Swath bathymetry, magnetic  and gravity anomaly data, which are used in a manuscript entitled "Seafloor structure near the epicenter of the great March 25, 1998, Antarctic Plate earthquake" submitted to Journal of Geophysical Research - Solid Earth, are stored in this folder.  Followings are list of file and data format.

swath_anteq.grd: NetCDF grid file of swath bathymetry data.  Rectangular area boded by northward corner:63.25S, 149E and southeast corner:63.25S, 150E. Data mesh are 200m.

swath_sd_anteq.grd: NetCDF grid file of standard deviation data of the swath bathymetry grid.  Rectangular area boded by northward corner:63.25S, 149E and southeast corner:63.25S, 150E

mag_anteq.xyz:  Tab deliminated ASCII data of magnetic anomalies.  File format  "Longitude"  "Latitude"   "Magnetic anomaly (subtracting IGRF 2000)"  "Total intensity of geomagnetic field"

grav_anteq.xyz.: Tab deliminated ASCII data of  free-air gravity anomalies.  File format  "Longitude"  "Latitude"   "free-air gravity anomaly (Etovos corected)"  "gravity field value"  "heading of the ship"