logo
ABOUT GHS/OCD

ABOUT GHS/OCD

ARE YOU READY?

ARE YOU READY?

PREPAREDNESS

PREPAREDNESS

DISASTER ASSISTANCE

DISASTER ASSISTANCE

OPERATIONS

OPERATIONS

CONTACT GHS/OCD

CONTACT GHS/OCD

GHS

 

Join the GHS/OCD Email List

 

Back to top

June 2018 is Typhoon Preparedness Month

SEARCH THROUGH THIS WEBSITE. 

 

 

11:45 a.m. GHS/OCD, NBG, and AAFB to Conduct Routine Testing of Advanced Warning Systems

The Offices of Guam Homeland Security and Civil Defense (GHS/OCD), U.S. Naval Base Guam (NBG), and Andersen Air Force Base (AAFB) will conduct routine testing of the vital communication and advance warning system sirens, respectively, on Tuesday, February 3, 2026, starting at 3:15 p.m.

GHS/OCD will test the All Hazards Alert Warning System (AHAWS) sirens in conjunction with NBG and AAFB monthly routine testing of the “Giant Voice (GV)” sirens.

10:15 a.m. Hazardous Surf and Seas Remain; Advisories in Effect

The National Weather Service (NWS) Weather Forecast Office Guam has the following advisories in effect:

A high surf advisory remains in effect for Guam, Rota, Tinian, and Saipan until 6 p.m. Monday. Large breaking waves of 9 to 11 feet are expected for west and north facing reefs of the Marianas. Dangerous swimming and surfing conditions and localized beach erosion are expected. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

2:10 p.m. Earthquake Recorded

The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 4.9 that struck 71 km ESE of Yigo Village, Guam with a depth of 38.2 km, at 1:53 p.m. (ChST). 

As advised by the Pacific Tsunami Warning Center, there is no tsunami threat to the Marianas from the earthquake. There were no major damages or injuries reported from the earthquake.

6:00 a.m. Tropical Depression Formed Overnight Northwest of Palau; No Direct Threat to the Marianas

The National Weather Service (NWS) Weather Forecast Office Guam is monitoring Tropical Depression 01W, which formed northwest of Palau overnight. As of 1 a.m., 01W was located 9.5N and 130.4E, about 315 miles west-northwest of Koror and 1,010 miles west-southwest of Guam. It is moving northwest at 9 mph with maximum sustained winds of 30 mph. 01W is forecast to intensify, possibly becoming a tropical storm Friday night.

6:00 P.M. Advisories in Effect; Hazardous Surf and Seas Remain

The National Weather Service (NWS) Weather Forecast Office Guam has the following advisories in effect:

A high surf advisory remains in effect for Guam, Rota, Tinian, and Saipan until 4 p.m. Tuesday. Large breaking waves of 7 to 10 feet are expected for north facing reefs of the Marianas. Dangerous swimming and surfing conditions and localized beach erosion are expected. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

6:50 a.m Earthquake Recorded


The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 4.9 that struck 64 km NE of Yigo Village, Guam with a depth of 129.0 km, at 4:02 a.m. (ChST). 

As advised by the Pacific Tsunami Warning Center, there is no tsunami threat to the Marianas from the earthquake. There were no major damages or injuries reported from the earthquake.

No Tsunami Threat to Marianas from Philippines Earthquake

The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 6.4 that occurred 27 km E of Santiago, Philippines, with a depth of 58.5 km, at 1:02 p.m. (ChST).

As advised by the Pacific Tsunami Warning Center, there is no tsunami threat to Guam and the CNMI from this earthquake.

This will be the final statement issued by GHS/OCD unless additional information is received.

Earthquake Recorded

The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 5.2 that struck 182 km SSW of Merizo Village, Guam, with a depth of 10.0 km, at 5:01 p.m. (ChST).

As advised by the Pacific Tsunami Warning Center, there is no tsunami threat to the Marianas from the earthquake. There were no major damages or injuries for Guam reported from the earthquake.

The Offices of Guam Homeland Security and Civil Defense remind the community that when an earthquake strikes, conduct the earthquake procedure, “Drop, Cover and Hold On” until the shaking stops.

9:30 a.m. GHS/OCD, NBG, and AAFB to Conduct Routine Testing of Advanced Warning Systems

The Offices of Guam Homeland Security and Civil Defense (GHS/OCD), U.S. Naval Base Guam (NBG), and Andersen Air Force Base (AAFB) will conduct routine testing of the vital communication and advance warning system sirens, respectively, on Tuesday, January 6, 2026, starting at 3:15 p.m.

GHS/OCD will test the All Hazards Alert Warning System (AHAWS) sirens in conjunction with NBG and AAFB monthly routine testing of the “Giant Voice (GV)” sirens. 

Pages