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

kilometer. The mb and M s magnitudes listed in the hypocenter catalog are
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repeated in the intensity catalog. Space is included to report up to three
different maximum intensities. The first is the observed maximum intensity.
This is the actual maximum value of all reported intensity observations. In
some situations, however, an intensity may not be reported at a location where
the maximum intensity occurred. This may happen if the epicenter of the event
is offshore or located in an unpopulated area. In these situations it is
often possible to estimate what the maximum intensity would have been based on
the distribution of other observed intensities. Thus, the second maximum
intensity included is an estimated maximum. The third is a maximum intensity
computed from a reported magnitude using an appropriate regression formula.
The last value in the hypocenter record indicates the number of location
records which follow.
Each location record describes an observed intensity value for a given
location. A two-letter country code is listed to indicate the country in
which the intensity was reported. A description of the locality is given,
which is usually the name of a city or village sometimes followed by the
province in which it is locaLed. Sometimes the country name is again included
in this description. Coordinates and elevation of the location are listed.
Space is provided to report the distance from the epicenter to the location
and the distance from the hypocenter to the location. The difference between
these two parameters is that the hypocenter distance takes into account depth
of the hypocenter and elevation at the given location while the epicentral
distance does not. Space is also provided to report the azimuth between the
czicenter and the coordinates of the given location. The observed intensity
for that location is listed. All intensities are identified with the scale
used for evaluation, either Modified Mercalli or MSK. The investigator who