An earthquake lasted 32 years and ended in disaster

An 8.5-magnitude earthquake struck the Indonesian island of Sumatra in February 1861, shook the earth and caused a wall of water to wash away the nearby banks and kill thousands of people…Now it seems that the tragic incident was not an isolated incident: the truth is that It was the end of the longest documented earthquake to date, which occurred over a span of 32 years. These types of earthquakes, known as slow slip events, can occur over days, months, or years. But the recently described phenomenon lasted more than twice as long as the previous record holder, as stated in an article published in natural earth sciences…

Like fast phenomena, slow earthquakes release energy stored by the movements of tectonic plates. But instead of releasing it into an earth-shaking storm, slow earthquakes release tension little by little over time and are not a danger on their own. However, subtle changes below the surface can increase pressure in adjacent areas along the fault, which could increase the risk of a larger nearby earthquake…

In 2016, Reshav Malik from Nanyang Technological University analyzed coral reef data with fresh eyes. By modeling the physics of the subduction zone and the movement of fluids along the fault, the researchers discovered that the rapid change was caused by the release of accumulated stress – the onset of a slow earthquake…

Understanding these slow phenomena is critical to understanding the potential risks they pose in causing larger tremors. Slow landslides preceded many of the strongest earthquakes documented to date…“It’s a hot topic in this area,” says Noel Bartlow, a slow seismic geophysicist at the University of Kansas who was not involved in the study. But proving that slow slip events can cause major geological earthquakes has been difficult. Not all slow earthquakes cause a large earthquake…“The evidence is growing, but it is still limited to a few case studies…”

Worth learning about. Of course. As our knowledge and research technology improves, we find more to research…in addition to what prompted study in the first place.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.