Earthquake · reviewed by a seismologist
M 1.6md
Earthquake near San Jose, CA
Yes. A magnitude 1.6 earthquake was recorded 30 km (18 mi) SSW of San Jose, CA, at 5:48 am PDT on 10 August 2016 (12:48 UTC), 11 km deep. 2 people have reported feeling it to USGS.
This was on 10 August 2016. The latest near San Jose: M 2.6 on 27 September 2026.
USGS: 3 km E of Zayante, California
29 km (18 mi) SW of San Jose, CA · 13 km (8 mi) N of Santa Cruz, CA
- When
- 5:48 am PDT on 10 August 2016 ()
- Where
- 30 km (18 mi) SSW of San Jose, CA · earthquakes near San Jose
- Magnitude
- M 1.6 (md)
- Depth
- 11 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Santa Cruz County, 8 km S
- Nearest mapped fault
- Zayante-Vergeles fault, 2 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3532 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 2 km (1 mi) from the epicentre. In San Jose, 30 km away, the estimate is intensity I (not felt). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Earthquakes near other towns within 30 km: Scotts Valley, Lompico, Mount Hermon, Ben Lomond, Felton, Brookdale.
How big was it?
This earthquake released about 6.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
- Around the size people start to feel M 3.0 140× the energy of this one
- This earthquake M 1.6 about 6.6 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists 27 earthquakes of M5 or more within 50 km; the five largest:
- 6.9 The 1989 Loma Prieta, California Earthquake · 13 km ESE of this epicentre
- 6.5 Near Morgan Hill, California · 33 km E of this epicentre
- 6.3 22 km S of Davenport, California · 36 km SSW of this epicentre
- 6.3 16 km SW of Davenport, California · 35 km WSW of this epicentre
- 6.2 Near San Jose, California · 30 km NE of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 37.0873, -122.0080. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Santa Cruz County, CA | 8 km (5 mi) | S | earthquakes near Santa Cruz County |
| Santa Clara County, CA | 32 km (20 mi) | ENE | earthquakes near Santa Clara County |
| San Mateo County, CA | 49 km (30 mi) | NW | earthquakes near San Mateo County |
| Alameda County, CA | 63 km (39 mi) | N | earthquakes near Alameda County |
| Contra Costa County, CA | 93 km (58 mi) | N | earthquakes near Contra Costa County |
| San Benito County, CA | 98 km (61 mi) | ESE | earthquakes near San Benito County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.9 14 km E of Seven Trees, California
- 1.5 3 km S of Loyola, California
- 2.0 11 km S of Half Moon Bay, California
- 1.7 3 km SSE of Portola Valley, California
- 2.1 3 km SSE of Portola Valley, California
- 1.9 7 km WSW of Gilroy, California
- 2.2 14 km N of Morgan Hill, California
- 2.0 3 km S of Loyola, California
- 1.6 11 km W of Saratoga, California
- 1.7 7 km SSE of Pescadero, California
- 1.7 7 km SW of Gilroy, California
- 1.6 9 km NNE of East Foothills, California
- 1.6 3 km S of Loyola, California
- 1.5 1 km ENE of Aromas, California
- 2.6 5 km WNW of San Juan Bautista, California
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.