Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2021-07-08 2021-07-08 23:58:53 UTC	4.2mw	29km SE of Markleeville, CA 38.537°, -119.524°	5.8 km	93	IV	green	✓ Reviewed	USGS →
Reports of a magnitude 4.2 earthquake 29km SE of Markleeville, CA came in on July 8, 2021 at 23:58 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.0 earthquake that occurred about 1 hours earlier. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:57:25 UTC	2.8md	32km SE of Markleeville, CA 38.506°, -119.519°	4.5 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.8 earthquake 32km SE of Markleeville, CA with origin time 23:57 UTC on July 8, 2021. Coming 1 hours after a magnitude 6.0 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 M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:56:39 UTC	2.4md	29km SE of Markleeville, CA 38.541°, -119.527°	3.8 km	-	-	-	✓ Reviewed	USGS →
On July 8, 2021 at 23:56 UTC, a magnitude 2.4 earthquake struck 29km SE of Markleeville, CA. It arrived roughly 1 hours after a larger magnitude 6.0 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 M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:54:12 UTC	2.5md	32km ENE of Dardanelle, CA 38.476°, -119.513°	4.5 km	2	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.5 earthquake 32km ENE of Dardanelle, CA came in on July 8, 2021 at 23:54 UTC. Coming 1 hours after a magnitude 6.0 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 M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:53:10 UTC	4.7mb	New Britain region, Papua New Guinea -5.035°, 150.393°	298.3 km	-	-	-	✓ Reviewed	USGS →
At 23:53 UTC on July 8, 2021, a magnitude 4.7 tremor occurred in the New Britain region, Papua New Guinea. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:52:40 UTC	2.2md	34km ENE of Dardanelle, CA 38.489°, -119.494°	7.8 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.2 earthquake 34km ENE of Dardanelle, CA at 23:52 UTC on July 8, 2021. It arrived roughly 1 hours after a larger magnitude 6.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:52:18 UTC	2.6md	31km ENE of Dardanelle, CA 38.484°, -119.526°	3.9 km	-	-	-	✓ Reviewed	USGS →
July 8, 2021 brought a magnitude 2.6 earthquake 31km ENE of Dardanelle, CA, logged at 23:52 UTC. It arrived roughly 1 hours after a larger magnitude 6.0 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 M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:49:42 UTC	2.5ml	5 km W of Walker, California 38.512°, -119.545°	6.5 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.5 seismic event took place 5 km W of Walker, California on July 8, 2021 at 23:49 UTC. It arrived roughly 1 hours after a larger magnitude 6.0 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.
2021-07-08 2021-07-08 23:47:43 UTC	3.8ml	28km SE of Markleeville, CA 38.536°, -119.534°	4.5 km	49	III	-	✓ Reviewed	USGS →
A magnitude 3.8 seismic event took place 28km SE of Markleeville, CA on July 8, 2021 at 23:47 UTC. It arrived roughly 1 hours after a larger magnitude 6.0 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 M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:46:45 UTC	2.7md	29km ENE of Dardanelle, CA 38.477°, -119.544°	-0.7 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.7 event was detected 29km ENE of Dardanelle, CA on July 8, 2021, with origin time 23:46 UTC. It arrived roughly 1 hours after a larger magnitude 6.0 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 M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:44:41 UTC	3.5ml	28km ESE of Markleeville, CA 38.553°, -119.522°	4.4 km	1	III	-	✓ Reviewed	USGS →
A magnitude 3.5 earthquake was recorded 28km ESE of Markleeville, CA on July 8, 2021 at 23:44 UTC. It arrived roughly 1 hours after a larger magnitude 6.0 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 M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:43:57 UTC	2.8md	31km ENE of Dardanelle, CA 38.477°, -119.525°	2.9 km	-	-	-	✓ Reviewed	USGS →
At 23:43 UTC on July 8, 2021, a magnitude 2.8 tremor occurred 31km ENE of Dardanelle, CA. It arrived roughly 1 hours after a larger magnitude 6.0 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 M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:42:51 UTC	4.4mb	91 km W of Vallenar, Chile -28.734°, -71.678°	10.0 km	-	-	-	✓ Reviewed	USGS →
On July 8, 2021, worldwide seismic activity registered a magnitude 4.4 earthquake 91 km W of Vallenar, Chile at 23:42 UTC. Coming 3 hours after a magnitude 5.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:41:03 UTC	2.8md	30km ENE of Dardanelle, CA 38.470°, -119.525°	2.7 km	2	-	-	✓ Reviewed	USGS →
On July 8, 2021, worldwide seismic activity registered a magnitude 2.8 earthquake 30km ENE of Dardanelle, CA at 23:41 UTC. It arrived roughly 1 hours after a larger magnitude 6.0 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 M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:40:15 UTC	2.3md	29km SE of Markleeville, CA 38.514°, -119.548°	3.0 km	1	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.3 earthquake 29km SE of Markleeville, CA with origin time 23:40 UTC on July 8, 2021. It arrived roughly 1 hours after a larger magnitude 6.0 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.
2021-07-08 2021-07-08 23:38:38 UTC	2.7ml	31km ENE of Dardanelle, CA 38.483°, -119.529°	2.6 km	-	-	-	✓ Reviewed	USGS →
At 23:38 UTC on July 8, 2021, a magnitude 2.7 tremor occurred 31km ENE of Dardanelle, CA. This event falls inside the aftershock decay of a nearby magnitude 6.0 earthquake that occurred about 1 hours earlier. 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.
2021-07-08 2021-07-08 23:36:20 UTC	2.8ml	30km SE of Markleeville, CA 38.523°, -119.531°	4.7 km	1	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.8 earthquake 30km SE of Markleeville, CA at 23:36 UTC on July 8, 2021. This event falls inside the aftershock decay of a nearby magnitude 6.0 earthquake that occurred about 1 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.
2021-07-08 2021-07-08 23:35:26 UTC	2.9md	30km NE of Dardanelle, CA 38.497°, -119.549°	1.2 km	-	-	-	✓ Reviewed	USGS →
On July 8, 2021, worldwide seismic activity registered a magnitude 2.9 earthquake 30km NE of Dardanelle, CA at 23:35 UTC. Coming 1 hours after a magnitude 6.0 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 M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:34:22 UTC	4.1mb	94 km NNE of Tayu, Indonesia -5.755°, 111.383°	513.5 km	-	-	-	✓ Reviewed	USGS →
On July 8, 2021 at 23:34 UTC, a magnitude 4.1 earthquake struck 94 km NNE of Tayu, Indonesia. 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.
2021-07-08 2021-07-08 23:33:40 UTC	4.6mw	29km ENE of Dardanelle, CA 38.480°, -119.545°	1.6 km	322	V	green	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.6 earthquake 29km ENE of Dardanelle, CA at 23:33 UTC on July 8, 2021. It arrived roughly 1 hours after a larger magnitude 6.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:29:35 UTC	2.4ml	31km ENE of Dardanelle, CA 38.492°, -119.532°	5.8 km	-	-	-	✓ Reviewed	USGS →
On July 8, 2021, worldwide seismic activity registered a magnitude 2.4 earthquake 31km ENE of Dardanelle, CA at 23:29 UTC. Coming 1 hours after a magnitude 6.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:29:06 UTC	2.4md	32km SE of Markleeville, CA 38.501°, -119.523°	4.2 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.4 earthquake was recorded 32km SE of Markleeville, CA on July 8, 2021 at 23:29 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.0 earthquake that occurred about 1 hours earlier. 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.
2021-07-08 2021-07-08 23:28:30 UTC	2.6md	30km ENE of Dardanelle, CA 38.476°, -119.534°	2.4 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.6 seismic event took place 30km ENE of Dardanelle, CA on July 8, 2021 at 23:28 UTC. Coming 1 hours after a magnitude 6.0 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 M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:28:17 UTC	4.3mb	101 km SSE of Alo, Wallis and Futuna -15.112°, -177.657°	396.9 km	-	-	-	✓ Reviewed	USGS →
On July 8, 2021, worldwide seismic activity registered a magnitude 4.3 earthquake 101 km SSE of Alo, Wallis and Futuna at 23:28 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:25:14 UTC	3.0ml	29km ESE of Markleeville, CA 38.544°, -119.518°	5.5 km	1	-	-	✓ Reviewed	USGS →
This magnitude 3.0 event was detected 29km ESE of Markleeville, CA on July 8, 2021, with origin time 23:25 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.0 earthquake that occurred about 1 hours earlier. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:24:20 UTC	2.4ml	30km ENE of Dardanelle, CA 38.483°, -119.537°	3.3 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.4 earthquake 30km ENE of Dardanelle, CA with origin time 23:24 UTC on July 8, 2021. Coming 1 hours after a magnitude 6.0 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 M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:22:18 UTC	2.9ml	30km SE of Markleeville, CA 38.522°, -119.518°	6.2 km	-	-	-	✓ Reviewed	USGS →
On July 8, 2021 at 23:22 UTC, a magnitude 2.9 earthquake struck 30km SE of Markleeville, CA. Coming 1 hours after a magnitude 6.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:22:09 UTC	3.0ml	30km SE of Markleeville, CA 38.518°, -119.529°	4.3 km	45	-	-	✓ Reviewed	USGS →
A magnitude 3.0 earthquake was recorded 30km SE of Markleeville, CA on July 8, 2021 at 23:22 UTC. Coming 1 hours after a magnitude 6.0 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 M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:21:45 UTC	3.0ml	32km ENE of Dardanelle, CA 38.494°, -119.518°	8.7 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 3.0 earthquake 32km ENE of Dardanelle, CA with origin time 23:21 UTC on July 8, 2021. It arrived roughly 1 hours after a larger magnitude 6.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2021-07-08 2021-07-08 23:21:07 UTC	2.0ml	9 km ENE of Coleville, California 38.585°, -119.397°	0.0 km	-	-	-	Auto	USGS →
Seismographs logged a magnitude 2.0 earthquake 9 km ENE of Coleville, California with origin time 23:21 UTC on July 8, 2021. Coming 1 hours after a magnitude 6.0 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.

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 8, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.

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