QuakeIndex

Fault · California

Manix fault

35 kmlong (22 mi), as mapped
not measuredhow fast it slips
last 150 yearssince it last broke the surface
15quakes of M2.5+ within 10 km since 2016

In plain English

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

The largest earthquake recorded near it was M 6.5 in 1947 (The 1947 Manix, California Earthquake) — about 180,000 times the energy of an M3.0, the size people start to feel. It released about 85 kilotons of TNT.

This week vs. its last ten years

0/100

quiet

0 quakes of M1.5+ within 5 km of the trace in the last 7 days — busier than 0% of weeks since 2016. A normal week: 0–0.

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

San Andreas faultGarlock faultLenwood-Lockhart faultHelendale-South Lockhart faultSierra Madre faultCalico-Hidalgo faultPanamint Valley faultPisgah-Bullion faultCamp Rock-Emerson-Copper Mountain faultNorth Frontal thrust systemHarper faultBlackwater faultJohnson Valley faultSouthern Death Valley faultLavic Lake faultBullion Mountains faultHomestead Valley faultCleghorn faultOwl Lake faultMt. General faultRed Pass faultOld Woman Springs faultTank Canyon fault M 6.5 · 1947 · The 1947 Manix, California Earthquake
The Manix fault as mapped at the surface (glowing), with the other mapped faults nearby, 15 of the M2.5+ earthquakes within 10 km of it since 2016 (dots), and the epicentres of the large historic earthquakes recorded near it (rings). 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.

The big ones recorded near it

  1. M 6.5 The 1947 Manix, California Earthquake
    April 10, 1947 · epicentre on the trace
  2. M 4.9 22 km ENE of Barstow, CA
    July 29, 2024 · epicentre 6 km from the trace

Before 1973 from the USGS ComCat historical catalogue (within 25 km; epicentres of old earthquakes are estimates). Since 2016, M4+ within 10 km.

Most recent near it

  1. M 2.7 20 km ENE of Barstow, CA
    2024-07-30 · 7 km from the trace
  2. M 2.7 22 km ENE of Barstow, CA
    2024-07-29 · 5 km from the trace
  3. M 3.5 22 km ENE of Barstow, CA
    2024-07-29 · 6 km from the trace
  4. M 4.9 22 km ENE of Barstow, CA
    2024-07-29 · 6 km from the trace
  5. M 3.5 28km ENE of Barstow, CA
    2023-06-24 · 3 km from the trace
  6. M 3.6 28km ENE of Barstow, CA
    2023-04-17 · 3 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.