Figura 4. Spectral ratio graph of the measurement taken at the point in photos 8 and 9.
Photos 10 and 11. Two views of a collapsed building where a seismic noise measurement was carried out (damage level 4-5). Situation in figure 3.
Figure 5. Spectral ratio graph of the measurement taken at the point in photos 10 and 11.
Photos 12 and 13. Seismic noise tests on a street adjacent to the location of the previous photos. The buildings appeared intact. Situation in figure 3.
Figure 6. Spectral ratio graph of the measurement taken at the point in photos 12 and 13.
Photos 14 and 15. Building with crushed pillar. Detail of the damage. The intensity appears to be higher than grade VIII. Situation in figure 3.
Photo 16. Detail of the damage. Situation in figure 3.