CTBT: Science and Technology Conference 2025 - SnT2025

Session

O4.1 Performance Evaluation of the International Monitoring System

O4.1

10 Sept 2025, 13:30

Prinz Eugen Saal

Conveners

O4.1 Performance Evaluation of the International Monitoring System

• Paola García (Chilean Nuclear Energy Commission)
• ELOISA DE VILLALOBOS

791. The Influence of the Auxiliary Station Lembang Indonesia on Earthquake Hypocenter Relocation Results for Earthquakes on Java Island (O4.1-791)

Yusuf Haidar Ali (Indonesian Agency for Meteorology, Climatology and Geophysics (BMKG))

T4.1 Performance Evaluation of the International Monitoring System

Oral

The auxiliary seismic station AS40 in Lembang, part of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) network, is also registered as a seismic monitoring station in Indonesia under the code IA LEM. In addition to its primary role in monitoring nuclear events, this station is used for earthquake location determination. This study relocated earthquake hypocenters using the HypoDD...

407. Tracking of fine scale infrasound IMS network performances in near real time (O4.1-407)

Mr Julien Vergoz (Commissariat à l’énergie atomique et aux énergies alternatives (CEA))

T4.1 Performance Evaluation of the International Monitoring System

Oral

Global scale infrasound observations confirm that the detection capability of the International Monitoring System (IMS) infrasound network deployed to monitor compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT) is the most variable among the three waveform technologies. The time- and space-dependent dynamics of the different atmospheric layers explain the typical diurnal and...