catalogo de terremotos para america del sur catalog of earthquakes ...

intensities but also the distribution of observed intensities in converting MM
intensities to MSK intensities.
Intensity DaLa
A summary of the intensity catalog format is given in Appendix B.
Detailed intensity data are given for some of the events included In the.
hypocenter catalog. Descriptive data provided by Silgado (1985) were not
available at the time of the ccmpilation of the intensity catalog and, thus,
may not be incluocd here. Two types of records, or line entriea, are included
in the intensity catalog. The first is a single line for each event.
describing the hypocenter parameters. Then for each event a number of
location records are Included which gives the intensity assigned for that
earthquake at various locations. The intensity scale used (MM or MSK) is
identified for all listed intensities.
The hypocentral identification includes much of the same information that
is given for that event in the hypocenter catalog. The same country cade and
identifying number are used in The intensily catalog as are used for that
event in the hypocenter catalog. The date and time are also iisted the same
but the time is only given to the nearest second in the intensity catalog.
The intensity catalog allows space for two different epicenters; an
instrumental epicenter and an epicenter determined from intensity
distribution. The reason for this is that the instrumental epicenter may not
correspond very well with the center of the meizoseismal area. This may lead
to additional uncertainty in the investigation of intensity attenuation.
Therefore, in some instances it may be useful to include both an instrumental
epicenter and an epicenter based on the intensity distribution. Earthquake
focal depth is also given in the intensity catalog but to the nearest