Mariana Islands: Magnitude-5.0 offshore earthquake occurs near Guam at around 17:50 Feb. 21

Event

A magnitude-5.0 earthquake occurred near Guam at around 17:50 Feb. 21. The epicenter was about 15 km (9 miles) northeast of Yigo Village, Guam. The tremor occurred at a depth of about 102 km (63 miles), and light shaking was probably felt throughout Guam and the southern Northern Mariana Islands. There have been no initial reports of damage or casualties resulting from the earthquake; however, significant damage is unlikely. It could take several hours until authorities can conduct comprehensive damage assessments, especially in remote areas. Light aftershocks are likely over the coming days. The event has not prompted any tsunami advisories.

Officials may temporarily shut down transportation infrastructure in the tremor zone to check for damage. Minor disruptions could occur during shutdowns, but service will likely resume quickly if no damage is found. Utility outages are possible, particularly near the earthquake's epicenter.

Advice

Plan accordingly for aftershocks. Consider vacating multistory buildings if operating in affected areas until authorities confirm their structural integrity. Allow additional time for air and road travel, as aftershocks may prompt brief disruptions. Seek updated information on road conditions before driving in hilly areas in the affected region due to potential landslides.