A study at the University of Houston found that the 1975 Kalapana earthquake provides insights into Kilauea

Scientists at the University of Hawaii say an earthquake nearly 50 years ago fundamentally changed the development of Kilauea.

According to a study by researchers from UH Manoa, a 7.7-magnitude earthquake beneath Kalapana in 1975 changed the way the south side of Hawaii Island shifted due to volcanic activity.

The earthquake occurred on November 29, 1975, with a 5.7-magnitude primary quake rocking the island's southern shores about an hour before the main event. The earthquake caused significant ground displacement, with some of the southern coast sliding horizontally by up to 26 feet. The earthquake also generated a 20-foot tsunami.

Two people died and 28 others were injured following the event.

The study, published in November in the journal Geophysical Research: Solid Earth, studied 120 years of data about the volcano to analyze deformation patterns that persisted for decades before and after the quake. That data included observations of 338,396 earthquakes and more than 15,000 displacement measurements to create a computational model of the region before, during and after the earthquake.

“It's a really impressive feat of data collection,” said Ingrid Johansson, a research geophysicist at the Hawaiian Volcano Observatory. “That may not sound very exciting, but it is very impressive for those of us who work with data.”

Don't miss what's happening!

Stay in touch with the most important stories, as they happen, conveniently in your email inbox. It's free!

Johansson said the study found that the 1975 earthquake served as a “dividing line,” where ground deformation patterns were noticeably different before and after the event.

In short, Johansson explained that “the south flank (of Kilauea) was deforming differently before the earthquake than it is now,” although she added that the differences are complex.

In general, the fault creeps within the zone – the ground gradually slides along the fault; In this case, towards the ocean – they appear to have diminished considerably since the earthquake, falling from an average of 10 centimeters per year before the earthquake to 4 centimeters per year after the earthquake.

Lead author Lauren Ward-Young, who conducted the study as part of her doctoral dissertation, explained in a statement that the findings suggest that the fault was likely held in place by friction before the quake, which led to pressure building up over time until the quake occurred.

“Deciphering Kilauea’s history deepens our understanding of volcanic and seismic hazards,” Young said. “It provides critical insights into how stress evolves in volcanic systems, guiding our ability to predict and interpret future earthquakes and magmatic events.”

“This suggests that the pattern we are used to with the volcano did not exist before,” Johansson said. “It challenges us to think about how volcano behavior will change in the future, and how we can't rely on the same background processes that we're used to remaining the same forever.”

Young said in the statement that changes in landslide along the fault indicate other changes that will affect seismic and magmatic activity in the region over long periods.

“Hawaii communities live alongside active volcanoes and face significant seismic risks,” Young said. “This research enhances risk preparedness and reinforces the University of Hawaii’s commitment to advancing science for the safety and well-being of Hawaii’s people and ecosystems by highlighting important past events.”

What Are The Main Benefits Of Comparing Car Insurance Quotes Online

LOS ANGELES, CA / ACCESSWIRE / June 24, 2020, / Compare-autoinsurance.Org has launched a new blog post that presents the main benefits of comparing multiple car insurance quotes. For more info and free online quotes, please visit https://compare-autoinsurance.Org/the-advantages-of-comparing-prices-with-car-insurance-quotes-online/ The modern society has numerous technological advantages. One important advantage is the speed at which information is sent and received. With the help of the internet, the shopping habits of many persons have drastically changed. The car insurance industry hasn't remained untouched by these changes. On the internet, drivers can compare insurance prices and find out which sellers have the best offers. View photos The advantages of comparing online car insurance quotes are the following: Online quotes can be obtained from anywhere and at any time. Unlike physical insurance agencies, websites don't have a specific schedule and they are available at any time. Drivers that have busy working schedules, can compare quotes from anywhere and at any time, even at midnight. Multiple choices. Almost all insurance providers, no matter if they are well-known brands or just local insurers, have an online presence. Online quotes will allow policyholders the chance to discover multiple insurance companies and check their prices. Drivers are no longer required to get quotes from just a few known insurance companies. Also, local and regional insurers can provide lower insurance rates for the same services. Accurate insurance estimates. Online quotes can only be accurate if the customers provide accurate and real info about their car models and driving history. Lying about past driving incidents can make the price estimates to be lower, but when dealing with an insurance company lying to them is useless. Usually, insurance companies will do research about a potential customer before granting him coverage. Online quotes can be sorted easily. Although drivers are recommended to not choose a policy just based on its price, drivers can easily sort quotes by insurance price. Using brokerage websites will allow drivers to get quotes from multiple insurers, thus making the comparison faster and easier. For additional info, money-saving tips, and free car insurance quotes, visit https://compare-autoinsurance.Org/ Compare-autoinsurance.Org is an online provider of life, home, health, and auto insurance quotes. This website is unique because it does not simply stick to one kind of insurance provider, but brings the clients the best deals from many different online insurance carriers. In this way, clients have access to offers from multiple carriers all in one place: this website. On this site, customers have access to quotes for insurance plans from various agencies, such as local or nationwide agencies, brand names insurance companies, etc. "Online quotes can easily help drivers obtain better car insurance deals. All they have to do is to complete an online form with accurate and real info, then compare prices", said Russell Rabichev, Marketing Director of Internet Marketing Company. CONTACT: Company Name: Internet Marketing CompanyPerson for contact Name: Gurgu CPhone Number: (818) 359-3898Email: [email protected]: https://compare-autoinsurance.Org/ SOURCE: Compare-autoinsurance.Org View source version on accesswire.Com:https://www.Accesswire.Com/595055/What-Are-The-Main-Benefits-Of-Comparing-Car-Insurance-Quotes-Online View photos