Preliminary results from EMERSITO, a rapid response network for site-effect studies

作者: Francesca Pacor , Antonio Fodarella , Antonio Rovelli , Sara Lovati , Giovanna Cultrera

DOI: 10.4401/AG-6153

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摘要: On May 20, 2012, at 02:03 UTC, a Ml 5.9 reverse-fault earthquake occurred in the Emilia-Romagna region, northern Italy, hypocentral depth of 6.3 km (http://iside.rm.ingv.it/), close to cities Modena and Ferrara plain Po River. The epicenter was near village Finale Emilia where macroseismic intensity assessed 7 EMS98 [Tertulliani et al. this issue], while closest accelerometric station, MRN, located less than 20 west-ward Mirandola (Figure 1) recorded peaks ground accelerations about 300 cm/s2 (www.protezionecivile.gov.it/resources/cms/documents/Report_DPC_1_Emilia_EQSd.pdf). mainshock triggered liquefaction phenomena few kilometers eastwards epicenter, around San Carlo. same day, two other shocks 5.1 followed (02:07, 13:18 GMT; http://iside.rm.ingv.it/). 29, 07:00 UTC another 5.8 hit region with 1). Three strong aftershocks afterwards, 5.3 (May 10:55), 5.2 11:00) (June 3, 19:20). For detailed description seismic sequence, see Moretti [2012], Scognamiglio Massa issue. sequence resulted 25 casualties, several whom were among workers many factories that collapsed during working hours, there extensive damage monuments, public buildings, industrial sites, private homes. […]

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