Earthquake · reviewed by a seismologist
M 1.6md
4km ESE of Interlaken, CA
- When
- Magnitude
- M 1.6 (md)
- Depth
- 11 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Santa Cruz County, 29 km WNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3175 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.
How big was it?
This earthquake released about 6.8 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 2,200,000× 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 6.8 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 36.9348, -121.6908. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Santa Cruz County, CA | 29 km (18 mi) | ESE of here | earthquakes near Santa Cruz County |
| Santa Clara County, CA | 32 km (20 mi) | S of here | earthquakes near Santa Clara County |
| San Benito County, CA | 65 km (40 mi) | NW of here | earthquakes near San Benito County |
| San Mateo County, CA | 81 km (50 mi) | SE of here | earthquakes near San Mateo County |
| Alameda County, CA | 82 km (51 mi) | SSE of here | earthquakes near Alameda County |
| Monterey County, CA | 84 km (52 mi) | NNW of here | earthquakes near Monterey County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
46 earthquakes have been recorded within 50 km since this one.
- 1.9 6km SW of Gilroy, CA
- 2.1 6km WSW of Gilroy, CA
- 2.3 12km SSE of Tres Pinos, CA
- 2.5 10km E of Gilroy, CA
- 1.9 10km E of Gilroy, CA
- 2.6 10km E of Gilroy, CA
- 3.3 10km E of Gilroy, CA
- 1.7 7km SSW of Ridgemark, CA
- 3.4 13km SSE of Tres Pinos, CA
- 2.1 16km SSE of Tres Pinos, CA
- 1.8 14km ESE of Alum Rock, CA
- 2.8 4km ESE of Aromas, CA
- 2.5 4km ESE of Aromas, CA
- 1.8 10km SSW of Tres Pinos, CA
- 1.7 5km SSW of Gilroy, 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 2016-07-19 — it released about 9,400 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.