# Taiwan & Global Significant Earthquake Tracker

> This site combines real-time reporting from Taiwan's Central Weather Administration (CWA) and the U.S. Geological Survey (USGS), providing significant earthquakes from the past 7 days — M4.0+ in Taiwan and M6.0+ worldwide — with depth and tsunami-warning information.

## Data Sources
- [地震觀測與海嘯警報發布標準](https://www.cwa.gov.tw): 交通部中央氣象署地震測報中心
- [Real-time Earthquake Feeds & Global Seismology](https://earthquake.usgs.gov): 美國地質調查局 (USGS)
- [防震避難指引與防災整備須知](https://www.nfa.gov.tw): 內政部消防署

## Related Pages
- [Taiwan Real-Time UV Index](https://health.j172.tw/en/tools/uv)
- [Taiwan Real-Time Air Quality Index (AQI)](https://health.j172.tw/en/tools/aqi)
- [全民防災物資：緊急避難包與居家儲備計算機](https://health.j172.tw/tools/emergency-supplies)
- [全球動態地球](https://health.j172.tw/tools/global-watch)

## Frequently Asked Questions (FAQ)
- Q: How often is the earthquake data updated?
  A: This site's earthquake data automatically syncs every 10 minutes with the latest reports from Taiwan's Central Weather Administration (CWA) and the U.S. Geological Survey (USGS), with EMSC and HKO as supplementary cross-check sources.
- Q: Why are some earthquakes under M6.0 shown?
  A: Events in Taiwan of M4.0 or greater that the Central Weather Administration has issued a report on are shown individually; outside Taiwan, the focus is on globally significant earthquakes of M6.0 or greater, which release enormous energy and affect a wide area, making them a priority for real-time disaster-preparedness reference.
- Q: What does the tsunami-warning tag mean?
  A: When a reporting agency issues a tsunami warning or tsunami watch advisory, the system automatically flags the card with a red tsunami-alert indicator, prompting coastal residents to take precautions.