NOAA Center for Tsunami Research - June 23, 2001 Peru Tsunami

Propagation of the June 23, 2001 Peru Tsunami:
Preliminary MOST Model Results

Tsunami source with revised CMT solution explains amplitudes at Hilo, HI

Model:	MOST propagation model in spherical coordinate (Titov & Gonzalez,1997; Titov & Synolakis, 1998). Due to coarse grid resolution, only offshore wave propagation is modeled. Solid wall boundary conditions are set at 50m depth.
Bathymetry:	Derived from Smith & Sandwell 2min data. Resolution of the computational grid is variable.It is ~6min near equator and becomes finer when moving south.
Source:	CMT solutions from Harvard and USGS were used
Results:	Harvard source model parameters NP1: 160km X 60km, slip=5m Maximum computed amplitudes Time series at proposed DART location D125 NEIC source model parameters NP1: 180km X 80km, slip=6.5m Maximum computed amplitudes NP2: 180km X 80km, slip=6.5m Maximum computed amplitudes Time series at proposed DART location D125 Revised Harvard CMT New! NP1: 200km X 70 km, slip = 15m Maximum computed amplitudes with propagation model Time series at Hilo tide gage with inundation model
References:	Titov, V.V., and F.I. Gonzalez (1997): Implementation and testing of the Method of Splitting Tsunami (MOST) model NOAA Technical Memorandum ERL PMEL-112, 11 pp.. (PDF) Titov, V. V.; Synolakis, C. E., 1998, Numerical modeling of tidal wave runup, Journal of Waterways, Ports, Coastal and Ocean Engineering, 124 (4), 157-171.

NOAA Center for Tsunami Research