研究摘要
臺灣因位於環太平洋火山地震帶上,同時又處歐亞大陸板塊東南緣與菲律賓海板塊互相衝撞接觸的交界,故不僅是地質構造活躍之處,也是地震頻繁發生的地區,根據中央氣象局的觀測資料顯示,臺灣平均每天約有60次的無感或有感地震,在地震如此密集發生的日常生活中民眾對於地震資訊的掌握將關係到其自身的生命與財產安全,然而即使自1993年中央氣象局完成即時地震監測網的建置,使每年可以觀測到約15,000~18,000次的大量精密地震資料以來,對於歷史地震的相關資訊仍舊只透過表格呈現,不僅無法有效的運用及探索資料,更重要的是如此將每次地震視為單一事件紀錄的方式忽略了每次地震都會伴隨餘震發生的序列關係。
本研究將透過蒐集並整理1991年來發生在臺灣及其近海的地震序列,以互動式的視覺化平台呈現歷史上的地震序列,讓使用者可以理解主震與餘震之間的關係,並透過震源位置、規模、時間及縣市等資料的探索對歷史地震獲得更全面性的瞭解,同時提供簡易的資料輸入格式讓資料得以即時更新,期望藉此概念能充分的發揮現今地震觀測資料的價值。
臺灣因位於環太平洋火山地震帶上,同時又處歐亞大陸板塊東南緣與菲律賓海板塊互相衝撞接觸的交界,故不僅是地質構造活躍之處,也是地震頻繁發生的地區,根據中央氣象局的觀測資料顯示,臺灣平均每天約有60次的無感或有感地震,在地震如此密集發生的日常生活中民眾對於地震資訊的掌握將關係到其自身的生命與財產安全,然而即使自1993年中央氣象局完成即時地震監測網的建置,使每年可以觀測到約15,000~18,000次的大量精密地震資料以來,對於歷史地震的相關資訊仍舊只透過表格呈現,不僅無法有效的運用及探索資料,更重要的是如此將每次地震視為單一事件紀錄的方式忽略了每次地震都會伴隨餘震發生的序列關係。
本研究將透過蒐集並整理1991年來發生在臺灣及其近海的地震序列,以互動式的視覺化平台呈現歷史上的地震序列,讓使用者可以理解主震與餘震之間的關係,並透過震源位置、規模、時間及縣市等資料的探索對歷史地震獲得更全面性的瞭解,同時提供簡易的資料輸入格式讓資料得以即時更新,期望藉此概念能充分的發揮現今地震觀測資料的價值。
Abstract
Taiwan is on the Pacific Ring of Fire and at the convergence of the Philippine Sea plate and the Eurasian Plate. It is not only a geological structure active zone but also a seismically active zone. According to the Central Weather Bureau observations show that Taiwan has an average of 60 times felt earthquake or uninductive earthquake every day. The earthquake occurs densely in daily life, to grasp the seismic information will be related to the masses lives and their property safety. Nowadays, its mainly access is from the Central Weather Bureau. From the 1993, the Central Weather Bureau built the immediate earthquake monitoring network, so that can be observed every year to about 15,000 to 18,000 seismic data. But the historical earthquakes information is still only through the form presented, it can not effectively use and explore data. More importantly, each earthquake is treated as a single event and it ignores the relationship between each sequence will be accompanied by an earthquake aftershock occurred.
In this study, we try to collect and analyze the earthquake sequence occurred in Taiwan and its offshore from 1991, and use an interactive visualization platform for presenting the history of earthquake sequence. Let user can have a more comprehensive understanding of the relationship between the main shock and aftershocks through explore the epicenter, magnitude, time, country, etc. and we will provide a simple data entry form to make real-time updates. Hoping to take this concept to promote the value of today’s seismic data.
Taiwan is on the Pacific Ring of Fire and at the convergence of the Philippine Sea plate and the Eurasian Plate. It is not only a geological structure active zone but also a seismically active zone. According to the Central Weather Bureau observations show that Taiwan has an average of 60 times felt earthquake or uninductive earthquake every day. The earthquake occurs densely in daily life, to grasp the seismic information will be related to the masses lives and their property safety. Nowadays, its mainly access is from the Central Weather Bureau. From the 1993, the Central Weather Bureau built the immediate earthquake monitoring network, so that can be observed every year to about 15,000 to 18,000 seismic data. But the historical earthquakes information is still only through the form presented, it can not effectively use and explore data. More importantly, each earthquake is treated as a single event and it ignores the relationship between each sequence will be accompanied by an earthquake aftershock occurred.
In this study, we try to collect and analyze the earthquake sequence occurred in Taiwan and its offshore from 1991, and use an interactive visualization platform for presenting the history of earthquake sequence. Let user can have a more comprehensive understanding of the relationship between the main shock and aftershocks through explore the epicenter, magnitude, time, country, etc. and we will provide a simple data entry form to make real-time updates. Hoping to take this concept to promote the value of today’s seismic data.