An Application Of The Seismic Microzonation To
The Critical Facilities In The City Of Ensenada,
Baja California, Mexico
Author(s)
J. Soares & J. Acosta-Chang
Abstract
Microzonation maps of the soil’s seismic response for the city of Ensenada, Baja
California, Mexico were obtained by means of predictive empirical equations for
the region. By applying damage probability matrices, the expected damage on
the critical facilities of the city was estimated. The maps were elaborated
considering a scenario of earthquake occurrence. A MM = 6.8 earthquake was
proposed to occur in the southern portion of the San Miguel fault. The expected
ground motion for the San Miguel earthquake in the downtown area would reach
maximum accelerations of 135 cm/s 2 , a maximum velocity of 9 cm/s, and an
intensity of VII in the Modified Mercalli scale (MMI). Critical structures and
strategic buildings of significant importance for the city were catalogued, and by
applying the method of Damage Probability Matrices (DPM), the expected
damage on these structures was estimated.
Keywords: seismic microzonation, Ensenada, earthquakes, seismic scenarios.
1 Introduction
Industrial countries have been successful in reducing their seismic risk, whereas
undeveloped countries such as Nicaragua, Guatemala, and El Salvador,
earthquakes have been responsible for losses up to 40% of the natural gross
product (Geohazards International, [1]). The adequate planning and preparedness
for emergencies allow the impacted area to reduce its risks and damages.
Keywords
seismic microzonation, Ensenada, earthquakes, seismic scenarios.
Related Book
Other papers in this volume
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