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Earthquake Early Warning System for Algarve




By TPN / Lusa, in Algarve, News · 09-04-2021 01:00:00 · 0 Comments An early warning system for earthquakes, including earthquakes in the Atlantic, will be installed in the Algarve, with the country’s first four seismometers buried on Depth of 30 meters in the Sagres area.

This is an “early warning system to detect earthquakes,” said Murad Bazghoud, a professor of physics and a researcher at the Institute of Earth Sciences, and if they had enough pot, a “tsunami” could come from it. ICT) from the University of Evora (UÉ) to the Lusa News Agency.

The researcher participating in the initiative said that the project “Earthquake Early Warning System (EEWS)” is working to “complete and strengthen” the National Seismic Network of the Portuguese Institute of the Seas and Atmosphere (IPMA).

In a statement, UÉ stated that it is “working to enable the National Seismic Network” by installing an EEWS system, which allows for early warning of earthquakes, “including those generated in the Atlantic region bordering Portuguese territory.

“This alert system is necessary not only for Portugal, but also for Europe,” the Alentejo Academy affirmed.

The aim of the system to be implemented, according to Murad Bazghoud, citing UÉ, is to “detect earthquakes and determine some of their characteristics,” such as location and size, “before the effects of strong earthquakes reach critical areas,” thus allowing authorities to proceed with “protective measures” .

“Seismology is very advanced today,” the researcher told Lusa. “With seismic networks, you can determine the location of an earthquake in almost real time as well as calculate its magnitude.”

When the size of the earthquake approaches nine there may be a tsunami a few meters away but with an earthquake higher than 9 or at 9.5, a tsunami can be catastrophic, and in Portugal, with cities very close to the sea, this means we have seconds or a minute at most to alert the authorities “.

He warned that “early warning is necessary so that the authorities, emergency and security forces can quickly prepare the country for this effect and reduce the damage and consequences.”

Murad Bizhoud explained to Lusa that the national seismic network consists of “surface seismometers” and that the four that are part of the EEWS, which will be installed “in the Sagres region”, in West Algarve, are “the first of their kind installed at a depth in Portugal”, buried “At a height of 30 meters.”

He pointed out that “it will be on public lands, and we already have protocols signed with municipal halls in the western region, and the month of May will be used to dig all wells,” noting that earthquake stations “will be installed in June” and that a depth of 30 meters aims to “avoid interference from all noise.” Surrounding so that seismographs capture a pure signal, to capture earthquakes only.

This installation, he said, is “faster, and as each station is installed, it turns on immediately” and is connected to the ICT-UÉ search unit and the IPMA National Seismic Network.

He emphasized that in order to “create overflow” in the system, and since “seismometers are sometimes saturated in the case of strong earthquakes,” the four stations also include accelerometers on the surface, which “characterize the effectiveness of the movements” of earthquakes.

EEWS is UÉ’s contribution to the EMSO-PT project – European Interdisciplinary Seabed and Water Column Observatory, funded by the Foundation for Science and Technology (FCT), European Commission and Portugal Program 2020.

At EMSO-PT, the researchers aim to create and develop an infrastructure for scientific and technological research in the field of marine sciences and the marine environment, with the aim of “expanding the number of seismic stations on Earth and improving the national seismic monitoring network”, summarized UE.


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