Published Paper: Capturing Volcanic Lamb Waves and Blast Yields with Netatmo Weather Networks (ESS Open Archive)
Explosive volcanic eruptions generate powerful atmospheric Lamb waves—acoustic-gravity waves trapped in the planetary boundary layer that travel horizontally across the globe at sound speed. Operating on a continuous background ingest where Google Apps Script (GAS) logs 20-minute weather records to Google Drive, we mapped two benchmark historical eruptions: the 2018 phreatic blast at Mt. Kusatsu-Shirane and the 2018 magmatic explosion at Mt. Shinmoedake. We framed these events within first-principles continuum mechanics inside the Antigravity CLI environment powered by Gemini and the autonomous R&D framework ** tanaike-lab**. Across 29,334 authentic Netatmo observation records in Japan, our framework reconstructs temperature-dependent shockwave velocities (304.38 m/s in sub-zero winter air and 313.27 m/s in mild spring conditions, matching theoretical sound speeds within 98.5% precision), localizes unmonitored volcanic crater azimuths to within 1.78 degrees, quantifies explosive yields (178.8 to 1,041.1 tons of TNT equivalent), and delivers
Conventional volcanic monitoring infrastructures (such as specialized infrasound microphones and seismographs operated by government agencies and global nuclear monitoring treaties) operate under a severe spatial limitation: observation stations are separated by 100 to 500 kilometers. This extreme spatial sparsity creates massive blind zones, suffers from severe spatial aliasing, and leaves isolated sensors vulnerable to wind turbulence.
To overcome the spatial aliasing of sparse government arrays, we turn to crowdsourced consumer IoT barometers. By treating thousands of residential Netatmo stations across Japan as a continent-scale acoustic antenna (totaling 29,334 authentic observation records), we demonstrate that balcony-mounted pressure sensors can provide 2.5 to 15 minutes of advance warning before volcanic shockwaves and ash strike downstream urban centers.
This research project advanced through an integrated, four-stage research workflow: combining background cloud archiving in Google Drive via Google Apps Script, historical event mapping across past volcanic eruptions, deductive physical theory construction, and Gemini AI multi-agent pattern mining inside the Antigravity CLI terminal environment guided by the AI Co-Researcher framework ** tanaike-lab**.
【Academic Note】: The physical models, data interpretations, inferences, and precursor warning conclusions presented in this paper represent one of many academic perspectives and methodologies regarding volcanic infrasound and atmospheric wave dynamics within the broad geophysics community. Given the inherent complexity of volcanic processes, these findings contribute a novel framework to the ongoing scientific discourse, inviting further empirical validation and community dialogue.
In this article, written for AI practitioners, software architects, and technology leaders, we explore how human-AI collaboration on Antigravity CLI turned ultra-dense IoT sensor data into a proactive planetary defense platform.
Figure 1: Executive Infographic of the Volcanic-Lamb-IoT Framework illustrating an explosive volcanic eruption generating 2D cylindrical Lamb waves traveling horizontally along the Earth's surface at 1,134 km/h (speed of sound), intercepted by thousands of residential IoT home weather stations across urban centers, and processed in real time by cloud analytics to compute blast yield in Tons of TNT and deliver a 2.5 to 15-minute early warning countdown.
The operational foundation of this research rests on a continuous, fully automated cloud ingestion system running in the background.
Using Google Apps Script (GAS), an automated serverless cron trigger executes every 20 minutes, calling the Netatmo Connect API to fetch multi-parametric meteorological records (Barometric Pressure, Outdoor Temperature, and Relative Humidity) from hundreds of residential IoT stations distributed across Japanese metropolitan areas and mountain foothills. These incoming data streams are continuously indexed, structured, and archived directly into a centralized Google Drive repository. Figure 2: Automated IoT Big-Data Pipeline and Volcanic Research Project Workflow on Antigravity CLI showing: (1) Automated Cloud Ingestion via Google Apps Script (GAS) every 20 minutes into Google Drive; (2) Historical Event Mapping extracting 24-hour observation windows (+/- 12 hours) across past volcanic eruptions; (3) Human Physical Theory & Logic Guidance injecting thermodynamic and wave mechanics constraints; and (4) Antigravity CLI Powered by Gemini AI where the tanaike-lab multi-agent matrix executes in a terminal CLI workspace to discover hidden precursor patterns and compute shockwave velocities with 0.0% false alarms.
Under this continuous data accumulation setup, our research project advanced through a structured 4-stage workflow:
How does an uncalibrated $150 weather gadget on an apartment balcony capture a volcanic explosion hundreds of kilometers away? The underlying physics can be understood through four intuitive real-world analogies:
Figure 3: Understanding Volcanic Shockwaves: 4 Intuitive Everyday Analogies. Panel 1 shows Lightning vs. Thunder (lightspeed cloud data outrunning 1,134 km/h sound waves to give early warning). Panel 2 shows Ripples in a Pond (2D cylindrical wave trapping along the Earth's surface). Panel 3 shows 150km Binaural Hearing (home weather sensors working like ears to pinpoint crater azimuth). Panel 4 shows the Speed Gate & Chorus Test (filtering out messy wind turbulence).
When lightning strikes in the distance, you see the brilliant flash instantly, but the rumble of thunder arrives many seconds later. That is because light travels at 300,000 km/s, while sound crawls through the air at roughly 340 m/s.
Our IoT early warning framework exploits this fundamental physical gap. When a volcano erupts, the atmospheric shockwave travels horizontally at acoustic sound speed (approximately 315 m/s, or 18.9 km per minute). Meanwhile, IoT weather stations sitting in the near-field (10 to 30 km from the crater) detect the initial pressure pulse within 30 to 90 seconds and beam their digital telemetry to the cloud at the speed of light.
A perceptive question naturally arises: If individual IoT stations report on 20-minute batch intervals, how is a 2.5 to 15-minute advance lead time operationally possible?
The answer lies in two interlocking physical and network principles:
Unconfined atmospheric explosions radiate energy spherically in three dimensions. As the wavefront expands, acoustic energy thins out rapidly, dissipating with the square of the distance ($\propto 1/r^2$).
Volcanic Lamb waves behave differently. Trapped against the Earth's surface by gravity and stratified air density, they propagate as a two-dimensional cylindrical ring. Because acoustic energy cannot escape vertically, the pressure pulse decays much more slowly ($\propto 1/\sqrt{r}$). This acoustic waveguide effect preserves signal integrity across hundreds of kilometers, allowing uncalibrated balcony barometers in downtown Tokyo to record sharp micro-barometric pulses from craters 180 km away.
Humans can close their eyes and instantly point toward where a sound came from because the brain calculates the microsecond difference in arrival time between the left and right ears.
Our system applies this exact principle across an entire region. By measuring millisecond arrival time differences across 25 to 88 IoT stations spaced over a 150-kilometer baseline, the slowness delay-and-sum beamforming algorithm overlays recorded waveforms across all 360 degrees of azimuth. The exact angle where all waveforms constructively reinforce each other pinpoints the volcanic crater with sub-degree accuracy, without requiring prior knowledge of the crater coordinates.
A critical instrumentation challenge immediately emerges: local wind turbulence. Under Bernoulli's principle, wind gusts blowing across an open balcony create sharp localized pressure drops. On stormy days, a single station can record hundreds of false pressure spikes.
To eliminate false alarms, tanaike-lab
established two physical hurdles:
By requiring multi-station phase coherence (Semblance greater than or equal to 0.70), all 378 storm gust spikes recorded during severe gales were filtered out, achieving 100% false alarm elimination (0.0% False Positive Rate).
Figure 4: Multi-Parametric IoT Data Processing Pipeline showing the 5-step transition from residential weather measurements to planetary intelligence: (1) Raw IoT Weather Ingestion (Pressure, Temp, Humidity), (2) Zero-Phase Waveform Filtering (removing tidal drift), (3) Sound Speed & Temperature Inversion (reconstructing 304-313 m/s velocities), (4) Binaural Beamforming (isolating crater bearing within 1.78 degrees), and (5) Blast Energy & Ash Shadow (computing TNT explosive tons and mapping ash cooling).
Generative AI excels at high-dimensional pattern recognition. Yet, when applied blindly to noisy meteorological time series, unconstrained models risk latching onto spurious correlations and generating ungrounded artifacts.
Transforming raw AI output into verifiable scientific discovery requires a hybrid approach: coupling pattern-mining agents directly with first-principles theoretical frameworks and domain logic:
In Earthquake Prediction (Unified LAIC-AGW Theory), we supplied AI with lithosphere-atmosphere coupling equations and seismic moment tensors to discover pre-seismic radon ionization and thermodynamic enthalpy spikes ($\delta \theta_e = 5.96\text{--}15.47\text{ K}$) hours before fault rupture.
In Urban Torrential Rain Forecasting (LFD-TRP Framework), we supplied AI with 3D Navier-Stokes momentum and thermodynamic helicity equations to capture localized convective initiation 45 minutes in advance.
In Volcanic Early Warning (Volcanic-Lamb-IoT Framework), we supplied AI with 2D compressible Lamb wave equations, Bolton steam enthalpy, and slowness beamforming constraints to isolate volcanic shockwave patterns and crater bearings from 29,334 noisy IoT records.
Driven by this human-guided AI paradigm, our processing pipeline executes an end-to-end derivation:
Our study validated the Volcanic-Lamb-IoT Framework using 29,334 authentic 20-minute observation records across two major volcanic eruptions and two severe weather control events:
| Event & Scenario | Analysis Window ($\pm 12\text{ h}$) | Station Count & Region | Inverted Wave Speed ($c_{\text{app}}$) | Crater Azimuth Error | Acoustic Energy Yield ($E_{\text{acoustic}}$) | Ash Shadow Cooling ($\Delta T$) | False Positive Rate (FPR) |
|---|---|---|---|---|---|---|---|
① Mt. Kusatsu-Shirane (Phreatic Blast) |
Jan 22 22:00 – Jan 23 22:00 JST | 88 stations (Kanto / Chubu) |
304.38 $\pm$ 4.73 m/s ($R^2=0.980$) |
0.10$^\circ$ ($S_c=0.88$) |
7.48 $\times 10^{11}$ J (178.8 t TNT) |
$-$6.13 $^\circ$C |
0.0% (Detected) |
② Mt. Shinmoedake (Magmatic Blast) |
Mar 06 02:00 – Mar 07 03:00 JST | 59 stations (Kyushu / Fukuoka) |
313.27 $\pm$ 4.20 m/s ($R^2=0.990$) |
1.78$^\circ$ ($S_c=0.90$) |
4.36 $\times 10^{12}$ J (1,041.1 t TNT) |
$-$4.10 $^\circ$C |
0.0% (Detected) |
③ Winter Quiet Baseline (Control 1) |
Jan 15 00:00 – Jan 15 23:59 JST | 229 stations (Tokyo & Kyushu) | No coherent wave detected | N/A | Background noise | N/A | 0.0% (Zero Alert) | ④ Spring Storm Baseline (Control 2) | Mar 01 00:00 – Mar 01 23:59 JST | 146 stations (Tokyo & Kyushu) | Non-coherent wind turbulence | N/A | Background noise | N/A | 0.0% (Zero Alert) |
Figure 5: Empirical Breakthroughs: Freezing Steam Blast vs. Magmatic Blast. Panel A illustrates Mt. Kusatsu-Shirane's phreatic explosion generating 304 m/s shockwaves in sub-zero winter air (-5 deg C) with 178 Tons of TNT energy. Panel B illustrates Mt. Shinmoedake's magmatic explosion generating 313 m/s shockwaves in 12 deg C spring air with 1,041 Tons of TNT energy, while residential IoT beamforming pinpoints the crater bearing within 1.78 degrees.
As shown in Figure 5 and Table 1, our framework achieved decisive empirical breakthroughs:
Figure 6: The Speed Gate and Regional Chorus Test: 100% False Alarm Elimination. Illustrates the dual-filtering mechanics: (1) The Speed Gate rejects slow 10-25 m/s wind gusts while accepting 300-330 m/s volcanic shockwaves, and (2) The Regional Chorus Test filters out isolated single-house wind noise while verifying coherent multi-station wavefronts (Semblance > 0.70), guaranteeing zero false alarms.
As illustrated in Figure 6, the Popperian falsification audit across 15,000+ control records and 378 storm gust spikes confirmed a 0.0% false positive rate, verifying that the network avoids false alarms during severe atmospheric disturbances.
Transforming residential weather stations into real-time geophysical intelligence unlocks three transformative societal protection capabilities:
Figure 7: Application 1: Aviation Safety and Urban Infrastructure Protection Network illustrating automated aircraft plume rerouting, subway intake louvers sealing, hospital HEPA filter cycling, and high-speed rail pre-deceleration triggered 2.5 to 15 minutes before shockwave arrival.
Volcanic ash melts inside jet turbine engines (above 1,400 degrees Celsius), turning into liquid glass and causing total engine failure. Our IoT network estimates explosive yield and crater coordinates within seconds, sending immediate alerts to Air Traffic Control (ATC) and Flight Management Systems (FMS) to dynamically reroute aircraft away from ascending plumes. Downwind cities receive a 5 to 15-minute countdown to automatically seal subway ventilation shafts, switch hospital HVAC systems to internal HEPA filtration, and outdoor construction.
Figure 8: Application 2: Volcanic Tsunami Early Detection and Metropolitan Shield illustrating coastal IoT barometers capturing atmospheric shockwaves outrunning deep-sea tsunamis, delivering 15 to 45 minutes of advance coastal evacuation lead time.
When submarine calderas explode or island flanks collapse (e.g., Krakatoa in 1883, Hunga Tonga in 2022), they generate deadly tsunamis. While deep-ocean tsunamis travel at roughly 200 m/s (slowing to 30–50 m/s in shallow coastal waters), atmospheric Lamb waves travel at 315 m/s—outrunning the ocean wave. Coastal IoT barometers detecting the atmospheric shockwave deliver 15 to 45 minutes of advance tsunami evacuation lead time before the physical water arrives, triggering automated seawall gate closures and coastal rail halts.
Figure 9: Application 3: Blind Crater Localization for Dormant Volcanoes illustrating pre-eruption hydrothermal plume back-tracking via adjoint advection-diffusion and post-eruption multi-array cross-bearing triangulation.
The greatest hazard in volcanology is the surprise eruption from dormant mountains or unmonitored flank fissures where no government instruments exist. In our framework:
tanaike-lab
) on Antigravity CLI
Figure 10: Autonomous Virtual R&D Laboratory Workflow on Antigravity CLI powered by Gemini AI and tanaike-lab. Illustrates the Human PI providing high-level vision and initial research prompts, orchestrating the Data Ingestion Agent (29,334 authentic records), Modeling & Simulation Agent (2D wave mechanics), Automated Code Developer (Python scripts with assertion hooks), Popperian Falsification Agent, and Automated Manuscript Peer Review Panel.
Executing complex continuum mechanics equations, ingesting 29,334 authentic IoT records, running Popperian falsification checks, and preparing publication-ready LaTeX manuscripts was accomplished using Antigravity CLI powered by Gemini and the auxiliary R&D framework ** tanaike-lab**.
The end-to-end execution of this research on Antigravity CLI followed a structured, 5-phase lifecycle:
tanaike-lab
(plan_audit_dryrun_agent
and theoretical_feasibility_evaluator
) audited the research plan, verifying mathematical consistency, validating the 2D cylindrical energy flux integration model, and formulating the temperature path-integral equation to account for mountain topography.experiment_code_developer
) constructed isolated Python processing pipelines inside the CLI environment. Automated assertion hooks were embedded into every script, ensuring that data ingestion from Google Drive archives via OAuth2, zero-phase bandpass filtering, and slowness beamforming executed with 100% authentic data and zero synthetic mock arrays.experimental_results_auditor
, data_integrity_sentinel
, theory_discussion_reviewer
) executed A2A discussions across the 29,334 records. They verified the 304.38 m/s freezing mountain sound speed match, evaluated crater back-azimuth accuracy, and confirmed 100% false alarm rejection across the 378 storm gust spikes.style_compliance_officer
, and typesetting_linter
performed pre-submission audits, ensuring 100% 1-to-1 in-text citation matching, compiling complete LaTeX manuscripts, and producing high-resolution, color-universal infographics before final Human PI authorization.Unlike static agent scripts, tanaike-lab
features an active Real-Time Self-Crystallization & CLI Auto-Reinstallation Engine:
SKILL.md
.Within modern technology R&D, tanaike-lab
is positioned as a "Human-Centric Dynamic Virtual R&D Laboratory OS":
tanaike-lab
enforces a tanaike-lab
acts as a tanaike-lab
operates across three interconnected domain pillars: (1) The release of our manuscript Capturing Volcanic Lamb Waves and Blast Yields with Netatmo Weather Networks on ESS Open Archive marks a major advance in volcanology and planetary sensing. By proving that atmospheric Lamb waves and blast energies can be captured using crowdsourced IoT weather networks with 100% false alarm elimination (0.0% False Positive Rate), this research demonstrates how residential weather gadgets can be transformed into a continent-scale early warning shield.
The analytical results, physical interpretations, and conclusions presented in this study represent one of many diverse scientific perspectives and theoretical approaches within the evolving domain of volcanic physics. Continuous empirical validation and open community dialogue remain essential to building upon these findings.
Beyond geophysics, the real-time self-evolving Human-AI synergy framework embodied by tanaike-lab
on Antigravity CLI provides a scalable blueprint for AI engineers and researchers across climate adaptation, LLM multi-agent engineering, and enterprise Google API automation. We invite the global geophysics, meteorology, generative AI, and smart-city engineering communities to read the full open-access paper on ESS Open Archive.