QuakeIndex

Fault · California

Hartley Springs fault

23 kmlong (14 mi), as mapped
0.2–1 mm/yrhow fast it slips
last 150 yearssince it last broke the surface
5quakes of M2.5+ within 10 km since 2016

In plain English

The two sides move 0.2 to 1 mm a year — 2 to 10 cm every century.

It has broken the ground surface within the last 150 years.

This week vs. its last ten years

Too quiet to rank: fewer than half a year's worth of weeks with any M1.5+ quake within 5 km, in ten years. A single quake here would read as "unusual", so we do not score it.

Computed from the USGS catalogue · a description of the past, not a forecast · method

San Andreas faultGreat Valley thrust fault systemSouthern Sierra Nevada faultOwens Valley faultWassuk Range faultWhite Mountains faultFish Lake Valley faultBenton Spring faultSmith Valley faultHuntoon Valley fault systemRound Valley faultSilver Lake faultHilton Creek faultLong Valley faultDeep Springs faultFish Slough faultMono Lake faultRobinson Creek faultWest Walker River faultRattlesnake Flat fault
The Hartley Springs fault as mapped at the surface (glowing), with the other mapped faults nearby, 5 of the M2.5+ earthquakes within 10 km of it since 2016 (dots), . Traces: USGS Quaternary Fault and Fold Database. Historic epicentres are estimates.

Every year since 2016

Earthquakes of M2.5+ with an epicentre within 10 km of the mapped trace. Near is not the same as on: some will have slipped on neighbouring faults.

Most recent near it

  1. M 3.4 5 km W of Mammoth Lakes, CA
    2024-11-27 · 10 km from the trace
  2. M 2.7 5 km W of Mammoth Lakes, CA
    2024-11-27 · 10 km from the trace
  3. M 2.6 4km WNW of Mammoth Lakes, CA
    2023-06-20 · 8 km from the trace
  4. M 2.7 4km ENE of Mammoth Lakes, CA
    2018-09-17 · 9 km from the trace
  5. M 2.8 5 km WSW of Mammoth Lakes, California
    2017-03-14 · 10 km from the trace

Neighbouring faults

Fault trace, slip rate and age: USGS Quaternary Fault and Fold Database (public domain), simplified for the web. Earthquakes: USGS ComCat. QuakeIndex does not forecast earthquakes; a fault's history describes the past. For early warning use ShakeAlert.