Unraveling landslide failure mechanisms with seismic  signal analysis for enhanced pre-survey understanding

Chang, Jui-Ming; Yang, Che-Ming; Chao, Wei-An; Ku, Chin-Shang; Huang, Ming-Wan; Hsieh, Tung-Chou; Hung, Chi-Yao

doi:10.5194/nhess-25-451-2025

Articles | Volume 25, issue 2

https://doi.org/10.5194/nhess-25-451-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-25-451-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 2

Research article

|

03 Feb 2025

Research article |

| 03 Feb 2025

Unraveling landslide failure mechanisms with seismic signal analysis for enhanced pre-survey understanding

Jui-Ming Chang, Che-Ming Yang, Wei-An Chao, Chin-Shang Ku, Ming-Wan Huang, Tung-Chou Hsieh, and Chi-Yao Hung

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Oct 2024	66	28	60	154
Nov 2024	100	20	96	216
Dec 2024	50	28	102	180
Jan 2025	36	20	86	142
Feb 2025	388	56	10	454
Mar 2025	171	41	4	216
Apr 2025	119	32	52	203
May 2025	130	19	100	249
Jun 2025	165	24	21	210
Jul 2025	145	40	8	193
Aug 2025	190	41	3	234
Sep 2025	495	51	9	555
Oct 2025	154	42	3	199
Nov 2025	177	75	6	258
Dec 2025	215	106	12	333
Jan 2026	166	61	23	250
Feb 2026	140	33	15	188
Mar 2026	117	79	12	208
Apr 2026	100	83	3	186
May 2026	20	8	0	28

Cumulative views and downloads (calculated since 12 Jun 2024)

Month	HTML	PDF	XML	Total
Jun 2024	82	30	10	122
Jul 2024	88	12	4	104
Aug 2024	100	32	10	142
Sep 2024	78	18	0	96
Oct 2024	66	28	60	154
Nov 2024	100	20	96	216
Dec 2024	50	28	102	180
Jan 2025	36	20	86	142
Feb 2025	388	56	10	454
Mar 2025	171	41	4	216
Apr 2025	119	32	52	203
May 2025	130	19	100	249
Jun 2025	165	24	21	210
Jul 2025	145	40	8	193
Aug 2025	190	41	3	234
Sep 2025	495	51	9	555
Oct 2025	154	42	3	199
Nov 2025	177	75	6	258
Dec 2025	215	106	12	333
Jan 2026	166	61	23	250
Feb 2026	140	33	15	188
Mar 2026	117	79	12	208
Apr 2026	100	83	3	186
May 2026	20	8	0	28

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Short summary

The study on the Cilan landslide (CL) demonstrates the utilization of seismic analysis results as preliminary data for geologists during field surveys. Spectrograms revealed that the first event of CL consisted of four sliding failures accompanied by a gradual reduction in landslide volume. The second and third events were minor toppling and rockfalls. Then combining the seismological-based knowledge and field survey results, the spatiotemporal variation in landslide evolution is proposed.