Modelling the seismic response of the Mýtina maar volcanic structure

Earth, Planets and Space

Table 2 Models’ geometry and resulting resonant frequencies and amplification levels: radius of sediments; thickness of sediments; radius of breccia; thickness of breccia; \({f}_{0}^{X}\), \({f}_{0}^{Y}\), \({f}_{0}^{Z}\) the fundamental frequency at components X, Y, Z; \({A}_{0}^{X}\), \({A}_{0}^{Y}\), \({A}_{0}^{Z}\)— amplification levels (SRSR) for the components X, Y, Z at the corresponding resonance frequencies (\({f}_{0}^{X}\), \({f}_{0}^{Y}\), \({f}_{0}^{Z}\)). See Fig. 5 for the geometry of the models. Observed data marked with an abbreviation: obs

Model	Sediments rad. (m)	Sediments thick. (m)	Breccia rad. (m)	Breccia thick. (m)	\({f}_{0}^{X}\)(Hz)	\({f}_{0}^{Y}\)(Hz)	\({f}_{0}^{Z}\)(Hz)	\({A}_{0}^{X}\)	\({A}_{0}^{Y}\)	\({A}_{0}^{Z}\)
1	100	100	200	300	1.88	1.89	2.20	83	76	30
2	100	100	200	800	1.81	1.83	2.00	72	63	22
3	200	100	300	150	1.73	1.74	2.00	66	60	12
4	200	100	300	300	1.62	1.62	1.87	56	50	18
5	200	100	300	800	1.52	1.52	1.68	43	37	18
6	100	100	160–200	800	1.83	1.88	2.05	80	70	24
7	100	100	160–200	2000	1.82	1.87	2.04	78	60	24
8	100	100	160–200	800	1.85	1.91	2.10	82	70	30
9	100	100	160–200	800	1.85	1.91	2.10	35	31	20
obs					1.83	1.91	1.83	23	25	6