000 SEGM60 PGUM 092201 EQRGUM GUZ001-002-003-004-100600- EARTHQUAKE REPORT...PRELIMINARY NATIONAL WEATHER SERVICE TIYAN GU 8 AM CHST SAT MAY 10 2008 AN EARTHQUAKE WAS FELT AT WFO GUAM AT 752 AM CHST SATURDAY... 2152 UTC FRIDAY. NO DAMAGE IS EVIDENT. A RUMBLING WAS HEARD AND THE BUILDING SHOOK FOR ABOUT 30 TO 45 SECONDS. IT IS ESTIMATED AT BETWEEN A III AND IV ON THE MERCALLI SCALE. INFORMATION RELEASED IN THIS STATEMENT IS PRELIMINARY. OFFICIAL INFORMATION...INCLUDING EARTHQUAKE LOCATION AND RICHTER SCALE MAGNITUDE...MAY BE PROVIDED BY THE PACIFIC TSUNAMI WARNING CENTER OR THE UNITED STATES GEOLOGICAL SURVEY AS IT BECOMES AVAILABLE. $$ ZIOBRO