Local Times of last update
- Sunday, August 1, 2010 at 04:25:45 (UTC) - Coordinated Universal Time
- Sunday, August 1, 2010 at 01:25:45 AM (ADT) - Atlantic
- Sunday, August 1, 2010 at 00:25:45 AM (EDT) - Eastern
- Saturday, July 31, 2010 at 11:25:45 PM (CDT) - Central
- Saturday, July 31, 2010 at 10:25:45 PM (MDT) - Mountain
- Saturday, July 31, 2010 at 09:25:45 PM (PDT) - Pacific
- Saturday, July 31, 2010 at 08:25:45 PM (AKDT) - Alaska
- Saturday, July 31, 2010 at 06:25:45 PM (HST) - Hawaii
The date-time stamp in the corner of the earthquake maps gives the time at which that map was last updated in UTC (Coordinated Universal Time). Local times listed above are the time of the latest update for time zones spanned by these maps. All maps containing earthquakes are updated once an hour on the hour, but when a new earthquake occurs, only maps displaying the new event are updated. Thus it is possible that some of the maps (10-degree and 2-degree maps) will have time stamps older than the times listed here, but they should never be more than one hour older.
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