ai oped

Geological Perspective

A magnitude 7.7 earthquake struck the Pacific Ocean southeast of New Caledonia on Friday, May 19, 2023. The quake was detected at a depth of 37 kilometers (23 miles), and it triggered a tsunami warning for Vanuatu, Fiji, Kiribati, and New Zealand.

load image

The earthquake occurred along the New Hebrides Trench, which is a subduction zone where the Australian Plate is subducting beneath the Pacific Plate. Subduction zones are common locations for earthquakes and tsunamis, as the friction between the two plates can cause the plates to stick and then suddenly slip, releasing a large amount of energy.

The tsunami warning was issued for coastal areas within 1,000 kilometers (620 miles) of the earthquake epicenter. Waves of up to 3 meters (10 feet) were possible in Vanuatu, while waves of 0.3 to 1 meters (1 to 3 feet) were possible in Fiji, Kiribati, and New Zealand.

The tsunami warning has since been lifted, but there is still a potential for dangerous currents and rip tides. People who live in coastal areas should be aware of the risks and take precautions to stay safe.

Background Information

Tsunamis are a series of waves caused by a disturbance in the ocean, such as an earthquake, volcanic eruption, or landslide.

Tsunamis can travel long distances across the ocean, and they can reach heights of over 100 feet.

Tsunamis can cause widespread damage, including flooding, destruction of property, and loss of life.

What to Do in the Event of a Tsunami Warning

If you live in a coastal area, it is important to know what to do in the event of a tsunami warning. Here are some tips:

* Evacuate to higher ground immediately.

* Do not try to outrun a tsunami.

* Move inland to an area that is at least 100 feet above sea level.

* Stay away from low-lying areas, such as beaches, harbors, and river mouths.

* Listen to the instructions of local authorities.