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The current status and challenge of the CWA earthquake catalog

Seismological Center, Central Weather Administration

2024.01.30 @ IES SINICA

Da-Yi Chen

交通部中央氣象局 Central Weather Bureau

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    • Seismic network in CWA
    • Seismicity in Taiwan
    • Completeness of the earthquake catalog
    • New approach for data processing
    • An example for the 0129 M5.2 earthquake
    • Future work

Contents

交通部中央氣象局 Central Weather Bureau

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(550)

Seismic Network

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2023 Seismicity

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Seismicity in Taiwan

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New Approach for Data Processing

Managing Waveform, Metadata, and Event

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New Approach for Data Processing

Managing Waveform, Metadata, and Event

(Woollam et al., 2022)

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New Approach for Data Processing

Post Data Processing and Database supported

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Recent M5.2 Earthquake

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Automatic Determine the Mainshock

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Automatic Determine Earthquake Sequence

UTC Time: 2024.01.27 07:35 ~ 2024.01.29 09:47

260 events

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65 foreshocks

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194 aftershocks

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Magnitude

Frequency

M5~6

1

M4~5

1

M3~4

18

M2~3

98

M1~2

106

M0~1

35

交通部中央氣象局 Central Weather Bureau

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    • Test and modify the new approach to complete the earthquake catalog.
    • Integrate other approached to the SeisComP.
    • Complete the earthquake catalog.
    • Unify the earthquake magnitude.
    • Review the historical earthquake data.

Future Work

(Huang et al., 2023)

IPFx method

(Yamada and Chen, 2022)

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Thank you for your listening.

交通部中央氣象局 Central Weather Bureau