Good Afternoon. Hafa Adai and Welcome to the official GHS/OCD Website.
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Contact Us
Tel: 671-475-9600
Fax: 671-477-3727
Email: info@ghs.guam.gov
Location: 221B Chalan Palasyo Agana Heights, Guam 96910
Welcome to the official GHS/OCD website!
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The National Weather Service (NWS) Guam Weather Forecast Office issued a flood advisory, in effect for southern and central Guam until 10:30 a.m. this morning. Between 2.4 and 4.6 inches of rain have fallen.
A flood watch remains in effect for Guam and Rota through late tonight. Flooding caused by excessive remains possible. Rainfall of 3 to 5 inches is possible over Guam and Rota through early Thursday morning.
The community is advised to take the following precautionary actions:.
The National Weather Service (NWS) Guam Weather Forecast Office issued a flood warning, in effect for Guam until 7:30 a.m. this morning.
An unsettled pattern caused by a passing tropical disturbance, Invest 96 W, is producing heavy showers and thunderstorms. Between 2 and 3 inches of rain has already fallen. Additional rainfall amounts of 1.5 to 2 inches are possible across Guam in the next 1 to 2 hours. Flash flooding is ongoing or expected to begin shortly.
The community is advised to take the following precautionary actions:.
The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 7.6 that occurred near the Drake Passage with a depth of 10.5 km, at 6:29 a.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.
The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 7.4 that occurred 20 km E of Santiago, Philippines, with a depth of 58.1 km, at 11:43 a.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.
The National Weather Service (NWS) Guam Weather Forecast Office issued a flood advisory, in effect for Guam until 11:30 a.m. this morning. Flooding caused by excessive rainfall is expected. Between 0.5 and 1 inch of rain has fallen. Additional rainfall amounts of 1 to 2 inches are expected over the area, resulting in minor flooding.
The community is advised to take the following precautionary actions:.
The Office of Guam Homeland Security and the Office of Civil Defense (OHS-OCD), in collaboration with the University of Arkansas System, successfully hosted a 32-hour, instructor-led Malware Prevention, Discovery, and Recovery (MPDR) course from October 6–9, 2025, at the OHS-OCD facility in Agana Heights.
This timely and impactful training marked the official start of Cybersecurity Awareness Month, reinforcing Guam’s ongoing efforts to strengthen cybersecurity resilience across sectors.
The Office of Homeland Security and the Office of Civil Defense (OHS-OCD), in coordination with the Port Authority of Guam (PAG), will host two Incident Command System (ICS) training opportunities at the PAG Training Room, Piti. The courses follow:
Guam will soon take part in the world’s largest earthquake drill, the Great ShakeOut. On Thursday, October 16, 2025 at 10:16 a.m. (ChST), participants will practice the earthquake response procedure; “Drop, Cover and Hold On” from wherever they are. The drill will last for one minute.
The National Weather Service (NWS) Guam Weather Forecast Office advised that significant impacts are not expected with a tropical disturbance, Invest 95W, as it passes through the Marianas Tuesday. Currently located southeast of Guam near 12N149E, it will continue generally northwestward, passing through the Marianas tomorrow as a weak disturbance. Development of the system, if any, is likely days away and will occur well northwest of our region in the Philippine Sea.





