11/7/2022 0 Comments Seismac stations![]() ![]() Raspberry Shakes-cheap plug-and-play seismic stations that require little maintenance-can circumvent many of the problems plaguing the conventional seismic network. “The government had to pay them to stop shooting and robbing so that humanitarian help could go through after the quake.” Raspberry Shake to the rescue “The three main roads out of Port-au-Prince to the provinces are controlled by gangs,” agreed Calais. By 2018, when a magnitude-5.9 earthquake killed 17 people, none of these stations was functional, forcing Haiti’s population to rely on information gathered remotely by the US Geological Survey.Īccording to coauthor and seismologist Anthony Lomax, his impression from Haitian scientists is that a major impediment to a stable seismic network is general lawlessness, ranging from theft of equipment to ransom kidnapping. AdvertisementĪfter the 2010 earthquake, the newly installed conventional seismic network was to be maintained by Haiti’s Bureau of Mines and Energy. (Calais was among the scientists leading the international response after both the 20 earthquakes and a leader of the citizen science initiative.) Two more Raspberry Shakes near the epicenter, unavailable during the main shock because of Internet connectivity issues, were reconnected by their hosts within two hours. Along with two other seismic stations in Port-au-Prince-one at the US embassy and another educational instrument in a local high school-the Raspberry Shake notification came through within a minute of the earthquake, said Eric Calais. One of the Raspberry Shakes installed in 2019 happened to be sited about 21 kilometers from the epicenter, with two more citizen stations near enough to detect the quake. Nevertheless, about 2,500 people lost their lives, 13,000 were injured, and at least 140,000 houses were destroyed or damaged. It ruptured along the same fault zone but in a more rural region, resulting in comparatively fewer losses. The August 2021 event clocked in with a magnitude of 7.2-40 percent more powerful than its 2010 predecessor. In a paper published on Thursday in Science, researchers described using the Raspberry Shake data to demonstrate that this citizen science network successfully monitored both the mainshock and subsequent aftershocks and provided data integral to untangling what turned out to be a less-than-simple rending of the earth. ![]() On the morning of August 14, 2021, amidst a summer of COVID-19 lockdowns and political unrest, another earthquake struck, providing the opportunity to test just how useful these Raspberry-pi powered devices could be. In 2019, seismologists opted to try something different and far less expensive-citizen seismology via Raspberry Shakes. After the devastating event, scientists installed expensive seismic stations around the country, but that instrumentation requires funding, care, and expertise today, those stations are no longer functional. The earth tore at the relatively shallow depth of about 8 miles, toppling poorly constructed buildings.Īt the time, Haiti had no national seismic network. The damage- costing billions of dollars-rendered more than a million people homeless and destroyed much of the region’s infrastructure. Among the most significant seismic disasters recorded, more than 100,000 people lost their lives. On the afternoon of January 12, 2010, a magnitude-7.0 earthquake struck about 16 miles west of Haiti’s capital of Port-au-Prince. ![]()
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