Earthquake · reviewed by a seismologist
M 1.5md
5km WSW of Lexington Hills, CA
- When
- Magnitude
- M 1.5 (md)
- Depth
- 13 km below the surface
- Felt
- no reports yet
- Nearest
- Santa Cruz County, 16 km S
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1962 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
- Around the size people start to feel M 3.0 160× the energy of this one
- This earthquake M 1.5 about 5.9 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.
Where
Epicentre 37.1522, -122.0228. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Santa Cruz County, CA | 16 km (10 mi) | N of here | earthquakes near Santa Cruz County |
| Santa Clara County, CA | 31 km (19 mi) | WSW of here | earthquakes near Santa Clara County |
| San Mateo County, CA | 42 km (26 mi) | SE of here | earthquakes near San Mateo County |
| Alameda County, CA | 56 km (35 mi) | S of here | earthquakes near Alameda County |
| Contra Costa County, CA | 86 km (53 mi) | S of here | earthquakes near Contra Costa County |
| Stanislaus County, CA | 101 km (63 mi) | WSW of here | earthquakes near Stanislaus County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
47 earthquakes have been recorded within 50 km since this one.
- 2.2 2km E of Saratoga, CA
- 2.2 9km NE of Gilroy, CA
- 1.9 11km NE of Milpitas, CA
- 2.2 9km ENE of San Martin, CA
- 2.9 15km E of Seven Trees, CA
- 1.5 6km SW of Gilroy, CA
- 2.0 8km ENE of Interlaken, CA
- 2.3 2km E of Aromas, CA
- 1.8 5km E of Fremont, CA
- 1.6 3km E of Aromas, CA
- 1.6 13km N of Morgan Hill, CA
- 1.8 2km ENE of Aromas, CA
- 1.8 8km SW of Loyola, CA
- 1.7 9km NNE of Alum Rock, CA
- 2.0 9km NE of Milpitas, CA
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.
For this area
The largest earthquake within 50 km in our catalogue was M 4.2 on 2021-01-17 — it released about 10,000 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
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.