Development of a University Seismic Network in Metropolitan Lima, Peru
Session: Strong-Motion Data Processing and Dissemination: State-of-the-Art and Outlook [Poster]
Type: Poster
Date: 4/23/2021
Presentation Time: 11:30 AM Pacific
Description:
In high seismic hazard zones, such as Metropolitan Lima, the development of regional and local seismic networks has always been a key aspect for the evaluation of path and site effects. In this regard, the National University of Engineering (UNI), through the Japan Peru Center for Earthquake Engineering Research and Disaster Mitigation (CISMID), has been working on this matter with the implementation of the CISMID’s Accelerometer Network (REDACIS).
Starting with 13 RION analog equipment in 1988, which were replaced by digital Kinemetrics accelerometers in the early 2000s, REDACIS has collected important data related to the latest events in Peru, such as Atico (2001) and Pisco (2007) earthquakes. In recent years, and with funding from the Ministry of Economy, CISMID has enhanced its capabilities through the establishment of CISMID’s Earthquake Engineering Observation Center (CEOIS) and the acquisition of 50 RefTek 130-SMA accelerometers to be deployed throughout Metropolitan Lima. At this time, 35 of these equipment are already installed in schools, universities, municipalities and health facilities which send continuous data to the CEOIS server by means of TCP/UDP protocols. In case of a seismic event, raw data is remotely acquired from the server and processed by REDACIS’s team, in order to generate reports containing relevant information, such as values of peak ground acceleration, Fourier and response spectra. One of the last important events that our team has dealt with was the Lagunas earthquake (2019), which was recorded in 24 stations. The information was shared with the public through social networks and the official CISMID website.
Among the current and planned improvements, within a project funded by the World Bank and Fondecyt-Peru, are installing the remaining accelerometers in soil deposits with diverse geomorphological conditions in the capital, implementing SeisComp software and SeedLink protocol for a more efficient acquisition system and obtaining seismic intensity maps by means of the use of amplification factors and simple Kriging interpolation schemes.
Presenting Author: Carlos Eduardo Gonzáles Trujillo
Student Presenter: No
Authors
Carlos Eduardo Gonzáles Trujillo Presenting Author Corresponding Author cgonzalest@uni.edu.pe National University of Engineering, Peru |
Luis Fernando Lazares La Rosa f_lazares@uni.edu.pe National University of Engineering, Peru |
Zenón Aguilar Bardales zaguilar@uni.edu.pe National University of Engineering, Peru |
Jorge Elías Alva Hurtado jalvah@uni.edu.pe National University of Engineering, Peru |
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Development of a University Seismic Network in Metropolitan Lima, Peru
Category
Strong-motion Data Processing and Dissemination: State-of-the-Art and Outlook