近年來，網際網路的普及以及各種社群網站的興盛，使得無論人們身在何處，無時無刻不能夠在社群網路上表達自己的想法，無論是資訊傳播、經驗分享以及意見交流，社群平台上的互動已經逐漸變成人們生活中的一部份，而這些充斥在社群平台上的即時資訊，也使得社群媒體成為蘊含各種最新消息的寶庫，而隨著社群網站的演進以及功能的增加，除了文字外人們更可以透過各種的多媒體，以更豐富的方式傳達內容。在災難發生時，資訊的掌握對於相關單位解析災難的相關情況以及制定後續行動非常重要，此時社群網路中的豐富即時資訊就可以扮演一個快速獲取資料的來源，藉由解析社群媒體上的資訊，可以即時地獲得第一手資訊，專家更可以藉由分析照片或影片等多媒體或是字裏行間中隱含的資訊瞭解到現場的情況，制定更加完備的因應對策。

本研究以2016年高雄美濃地震為例，透過探索研究地震期間在推特上交流的資訊，包含發文內容、附加圖片以及發文者、發文時間、發文語系以及轉推等後設資訊（meta data），瞭解在地震相關的貼文資訊中，附圖的貼文較未附圖的貼文更加的容易被轉推，而後本研究著重在貼文中的附圖，研擬使用圖像辨識的方法，賦予推特上的圖片物件標籤，後以標籤共現嘗試將跟地震相關的圖片分群，確認此方法分析圖片的結果以及其限制，最後回到發佈的貼文本身資訊，本研究分析了地震相關熱門貼文的發布者身份，藉由爬梳推特上的使用者資訊，瞭解到除了台灣本身，包含日本、中國、美國、英國、俄羅斯等多國媒體都有報導的相關資訊，且可能由於推特中日本的使用者較多，且日本位置距離台灣較相近，因此熱門貼文的發文者大多是使用日文的使用者。

Recently, thanks to various social media platforms and availability of mobile web, people have got used to interactive through the internet anywhere anytime. Activities on social media have become everyone's routine, such as searching or sharing information and communication. In the meanwhile, these activities make social media platforms a treasure for getting information. This boundless, real-time information strongly connected to our real life, which means, by locating the information of some position and moment, we are able to analyze specific events of the real world. This feature is especially important at analyzing disasters. At the beginning of disasters, getting information is vital for those authorized. By properly extract messages from social media, experts can realize more and much quickly about the disaster to take the next steps.
This work provides a case study of 2016 Meinong Earthquake happened in Taiwan by exploring the data on Twitter. First of all, this work analyzes the metadata of tweets and show that tweets with images are more likely to be retweeted. Then, after using the computer vision services to label the images, this work provides the results and resistance of using label co-occurrence to cluster images. In the end, by crawling the user information of popular tweets' publisher, we can realize that besides the media of Taiwan, there are also media from other countries caring about this disasters. Moreover, we also know that most personal user publisher of popular tweets use Japanese. The reason might be that Japanese users are the second most in Tweet and location of Japan is relatively near Taiwan than other occidental countries.

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