MiDAS Live Stream
A near real-time MiDAS waterfall plot, using a 10-minute time window, is automatically refreshed every 20 seconds on the YouTube channel. Visit this MiDAS Live Stream channel now!
Distributed Acoustic Sensing Data from the MiDAS Site
2024-04-02 Mw7.4 Hualien Earthquake Sequence
The seismic response at the MiDAS site to the 2 April 2024 Mw7.4 Hualien, Taiwan earthquake sequence
was comprehensively recorded by the DAS system, which has been operational since 2022. (see Data & Metadata in the Menu)
Event Map and Catalog
Event data is available from 2024-03-27 to 2024-05-03. Data source: Central Weather Administration, accessible from the GDMS web service system.
DAS Data
The DAS system measures strain rate over a 10 m gauge length, sampled at 4 m intervals along the fiber. The sensing array extends approximately 6.7 km and incorporates 2 boreholes with maximum depth of 700 m. (for details, see MiDAS2024)
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Ma et al., 2024
Broad-band strain amplification in an asymmetric fault zone observed from borehole optical fiber and core
Kuo-Fong Ma, Sebastian von Specht, Li-Wei Kuo, Hsin-Hua Huang, Chen-Ray Lin, Chin-Jen Lin, Chin-Shang Ku, En-Shih Wu, Chien-Ying Wang, Wen-Yen Chang & Philippe Jousset
https://doi.org/10.1038/s43247-024-01558-6
Ku et al., 2026
A Continuous DAS Dataset of the 2 April 2024 Mw 7.4 Hualien, Taiwan Earthquake Sequence from the MiDAS Observatory
Chin-Shang Ku, Kuo-Fong Ma, Wen-Tzong Liang, Hsin-Hua Huang & Chin-Jen Lin
https://doi.org/10.1785/0220260166[Data set] https://pid.depositar.io/ark:37281/k5s4w2602
