Islands region
01:58 UTC · 10.0 km deep
4.6
9 km ESE of Hualien City, Taiwan
23:29 UTC · 10.0 km deep
Felt by 1
4.6
63 km S of Sola, Vanuatu
13:00 UTC · 187.6 km deep
4.6
143 km E of Miyako, Japan
11:12 UTC · 11.7 km deep
4.6
Kepulauan Barat Daya, Indonesia
03:44 UTC · 150.5 km deep
4.5
177 km NW of Tobelo, Indonesia
13:00 UTC · 58.0 km deep
Earthquake Map — July 15, 2021
All Earthquakes — July 15, 2021
Showing 30 of 97 (filtered from 411)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-07-15 2021-07-15 23:58:04 UTC | 2.5ml | 58 km N of Tonopah, Nevada 38.594°, -117.248° | 5.8 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.5 earthquake 58 km N of Tonopah, Nevada came in on July 15, 2021 at 23:58 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 23:29:26 UTC | 4.6mwr | 9 km ESE of Hualien City, Taiwan 23.932°, 121.681° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake 9 km ESE of Hualien City, Taiwan with origin time 23:29 UTC on July 15, 2021. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 23:05:03 UTC | 4.2mwr | 10 km SE of Hualien City, Taiwan 23.901°, 121.671° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 10 km SE of Hualien City, Taiwan at 23:05 UTC on July 15, 2021. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 22:47:09 UTC | 3.1ml | 31 km E of Atka, Alaska 52.226°, -173.746° | 13.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 seismic event took place 31 km E of Atka, Alaska on July 15, 2021 at 22:47 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 22:19:48 UTC | 2.5ml | 95 km WSW of Craig, Alaska 55.058°, -134.459° | 17.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 seismic event took place 95 km WSW of Craig, Alaska on July 15, 2021 at 22:19 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 21:42:01 UTC | 2.0md | 63 km ESE of West Yellowstone, Montana 44.452°, -110.356° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 63 km ESE of West Yellowstone, Montana with origin time 21:42 UTC on July 15, 2021. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 21:26:59 UTC | 4.3mb | 138 km W of Ternate, Indonesia 0.920°, 126.149° | 26.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 138 km W of Ternate, Indonesia on July 15, 2021 at 21:26 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 21:14:56 UTC | 2.5ml | 57 km NW of Carlin, Nevada 41.126°, -116.525° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
July 15, 2021 brought a magnitude 2.5 earthquake 57 km NW of Carlin, Nevada, logged at 21:14 UTC. 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. | ||||||||
2021-07-15 2021-07-15 20:58:50 UTC | 3.0ml | 37 km WNW of Petersville, Alaska 62.619°, -151.443° | 8.5 km | - | - | - | ✓ Reviewed | USGS → |
July 15, 2021 brought a magnitude 3.0 earthquake 37 km WNW of Petersville, Alaska, logged at 20:58 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 20:58:37 UTC | 2.2ml | 8km W of Holtville, CA 32.819°, -115.463° | 8.7 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 8km W of Holtville, CA with origin time 20:58 UTC on July 15, 2021. Coming 1 hours after a magnitude 2.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 20:57:16 UTC | 2.9ml | 8km W of Holtville, CA 32.819°, -115.463° | 8.8 km | 2 | - | - | ✓ Reviewed | USGS → |
At 20:57 UTC on July 15, 2021, a magnitude 2.9 tremor occurred 8km W of Holtville, CA. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 20:54:13 UTC | 2.2ml | 8km WNW of Holtville, CA 32.826°, -115.464° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 8km WNW of Holtville, CA on July 15, 2021 at 20:54 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 20:47:25 UTC | 2.0ml | 10 km S of False Pass, Alaska 54.764°, -163.436° | 96.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 10 km S of False Pass, Alaska on July 15, 2021 at 20:47 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 20:36:17 UTC | 2.3ml | 14 km E of Susitna North, Alaska 62.144°, -149.584° | 29.3 km | - | - | - | ✓ Reviewed | USGS → |
July 15, 2021 brought a magnitude 2.3 earthquake 14 km E of Susitna North, Alaska, logged at 20:36 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 20:26:53 UTC | 2.2md | 28km S of Smith Valley, NV 38.537°, -119.395° | 3.6 km | 2 | - | - | ✓ Reviewed | USGS → |
At 20:26 UTC on July 15, 2021, a magnitude 2.2 tremor occurred 28km S of Smith Valley, NV. This event falls inside the aftershock decay of a nearby magnitude 3.8 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 20:03:11 UTC | 2.0md | Island of Hawaii, Hawaii 19.179°, -155.429° | 36.3 km | - | - | - | Auto | USGS → |
On July 15, 2021, worldwide seismic activity registered a magnitude 2.0 earthquake near Island of Hawaii, Hawaii at 20:03 UTC. Coming 16 hours after a magnitude 2.1 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. | ||||||||
2021-07-15 2021-07-15 19:43:12 UTC | 2.1md | 26km SSW of Smith Valley, NV 38.559°, -119.430° | -1.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 26km SSW of Smith Valley, NV on July 15, 2021 at 19:43 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. | ||||||||
2021-07-15 2021-07-15 19:43:07 UTC | 2.0md | 27km S of Smith Valley, NV 38.543°, -119.391° | 3.1 km | - | - | - | ✓ Reviewed | USGS → |
July 15, 2021 brought a magnitude 2.0 earthquake 27km S of Smith Valley, NV, logged at 19:43 UTC. Coming 5 hours after a magnitude 3.8 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 19:38:58 UTC | 4.3mb | 230 km NNW of Tobelo, Indonesia 3.676°, 127.268° | 40.4 km | - | - | - | ✓ Reviewed | USGS → |
July 15, 2021 brought a magnitude 4.3 earthquake 230 km NNW of Tobelo, Indonesia, logged at 19:38 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 19:10:50 UTC | 4.2mb | 3 km N of Magdug, Philippines 6.576°, 126.095° | 82.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 3 km N of Magdug, Philippines on July 15, 2021, with origin time 19:10 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 19:02:53 UTC | 2.2ml | 49 km E of Savoonga, Alaska 63.762°, -169.491° | 18.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 49 km E of Savoonga, Alaska at 19:02 UTC on July 15, 2021. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 18:55:04 UTC | 2.1ml | Rat Islands, Aleutian Islands, Alaska 51.703°, 178.576° | 68.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake near Rat Islands, Aleutian Islands, Alaska with origin time 18:55 UTC on July 15, 2021. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 18:50:19 UTC | 2.6ml | 55 km S of Whites City, New Mexico 31.680°, -104.404° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
On July 15, 2021 at 18:50 UTC, a magnitude 2.6 earthquake struck 55 km S of Whites City, New Mexico. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 18:49:41 UTC | 2.0ml | 88 km ENE of Ouzinkie, Alaska 58.145°, -151.067° | 45.9 km | - | - | - | ✓ Reviewed | USGS → |
On July 15, 2021 at 18:49 UTC, a magnitude 2.0 earthquake struck 88 km ENE of Ouzinkie, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 18:28:24 UTC | 4.3mb | 11 km S of Santa María Zapotitlán, Mexico 16.026°, -95.856° | 33.5 km | 1 | - | - | ✓ Reviewed | USGS → |
On July 15, 2021 at 18:28 UTC, a magnitude 4.3 earthquake struck 11 km S of Santa María Zapotitlán, Mexico. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 18:02:42 UTC | 2.2md | 33km SE of Markleeville, CA 38.499°, -119.504° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 15, 2021, worldwide seismic activity registered a magnitude 2.2 earthquake 33km SE of Markleeville, CA at 18:02 UTC. It arrived roughly 4 hours after a larger magnitude 3.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 17:51:54 UTC | 2.7md | 33km SE of Markleeville, CA 38.501°, -119.497° | 5.6 km | - | - | - | ✓ Reviewed | USGS → |
July 15, 2021 brought a magnitude 2.7 earthquake 33km SE of Markleeville, CA, logged at 17:51 UTC. It arrived roughly 4 hours after a larger magnitude 3.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 17:51:10 UTC | 3.0md | 33km SE of Markleeville, CA 38.498°, -119.501° | 5.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 earthquake was recorded 33km SE of Markleeville, CA on July 15, 2021 at 17:51 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 4 hours earlier. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 17:35:13 UTC | 3.3ml | 100 km SSE of Sand Point, Alaska 54.521°, -159.832° | 17.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.3 event was detected 100 km SSE of Sand Point, Alaska on July 15, 2021, with origin time 17:35 UTC. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-07-15 2021-07-15 17:08:12 UTC | 2.2md | 30km SE of Markleeville, CA 38.539°, -119.511° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 30km SE of Markleeville, CA came in on July 15, 2021 at 17:08 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 3 hours earlier. The event was offshore. See the M2.2 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 July 15, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.