Indonesia: Magnitude-6.1 offshore earthquake occurs off the west coast of North Sumatra Province April 3

Event

A magnitude-6.1 earthquake occurred off the west coast of North Sumatra Province at around 21:59 April 3. The epicenter was about 73 km (45 miles) southwest of Padangsidempuan. The tremor occurred at a depth of about 84 km (52 miles), and moderate shaking was probably felt in western coastal areas of North Sumatra province near the epicenter, as well as light shaking throughout much of North Sumatra and parts of southern Aceh, northern West Sumatra, and northern Riau provinces. There have been no initial reports of damage or casualties as a result of the earthquake, and significant damage is unlikely. It could take several hours until authorities can conduct comprehensive damage assessments, especially in remote areas. Light-to-moderate 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.