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Geoenvironmental Disasters
Fig. 1 | Geoenvironmental Disasters

Fig. 1

From: Regional zonation based on seismic vulnerability using local site effect analysis and potential damage to the city of Medan (North Sumatra, Indonesia) due to earthquake

Fig. 1

Study area and the measurement locations. a Seismicity map of Medan City, North Sumatra, Indonesia for the period of 1907–March 2020. Circles represent earthquake epicenters with magnitudes and scales with circle sizes. Color represents earthquake depths (see legend). The red star depicts the epicenter of the 16 January 2017 M5.2 earthquake. Black lines indicate active tectonic structure. The inset shows the location of Northern Sumatra. b The location of site measurements in Medan City, North Sumatra. Black dots are for MASW (multichannel seismic analysis surface wave), while blue inverted triangles are for SPAC (spatial autocorrelation) analysis

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