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Latest News
  • February 02, 2026
    |
    Press Release

    6:50 a.m. Increased Showers Expected, Locally Heavy Rainfall Possible; Hazardous Surf and Seas Remain

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  • January 30, 2026
    |
    Press Release

    8:30 a.m. OHS-OCD Hosts Cybersecurity Training Opportunities

    ----

  • January 26, 2026
    |
    Press Release

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

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  • January 25, 2026
    |
    Press Release

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

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  • January 22, 2026
    |
    Press Release

    2:10 p.m. Earthquake Recorded

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  • January 15, 2026
    |
    Press Release

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

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  • January 10, 2026
    |
    Press Release

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

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  • January 08, 2026
    |
    Press Release

    6:50 a.m Earthquake Recorded

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  • January 07, 2026
    |
    Press Release

    No Tsunami Threat to Marianas from Philippines Earthquake

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  • January 06, 2026
    |
    Press Release

    Earthquake Recorded

    ----

  • January 06, 2026
    |
    Press Release

    OHS-OCD Hosts ICS 300 & 400 Training Opportunities

    ----

  • December 30, 2025
    |
    Press Release

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

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  • December 25, 2025
    |
    Press Release

    12:15 a.m. Earthquake Recorded

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  • December 24, 2025
    |
    Press Release

    4:05 a.m. Flood Advisory in Effect for Guam; Practice Caution

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  • December 24, 2025
    |
    Press Release

    4:45 a.m. Flood Warning in Effect for Guam

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  • December 22, 2025
    |
    Press Release

    11:05 a.m. Flood Advisory in Effect for Guam; Hazardous Surf and Seas Remain

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  • December 16, 2025
    |
    Press Release

    9:25 a.m. No Tsunami Threat to Marianas from Earthquake

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  • December 09, 2025
    |
    Press Release

    4:00 a.m. No Tsunami Threat to Marianas from Japan Earthquake

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  • December 07, 2025
    |
    Press Release

    7:00 a.m. No Tsunami Threat to Marianas from Alaska Earthquake

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  • November 25, 2025
    |
    Press Release

    GHS/OCD, NBG, and AAFB to Conduct Routine Testing of Advanced Warning Systems

    ----

  • February 02, 2026
    |
    Press Release

    6:50 a.m. Increased Showers Expected, Locally Heavy Rainfall Possible; Hazardous Surf and Seas Remain

    ----

  • January 30, 2026
    |
    Press Release

    8:30 a.m. OHS-OCD Hosts Cybersecurity Training Opportunities

    ----

  • January 26, 2026
    |
    Press Release

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

    ----

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SEPTEMBER IS NATIONAL PREPAREDNESS MONTH!

 

ABOUT GHS/OCD

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  • FLOOD
  • FIRE/DROUGHT
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X Flooding is a temporary overflowing of water onto land that is normally dry. Flooding may happen with only a few inches of water, or it may cover a house to the rooftop. There are many possible causes of floods including heavy rain, coastal storms and storm surge, waterway overflow from being blocked with debris, or overflow of levees, dams, or waste water systems. Flooding can occur slowly over many days or happen very quickly with little or no warning, called flash floods. 

To learn more, visit https://www.ready.gov/floods
X

Wildfire

  • Regularly clean the roof and gutters.
  • Maintain an area approximately 30’ away from you home that is free of anything that will burn, such as wood piles, dried leaves, newspapers and other brush.
  • Connect garden hoses long enough to reach any area of the home and fill garbage cans, tubs, or other large containers with water.
  • Review your homeowner's insurance policy and also prepare/update a list of your home's contents.
 

Fire Weather

  • Turn on your TV/radio. You’ll get the latest weather updates and emergency instructions.
  • Know where to go. If you are ordered to evacuate, know the route to take and have plan of where you will go. Check-in with your friends and family.
  • Keep your car fueled, in good condition, and stocked with emergency supplies and a change of clothes.


Drought

Conserve water


Take shorter showers.
  • Turn off the water while brushing your teeth or shaving.
  • Run the washer less frequently and only when you have a full load.
  • Water your lawn less frequently and do so when the temperature is cooler in the early morning or late evening.
  • When you run the tap to heat or cool water, keep a pitcher to store the water and use it to water plants.
  • Avoid washing your car.

Practice fire prevention
  • Don't set off fireworks when conditions are dry.
  • Deposit cigarette butts in the proper receptacle to avoid starting a
  • Pour water over camp fires and backyard fire pits to ensure they are completely out before leaving them unattended.

Follow directions from local officials. If there are restrictions on water usage, be sure to heed them.

To learn more, visit https://www.ready.gov/wildfires and https://www.ready.gov/drought
 

 

X
Typhoons/Hurricanes are massive storm systems that form over the water and move toward land. Threats from typhoons/hurricanes include high winds, heavy rainfall, storm surge, coastal and inland flooding, and rip currents. 

“Hurricanes” form in the Atlantic Northeast Pacific region and “Typhoons” form in the Northwest Pacific Region. These large storms are call cyclones in other parts of the world. 

To learn more, visit https://www.ready.gov/hurricanes. 
X Hazardous materials come in the form of explosives, flammable and combustible substances, poisons and radioactive materials. Hazards can occur during production, storage, transportation, use, or disposal. You and your community are at risk if a chemical is used unsafely or released in harmful amounts in the environement where you live, work or play. 

Visit our page, specific to Rad/Nuc, WMD and HazMat Preparedness
X

Department of Homeland Security (DHS) Definition of Terrorism

Under Section 2 of the Homeland Security Act of 2002:

The term ‘‘terrorism’’ means any activity that— (A) involves an act that— (i) is dangerous to human life or potentially destructive of critical infrastructure or key resources; and (ii) is a violation of the criminal laws of the United States or of any State or other subdivision of the United States; and (B) appears to be intended— (i) to intimidate or coerce a civilian population; (ii) to influence the policy of a government by intimidation or coercion; or (iii) to affect the conduct of a government by mass destruction, assassination, or kidnapping.

To learn more, visit https://www.dhs.gov/topic/preventing-terrorism and https://www.dhs.gov/national-terrorism-advisory-system
X Tsunamis, also known as seismic waves (mistakenly called “tidal waves”), are a series of enormous waves created by an underwater disturbance such as an earthquake, landslide, volcanic eruption, or meteorite. Earthquake-induced movement of the ocean floor most often generate tsunamis. If a major earthquake or landslide occurs close to shore, the first wave in a series could reach the beach in a few minutes, even before a warning is issued.

 To learn more, visit our Tsunami Page and https://www.ready.gov/tsunamis.
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SEPTEMBER IS NATIONAL PREPAREDNESS MONTH!

 

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6:50 a.m. Increased Showers Expected, Locally Heavy Rainfall Possible; Hazardous Surf and Seas Remain

The National Weather Service (NWS) Weather Forecast Office Guam is currently monitoring a shear line over the CNMI and a weak tropical disturbance located south of Guam in eastern Yap state. Models suggest the disturbance will move west-northwestward, taking it between Yap and Guam, but closer to Yap.

  • Read more about 6:50 a.m. Increased Showers Expected, Locally Heavy Rainfall Possible; Hazardous Surf and Seas Remain

8:30 a.m. OHS-OCD Hosts Cybersecurity Training Opportunities

 
  • Read more about 8:30 a.m. OHS-OCD Hosts Cybersecurity Training Opportunities

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.

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

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.

  • Read more about 10:15 a.m. Hazardous Surf and Seas Remain; Advisories in Effect

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.

  • Read more about 2:10 p.m. Earthquake Recorded

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.

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

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.

  • Read more about 6:00 P.M. Advisories in Effect; Hazardous Surf and Seas Remain

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.

  • Read more about 6:50 a.m Earthquake Recorded

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.

  • Read more about No Tsunami Threat to Marianas from Philippines Earthquake

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.

  • Read more about Earthquake Recorded

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