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June 2018 is Typhoon Preparedness Month

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

The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 5.7 that occurred 72 km SSE of San Jose Village, Northern Mariana Islands, with a depth of 99.6 km, at 9:06 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 for Guam reported from the earthquake.

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

The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 7.6 that occurred 74 km ENE of Misawa, Japan, with a depth of 44.1 km, at 12:15 a.m. (ChST).

 As advised by the Pacific Tsunami Warning Center, there was 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.

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

The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 7.0 that occurred 90 km N of Yakutat, Alaska, with a depth of 10.0 km, at 6:41 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.

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, December 2, 2025, 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.

Earthquake Recorded

The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 4.6 that struck 60 km NNE of Yigo Village, Guam, with a depth of 125.8 km, at 4:51 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.

9:10 a.m. No Tsunami Threat to Marianas from Earthquake

The U.S. Geological Survey recorded an earthquake with a preliminary magnitude of 5.5 that occurred 16 km ENE of Yigo Village, Guam, with a depth of 102.0 km, at 8:53 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 for Guam reported from the earthquake.

No Immediate Threat to Marianas Assessed from Reported North Korea Launch

The Offices of Guam Homeland Security and Civil Defense (GHS/OCD), in conjunction with the Mariana Regional Fusion Center (MRFC), federal and military partners, continue to monitor events surrounding the region including reports of the recent launch of an unidentified projectile out of the Democratic People’s Republic of Korea (DPRK) today.

4:15 p.m. Flood Advisory in Effect for Guam; Practice Caution

The National Weather Service (NWS) Guam Weather Forecast Office issued a flood advisory, in effect for Guam until 5:45 p.m. this afternoon. Between 0.4 and 1 inch of rain has fallen. Additional rainfall of 1 to 2 inches are possible through 6:45 p.m.

A flood watch remains in effect for Guam and Rota through Friday night. Flooding caused by excessive rainfall continues to be possible. Rainfall of 3 to 5 inches is possible over Guam and Rota through Friday afternoon.

The community is advised to take the following precautionary actions:

    2:00 p.m. Fung-Wong Upgraded to Tropical Storm

    The National Weather Service (NWS) Guam Weather Forecast Office continues to monitor what is now Tropical Storm Fung-Wong. As of 1 p.m., Fung-Wong was located near 10.5N 139.6E, about 405 miles west-southwest of Guam, moving northwest at 14 mph, with maximum sustained winds of 45 mph. The latest forecast track shows Fung-Wong, passing near or just northeast of Ulithi and Fais in Yap State today. It is expected to intensify over the next few days, possibly becoming a typhoon Friday.

    Conditions for the Marianas

    10:50 a.m. Tropical Depression 32W Moving West-Northwest

    The National Weather Service (NWS) Guam Weather Forecast Office continues to monitor Tropical Depression 32W, which has been named Fung-Wong by the Japan Meteorological Agency. As of 7 a.m., Fung-Wong was located near 9.7N 140.6E, about 385 miles southwest of Guam, moving west-northwest at 14 mph, with maximum sustained winds of 35 mph. The latest forecast track shows Fung-Wong, passing near or just northeast of Ulithi and Fais in Yap State today. It is expected to intensify over the next few days, possibly becoming a tropical storm later this morning or early afternoon.

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