Description
E-poster session with display of each e-poster on an assigned touchscreen
The Global Volcanism Program (GVP) includes comprehensive list of the 1281 Earth's active volcanoes and their eruptions over the last 12,000 years. In this work, we used the web-based GVP database of the Smithsonian Institute to correlate detections from the International Monitoring System (IMS) infrasound network in the period 2011-2020. According to GVP data, 360 eruptions (or confirmed...
The Standard Screened Event Bulletin (SSEB) from the IDC Product of the CTBTO provides a detailed and accurate record of global seismic activity, serving as a key tool for analyzing tectonic patterns and studying significant events. This study focuses on global seismicity recorded during the year 2024, ***emphasizing the identification of events with a magnitude greater than Mw: 4,...
The explosive fragmentation of large meteoroids is one of the most significant sources of infrasonic waves. In the absence of atmospheric nuclear tests since 1980, bolide explosions have become key infrasound sources for calibrating and testing the instrument sensitivity of the International Monitoring System (IMS). Moreover, detecting meteoroid explosions with infrasound arrays is crucial for...
This paper presents a detailed analysis of 12 global megatrends — including technological advancements, climate change and sustainability, energy transition, demographic shifts, migration flows, the circular economy, smart cities and urbanization, economic restructuring, cybersecurity threats, health and wellness advancements, changes in consumer behavior, and geopolitical and strategic shifts...
In this study, we present the assessment of the hypocenter location and the dissemination information in the Indonesia Tsunamy Early Warning system (INATEWS), Indonesia. The determination of accurate hypocentral parameters is crucial in seismic monitoring and early warning. In this study, we present the earthquake parameters computed by SeiscomP from the January 2020 to December 2024 scale for...
The CTBTO maintains a global network of monitoring stations with air filtering equipment to detect radionucleotide signatures. These air filters also pick up plant, animal and microbial DNA that has been scattered on the wind. This environmental DNA (eDNA) can be profiled to catalogue species, providing the opportunity to monitor ecosystem changes and track biodiversity at an unprecedented...
The International Monitoring System (IMS) is deployed at locations around the world, allowing for potential linkages to other data streams. One example of this is the correlation between radionuclide data and climate phenomena (e.g. monsoons). Due to the varying climate conditions, the IMS is well positioned to investigate potential signatures for climate change indicators through the...
The northeast monsoon (NEM) is an annual natural phenomenon in Malaysia, typically occurring from October to March. During this period, strong winds driven by two significant surges — the easterly surge and the meridional surge — bring heavy rainfall, often leading to severe flooding that can result in property damage and casualties. This study utilizes eight years of data (2011–2018) from...
The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) faces evolving challenges in its mission to monitor and verify nuclear-test-ban compliance due to the intensifying effects of climate change and the increasing frequency of severe natural disasters. The CTBTO's International Monitoring System (IMS) must now contend with heightened environmental noise, data anomalies and system...
The oceans are filled with acoustic waves, which are trapped in a low-velocity layer at about 1 km water depth. The sound speed of these waves strongly depends on the temperature. An increase in temperature will lead to an increase in the sound speed and hence shorter travel times. IMS hydro-acoustic stations measure these waves continuously and travel times can be obtained through the cross...
The development of a radionuclide measurement network can present many challenges including decisions regarding sensor location, sensor types, deployment, data flow, analysis and interpretation. Pacific Northwest National Laboratory (PNNL) with support of the Ukraine Task Force (UTF) of the National Nuclear Security Administration (NNSA) and many partners is working to create a radionuclide...
As part of its commitment to the Comprehensive Nuclear-Test-Ban Treaty (CTBT), the Philippines started the operation of its radionuclide station RN52 at Tanay in 2005 under the International Monitoring System (IMS). The station can detect not only anthropogenic radionuclides which may indicate existence of nuclear explosions, but also natural radionuclides such as Lead-212. Lead-212 is...
Nuclear explosion risk is real and needs initiative action. Due to the extremely dangerous situation, global communities need to be understood, educated, aware and ready to respond to the insecurity and CTBTO frameworks, including supporting nonproliferation and arms control programs. For this reason, we propose the nuclear disaster prevention online lecture series delivered by well-performing...
The method of tsunami splitting is applied to analyse tsunami hazards along the eastern Indian coastal regions, specifically the states of West Bengal, Odisha, Andhra Pradesh, Tamil Nadu, the Andaman and Nicobar Islands, as well as Sri Lanka. This approach involves segmenting the tsunami event into distinct phases—deformation, propagation, and inundation—and simulating each phase using Finite...
Climate change is a matter of both geopolitical and regional concern. In order to address it comprehensively, Global Climate governance is a crucial issue that requires both scientific and practical attention. Climate change governance is an emerging domain that has a complex relationship with public and state administrative structures. In recent times the Comprehensive Nuclear-Test-Ban Treaty...
How can Artificial Intelligence (AI) enhance the CTBT’s verification regime and contribute to confidence-building among States Parties, while promoting science diplomacy to achieve universalization and entry into force? This paper explores the potential of Artificial Intelligence to revolutionize the Comprehensive Nuclear-Test-Ban Treaty (CTBT) verification regime and foster international...
Eruptions at continental basaltic volcanoes, the dominant mode of volcanism on Earth, can take and combine various forms, including lava lake, lava flows and fountaining, explosions or structural collapses. Aside from a few well-instrumented cases, accurately reconstructing their precise processes and chronology is hampered by the lack of detailed visual observations in space and time....
Integration of sustainable energy practices and nuclear monitoring policies offers a pathway for addressing regional disparities in technology access, scientific participation and policy development. Kenya's advancements in geothermal energy in atmospheric and subsurface monitoring provides a model for aligning sustainable energy initiatives with the Comprehensive Nuclear-Test-Ban Treaty...
The National Nuclear and Radiological Emergency Plan (NNREP) outlines Nigeria’s strategy for a coordinated and timely response to radiation emergencies, integrating local, national and international efforts to protect public and worker safety. The CTBTO’s International Monitoring System (IMS) and International Data Centre (IDC) provide advanced technologies and data for detecting nuclear...
The Plurinational State of Bolivia has been striving to establish a seismic building code for over 12 years. While some building guidelines on 'how to build' were previously developed, they did not comprehensively address critical aspects related to seismic hazard. Although Bolivia experiences moderate seismic activity, destructive earthquakes have occurred with recurrence intervals of...
On 25 August 2024, around 6h50 UT, Bolide impacted the Earth atmosphere over South Africa. This event was recorded at some IMS infrasound arrays in Southern Africa. Data analysis were performed using GTK-PMCC software (CTBTO) based on PMCC method (Y. Cansi 1995). A pass-band frequency between 0.1 Hz and 4 Hz is applied to detect the source. As results from infrasound station I47ZA, azimuth is...
The Chemical Weapons Convention and the Comprehensive Nuclear-Test-Ban Treaty were both adopted in the early to mid-1990’s, a time of renewed hope for global disarmament and non-proliferation efforts. In the decades since, both implementing organizations for these instruments – the Organisation for the Prohibition of Chemical Weapons (OPCW) and the Preparatory Commission for the Comprehensive...
At KNDC, data from Makanchi's PS23 array revealed a large number of similar events with sources in the area of large glaciers in Tien-Shan. All events are in the 185-190 back-azimuth range at a distance of 550 km south of the station. The size of the epicentre area were about 90x90 km. Daily and seasonal variations in the number of events recorded were revealed, and their energy and magnitude...
Treaty monitoring technologies, including radionuclide monitoring technologies, are advancing rapidly, becoming increasingly robust and cost-effective. Various nations are investing in these technologies, creating national networks with a higher density of sensors compared to the International Monitoring System (IMS). These denser networks offer enhanced precision in characterizing...
Nuclear explosions have enormous environmental impacts on the planet and its systems, which intersect with climate change in a variety of ways. Analogous to climate change, these impacts and their social repercussions are unequally distributed. The importance of education, effective science communication and an intersectional social understanding are paramount to building public...
Earthquake is one of the foremost disasters which cause severe disruption of life and property. In Bangladesh, earthquake is considered as hidden disaster as the country is tectonically located at the junction of three tectonic plates (Eurasian, Burma and Indian plate). To understand the potential risks of the deadly catastrophe in Bangladesh, an earthquake distribution map was prepared using...
The International Monitoring System (IMS) offers a vast amount of data that can advance scientific research beyond treaty verification. Here, observations of beryllium-7 (Be-7) that are made by particulate radionuclide IMS stations are considered to study atmospheric processes. Be-7 is a cosmogenic radionuclide that is produced mainly in the upper troposphere and lower stratosphere....
Seismic events in South Africa are recorded by the national seismograph network and located with the SeisComp software. Seismic events include earthquakes, mining-related events associated with deep gold and platinum mining, and explosions that occur in opencast mines. Suspected explosions are identified through their geographical association with opencast mines and the time-of-day. From April...
RSMC Beijing became one of the world’s eight Regional Environmental Emergency Response Centers by the end of 1996. Since 1997, it has provided nuclear incident response exercises for the IAEA under the WMO framework and has offered source reconstruction services for CTBTO’s IMS monitoring stations since 2003. The center’s current environmental emergency response system is based on China’s...
The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) processes data from the International Monitoring System (IMS), which, though primarily used for nuclear explosion detection, also has valuable applications in scientific and civil domains. As the effects of climate change become more evident each day, it is crucial to keep the topic alive and continue exploring ways IMS data can...
This study examines the evolution of radionuclide detections over time at eight stations within the CTBTO IMS network: SEP63 and SEX63 (Stockholm, Sweden), RUP61 and RUX61 (Dubna, Russian Federation), DEP33 and DEX33 (Schauinsland, Germany), and NOP49 and NOX49 (Spitsbergen, Norway). Data covering the period of 2021 to 2024 were analysed and compared using the RNToolkit software. The...
The European-Mediterranean Seismological Centre (EMSC) monitors earthquakes on a global scale by merging the parametric data shared in real time by 113 networks; this represents almost 9 500 seismic stations, 5 million arrival times and 114 000 earthquakes (median location time: 15 minutes). The presence of the main global networks (e.g. NEIC, GEOFON, etc.) and numerous national networks among...
According to the scarce journalistic records, scientific reports and the testimony of some inhabitants in Paraguayan territory, volcanic activity in the Andes Mountain Range has had repercussions in Paraguayan territory. This refers to the dispersion of tephra originating from different volcanic conduits of the subduction zone type in the Pacific Ring of Fire located in the Chilean Andean...
A study examined seismic hazard in Thailand's central plain, characterized by a thick quaternary basin. Unconsolidated sediments may amplify seismic ground shaking, potentially increasing structural damage. The research resulted in a fundamental frequency map derived from HVSR analyses at 149 microtremor sites. A Vs30 map was subsequently generated using HVSR inversion methods, alongside a...
Jordan's seismicity is heavily influenced by the Dead Sea Transform Fault (DST), a significant tectonic boundary between the Arabian and African plates, posing the highest seismic risk to the region. Historical earthquakes, including those in 749 AD and 1033 AD, highlight this threat. Other regional sources, such as the Zagros Fold and Thrust Belt in Iran, the Red Sea Rift and the Cyprus Arc,...
Nearly three decades since the establishment of the Comprehensive Nuclear-Test-Ban Treaty (CTBT), rapid developments in artificial intelligence (AI), autonomous systems, and global communication and data networks are radically changing the technological landscape in which the CTBTO operates. Concurrently, geopolitical conflicts have impacted states’ trust in international institutions and...
The Tsunami Programme of the UNESCO-Intergovernmental Oceanographic Commission (UNESCO-IOC) coordinates tsunami warning and mitigation activities around the globe. As of today, 21 National Tsunami Warning Centres (NTWC) in 20 CTBT Signatory States benefit from the agreement between the CTBTO PrepCom and UNESCO allowing transmission of real-time IMS data to NTWCs recognized as such by UNESCO....
Proponents of nuclear deterrence generally see it as a stabilizing factor in state security relations. However, it might have contributed to the destabilization of climatic security instead. Today, climate crises are affecting states in multiple ways and there is a developing census that it is becoming a key security threat to humanity. However, there is little understanding of how the...
The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) operates an advanced network system of the International Monitoring System (IMS) designed to detect nuclear explosions. Beyond its primary mission, the IMS's network of seismic, infrasound, hydroacoustic, and radionuclide stations provides invaluable data that can be used by researchers for climate change studies. This presentation...
This study assesses the need for an infrasound station facility in Indonesia, with Ujung Kulon, West Java as one of the potential sites. Indonesia relies on infrasound data from nearby countries limiting independent monitoring of detail events. Data from IMS stations like I06AU, I39PW and others provide insights, however are insufficient for comprehensive monitoring.
The installation of an...
This study examines the profound psychological effects of nuclear weapons proliferation on global populations. The constant threat of nuclear conflict creates a pervasive sense of fear and anxiety, impacting mental health and societal stability. Historical instances, such as the Cold War, highlight the long-term psychological stress experienced by individuals living under the shadow of...
Global Climate Governance is an emerging arena of policy-making with the primary objective of formulating practical alternatives to deal with the adverse consequences of climate change along with creating an agile mechanism that is adequate from a scientific perspective and also encourages universal participation. Countries are experiencing frequent natural disasters due to climate change,...
The Mozambique Channel (MC), which lies within the South West Indian Ocean (SWIO) Basin, experiences significant tropical cyclone activity every year, mostly during austral summer. These tropical cyclones (TCs) are known to generate strong microbaroms in their wake which are recorded at the International Monitoring System (IMS) infrasound stations. In this study, we use the microbaroms...
The history of earthquakes in the southern region of Java Island has seen large earthquakes with Mw above 7.0, including earthquake and tsunami events in 1921 (Mw 7.6), 1994 (Mw 7.6), 2006 (Mw 7.7) and 2009 (Mw 7.3) which occurred along the Java subduction. The location of the tsunami modeling study with coordinates 6,750 LS - 7,499 LS and 106,249 BT - 106,750 BT. The study was conducted...
Bali Island is one of the areas in Indonesia that is categorised as a tsunami-prone area due to the existence of the Java Megathrust in the southern segment of Bali, which holds a maximum magnitude of up to M 9.0, which can trigger a tsunami. This study aims to model tsunami wave heights and wave arrival times based on the maximum earthquake scenario in the southern Bali megathrust zone. The...
The World Meteorological Organization (WMO) supports its Members and related international organizations such as the IAEA and the CTBTO regarding nuclear incidents and accidents and the determination of possible source regions related to anomalous, treaty-relevant radionuclide measurements. To respond to nuclear emergencies 24/7, Ten WMO Members WMO Integrated Processing and Prediction System...
As part of the Xenon and Environmental Radionuclide Analysis at Sizewell (XENAS) experimental campaign, a UK-based Pressurised Water Reactor (PWR) nuclear power station (Sizewell B) has provided access allowing measurement of several radionuclide monitoring process routes. This work aims to provide an overview of the experiment, discuss its motivations, present the results obtained to date and...
