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Progress in Earth and Planetary Science
Fig. 3 | Progress in Earth and Planetary Science

Fig. 3

From: Time difference between the 1854 CE Ansei–Tokai and Ansei–Nankai earthquakes estimated from distant tsunami waveforms on the west coast of North America

Fig. 3

Amplitude spectrums for the observed waveforms including the both Ansei–Tokai and Ansei–Nankai tsunami events (from 3 am 23 December until 7 am 26 December) at the San Francisco and San Diego tide gauge stations. Portions of the energy band removed by application of the low- and high-bandpass filters (cut-off periods of 16 and 128 min, respectively) are shaded gray

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