QuakeIndex

Fault · Oregon

Daisy Bank fault

80 kmlong (50 mi), as mapped
> 5 mm/yrhow fast it slips
< 15,000 yearssince it last broke the surface
0quakes of M2.5+ within 10 km since 2016

In plain English

The two sides grind past each other faster than 5 mm a year — more than half a metre (20 inches) every century.

Its most recent surface rupture is younger than 15,000 years.

The largest earthquake recorded near it was M 9.0 in 1700 (The 1700 Cascadia Earthquake) — about 1,000,000,000 times the energy of an M3.0, the size people start to feel. It released about 480 megatons of TNT.

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

Cascadia megathrustCascadia fold and fault beltAlvin Canyon faultStonewall anticline M 9.0 · 1700 · The 1700 Cascadia Earthquake
The Daisy Bank fault as mapped at the surface (glowing), with the other mapped faults nearby, and the epicentres of the large historic earthquakes recorded near it (rings). Traces: USGS Quaternary Fault and Fold Database. Historic epicentres are estimates.

The big ones recorded near it

  1. M 9.0 The 1700 Cascadia Earthquake
    January 27, 1700 · epicentre 24 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.

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.