This figure of North Anatolian fault quakes is from Stein et al. (1997), updated for the 1999 Mw=7.6 Izmit quake, with the white arrows giving the direction of cascading quakes. Even though 1939-1999 saw nearly the entire 1,000 km long fault rupture in a largely western falling-domino sequence, the earlier record is quite different. When we examined the inter-event times (the time between quakes at each point along the fault), we found it to be 450±220 years. Not only was the variation great—50% of the time between quakes—but the propagation direction was also variable.
Latest posts by Temblor (see all)
- Structures can be both earthquake-resilient and sustainable - July 19, 2024
- Earthquakes rattle Palawan, Philippines: Is the region as stable as we thought? - July 3, 2024
- Seismic retrofit rates highlight inequitable efforts - June 20, 2024