6.9mw

The 1989 Loma Prieta, California Earthquake

18.10.1989 00:04 UTC Depth 17.2 km
Sensitivity zones: strong — up to 55.9 km moderate — up to 139.6 km weak — up to 310.3 km

Sensitivity zones

Approximate radii, derived from magnitude and hypocentre depth, within which shaking is typically felt:

  • strong — up to 55.9 km
  • moderate — up to 139.6 km
  • weak — up to 310.3 km

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