Historical Seismograms - Evidence from the AD 2000 Izu Islands ...

368 J. Vadk and V. HandFigure 5. Position and shape of fields of maximum intensities for disastrous earthquakesobserved in Ecuador from 1929 to 1958 (Nos. 6-12 in Table 1) in the pattern ofthe seismically active fracture zones (Figure 2); epicenter of No. 23 in southern Colombiais denoted by a cross.a2 w 80 78 762N024sFigure 6. Position and shape of fields of maximum intensities for disastrous earthquakesobserved in Ecuador from 1961 to 1980 (Nos. 13-18 in Table 1) in the pattern ofthe seismically active fracture zones (Figure 2).