A rehearsal for a six-meter tsunami will be carried out in the central region's city of Da Nang this October, officials said a city meeting on Wednesday.
Nearly 3,000 people are expected to join the tsunami-drill in Son Tra District, including more than 2,100 police officers and soldiers.
The rehearsal will follow a scenario in which an earthquake of between 8.6 and 8.8 Richters will start on October 7 west of the Philippines, triggering a tsunami that will send waves 5-6 meters high to Da Nang three hours later.
Several coastal areas will be two to three meters underwater. The waves are going to destroy houses and trees, and disrupt traffic while sailors and tourists will need urgent rescue.
Guard stations will spread warning signals and local authorities will evacuate residents, looking for missing people or those in danger, officials said.
Boats, helicopters and cars will be mobilized for rescue and excavation efforts.
According to the Ministry of Natural Resources and Environment, a 8.3 magnitude earthquake from the Philippines can create a tsunami 6.2 meters high in Quang Ngai Province and 2.1 meters high in Nha Trang, both to the south of Da Nang.
An earthquake of 9.2 magnitude from the same area can cause a tsunami 10.6 meters high in Quang Ngai and five meters in Nha Trang.
It would take around two hours for a tsunami from the Philippines to reach Vietnam's coastline, the ministry said.
A 9.0 magnitude earthquake on March 11, which was the largest earthquake recorded in Japan, caused 10 meter waves in that country, resulting in 25,000 people dead and missing.