Hawaiian Electric Co. has issued some emergency tips in advance of a possible tsunami later this morning. HECO urges residents to:

>> Make sure they have a battery-powered radio on hand.

>> Have extra batteries for flashlights and other equipment should power go out.

>> Turn off and unplug any unnecessary electrical equipment in a house in the inundation zone. 

>> Turn the freezer and refrigerator to their coldest settings. If power goes out, this will keep food fresher longer.

>> Make arrangements for any person who relies on electricity for life-sustaining medical equipment.

>> When evacuating, be sure to take medical equipment, medicine and other supplies.

>> Place any portable generator in a well-ventilated area.

HECO said it is mobilizing field crews and equipment to staging areas to be most effective during an emergency.