DepthDistance below sea level in kilometers.
33 km is used as a default
depth for earthquakes determined to be shallow, but whose depth is not
satisfactorily determined by the data. Default depths of 5 or 10 km are usually
used in mid-continental areas and on mid-ocean ridges since earthquakes in these
areas are usually shallower than 33 km.
UTC
Coordinated Universal Time
In the United States, Canada or Mexico, to convert to your local time,
find your time zone and subtract the number of hours listed.
| Standard Time | Daylight Time |
Newfoundland | UTC - 3½ hours | UTC - 2½ hours |
Atlantic | UTC - 4 hours | UTC - 3 hours |
Eastern | UTC - 5 hours | UTC - 4 hours |
Central | UTC - 6 hours | UTC - 5 hours |
Mountain | UTC - 7 hours | UTC - 6 hours |
Pacific | UTC - 8 hours | UTC - 7 hours |
Alaska | UTC - 9 hours | UTC - 8 hours |
Hawaii | UTC - 10 hours | |
Aleutian | UTC - 10 hours | UTC - 9 hours |
COMMENTS
The regions shown in the comments column are usually automatically-generated names
from the Flinn-Engdahl (F-E) seismic and geographical regionalization scheme.
The boundaries of
these regions are defined at one-degree intervals and therefore differ from
irregular political boundaries.
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