Courses

Start with the basics! This practical course, designed for real beginners, will guide you step by step to discover the basic functionalities of Tromino and Grilla. Find out how to set up your device and software, and use them in your workflow.

To purchase access to the recording of this webinar, fill out the online form.

This course was held on October 10^th, 2025.

Learn how we have trained neural networks to help you with tasks of signal analysis and interpretation of H/V curves. The brand new GrillaLens 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.

To purchase access to the recording of this webinar, fill out the online form.

This course was held on November 7^th and November 28^th, 2025.

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.

A course on the bases and interpretation of microtremor HVSR curves.

Within the frame of the elastic theory, the vibration modes, or resonances, are linked to the geometrical properties and to the material stiffness of objects. When this theory is applied to subsoils, where it holds for weak excitations (microtremors), the identification of resonances is important both to get information about the seismic stratigraphy and to assess the seismic response of a site. The identification of the vibration modes is very frequently performed within the frame of the H/V method, also known as HVSR or Nakamura’s method. This webinar provides an overview on the microtremor spectral features (H and V, horizontal and vertical), on their ratios (H/V), on the main applications and limitations.

This is a 5 hour webinar.

The recording of this course is now available for purchase (90 euros, VAT applies only to EU citizens without VAT number. In this case: 90€+19.80€ VAT = 109.80€). The recording can be accessed for 3 days. 

To purchase access to the recording of this webinar, fill out the online form. 

See the participants’ feedback.

This course was given on April 29^th, May 7^th and May 13th 2021.

The sequel of the H, V, H/V course, that we recommend following before registering for this course. Here we focus on:

•  Vs profiling from constrained H/V curves (constrained with drillings and or surface wave dispersion curves)
•  Bedrock mapping and contouring
•  Interpretation in 2D cases

This is a 5 hour webinar.

The recording of this course is now available for purchase (90 euros, VAT applies only to EU citizens without VAT number. In this case: 90€+19.80€ VAT = 109.80€). The recording can be accessed for 3 days. 

To purchase access to the recording of this webinar, fill out the online form. 

See the participants’ feedback.

This course was given on October 15^th and October 21^st 2021.

We practice together on the joint interpretation of H/V and dispersion curves in cases of intermediate complexity and by exploiting different types of information hidden in the dispersion curve data or coming from other geophysical surveys.

The recording of this course is now available for purchase (90 euros, VAT applies only to EU citizens without VAT number. In this case: 90€+19.80€ VAT = 109.80€). The recording can be accessed for 3 days. 

To purchase access to the recording of this webinar, fill out the online form.  

See the participants’ feedback.

This course was given on July 24^th and July 26^th 2023.

Acquiring microtremor data today is common practice, and a lot of data is often available for the same area. We see how to present and interpret them concisely yet informatively using contouring procedures. We show examples of bedrock mapping, landslide mapping, rock glacier mapping and fine-to-coarse-grained sediment transition mapping. We will use the new MoHo software HeeVee.

The recording of this course is now available for purchase (90 euros, VAT applies only to EU citizens without VAT number. In this case: 90€+19.80€ VAT = 109.80€). The recording can be accessed for 3 days. 

To purchase access to the recording of this webinar, fill out the online form.

See the participants’ feedback.

This course was given on June 29^th and July 12^th 2023.

Engineering structures transfer their natural vibration modes to ground and, at the same time, the ground transfers its natural vibration modes to structures. The capability to discriminate between the dynamic behaviour of a structure and the dynamic behaviour of a soil is fundamental for anyone working with microtremor and vibration data. Measuring the dynamic behaviour of a structure under weak excitation is also very important for a number of other reasons (e.g., to predict the seismic behaviour, to verify the effects of renovations or to calibrate models, etc.). This course is addressed to geologists, geophysicists, structural engineers, architects and beyond.

This is a 5 hour webinar.

The recording of this course is now available for purchase (90 euros, VAT applies only to EU citizens without VAT number. In this case: 90€+19.80€ VAT = 109.80€). The recording can be accessed for 3 days. 

To purchase access to the recording of this webinar, fill out the online form.

See the participants’ feedback.

This course was given on July 21^st and July 23^rd 2021.

On December 5-6, MoHo and the Wings Technology Enterprise, Inc. partner were present at GeoCon 2023, the annual meeting of the Geological Society of the Philippines, where Fabio Schiavon presented MoHo’s approach to modern non-invasive seismic subsoil imaging.

A talk about the use of the MoHo instruments and their main applications has aroused a lot of interest during the last annual meeting of our Chinese representative, Orange Lamp.