News

We are very pleased to see how a passive seismic survey carried out using Tromino broadband sensors is supporting Rare Earth Elements exploration.
Tromino results show a strong correlation with historical gravity lows, clearly imaging contrasts between carbonatite–skarn units and the surrounding gneiss, and highlighting a new, previously untested covered zone beyond the historically mined area.

We are also happy to see Tromino performing in challenging field conditions, including snow-covered and marshy environments, further confirming the potential of passive seismic methods for mineral exploration.

Credits to: European Resources Limited (ASX: ERE) (FSE: 1P80) https://lnkd.in/dvfjiwad

Read more at this link.

MoHo presents GrillaLens, the first software that uses Artificial Intelligence for automatic interpretation and quality control of microtremor H/V curves.

For information, contact us.

Learn how we have trained neural networks to help you with tasks of signal analysis and interpretation of H/V curves. The brand new Grilla AI automates workflows, improves productivity, and provides new perspectives on data. Without forgetting, however, that the human brain’s “neural network” remains the ultimate and most critical factor.

The webinar will be held on October 7th (UTC afternoon time, suggested for Americas) and on November 28th (UTC morning time, suggested for Europe, Middle and Far East).

To register, fill out the online form.

One of the key steps in interpreting H/V curves is distinguishing stratigraphic features from non-stratigraphic ones, such as artifacts of industrial origin, related to vibrations from nearby machinery or structures.

While we are preparing GrillaAI — the new software that automatically classifies the various aspects of H/V curves and will be officially launched in September 2025 — we would like to inform you that the current versions of Grilla available online already allow for the removal of artifacts!

Download Grilla from this link.

You can also read this publication or take a look at LinkedIn.

Can you imagine how many things you can do with a seismometer and a few minutes of time? Soil and structure prospection with a single seismometer.

More information at this link.

May 28 2024. Talk About Geophysics! TAG Webinar Series.

Available now on our YouTube channel the webinar PASSIVE SEISMIC APPROACHES FOR ACTIVE GEOPHYSICISTS (H/V vs H and V), organized by the Environmental and Engineering Geophysical Society (EEGS).

In this webinar, Silvia Castellaro reviews the phenomenology of 1D and 2D resonances in seismic microtremor recordings. In the 1D case, the H/V method has strong stratigraphic capabilities. In the 2D case, the H/V method does not show any frequency variation and one should move to the “H and V” approach to gain some stratigraphic information.

References:

– Castellaro and Musinu, Resonance vs Shape of Sedimentary Basins, Bull. Seism. Soc. Am., 2023

– Sgattoni and Castellaro, Detecting 1-D and 2-D ground resonances with a single-station approach, Geophys. Journ. Int., 2020

To watch the webinar, click here.

Vibrì 5.0, the software for the analysis of vibrations affecting people in buildings, is online! It now inputs directly .trc data from Tromino and Suricat and provides new statistical and analysis tools! Download it from www.moho.world/download or ask us for a demo.

At this link, you can book your 90-minute slot for trying out our software autonomously.

The trial will be held via the Teamviewer Full Client platform. Please install it before your appointment from this link.

We will provide example datasets for your trial.

If you wish to process your own data, please send them in advance to support@moho.world.

The brand new Tromino^® App is now available on the Google PlayStore for all the Tromino Blue (and Zero Blue).

This new App allows you:

• To fully manage Tromino^® from smartphones/tablets, without any cable
• Real time analysis – directly on mobile devices – of spectra and H/V spectral ratios!!!
• To download the recordings directly onto the smartphone and to share them with your colleagues by means of Whatsapp or other apps
• To adjust the instrumental sensitivity, to avoid saturated signals in case of strong vibrations

A tutorial of the new App is here.

The new App is available only for Android OS (we are working to find solutions also for IOS devices). The App costs 20 euros as a contribution for its development. All the following updates, as well as installations on other devices performed under the same account, are free.

The App requires the permission to identify nearby devices. Please follow the instruction here.

The former (2019) Tromino App (available here) remains fully free.

The detailed programs and the complete calendar for our 2023 webinars are online now!

• H/V and Vs CONTOURs (June 29th and July 12th 2023)
• JOINT FIT OF H/V , DISPERSION CURVES AND OTHER DATA: EXERCISE SESSION (July 24th and July 26th 2023)

To sign up, fill out the online form.

The 2021 webinars on soil and structure dynamic characterization remain available for purchase online.