<p>The image below (borrowed from [#1]) shows the topology of the seismometers around the volcano Stromboli.</p>

<p><img src="https://i.sstatic.net/B5cUT.png" alt="enter image description here"></p>

<p>In the text, they explain the following:</p>

<blockquote>
  <p>The seimometers were set on the
  flanks of the volcano, forming three rings around the crater
  area at different altitudes (top, middle and bottom ring indicated
  on the map with the letters T, M, B, respectively). The
  distances of the stations from the crater zone ranged from 0.3
  to 2.2 km.</p>
</blockquote>

<ul>
<li><p>What are the factors that dictate a given topology for seismometer placement around a volcano?  There are probably some obvious rules of thumb in terms of placing them at different elevations and placing them outside of any lava paths or areas showered with debris.  </p></li>
<li><p>Is the soil around the volcano homogeneous enough to produce a response that radiates outward at the same rate?  If not, shouldn't the sensors be placed in concentric circles to capture the arrival times for the waves?</p></li>
</ul>

<blockquote>
  <p>Reference:</p>
  
  <ol>
  <li>De Lauro, E,De Martino, S, Falanga, M, and Palo, M. (2006). Statistical analysis of Stromboli VLP tremor in the band [0.1-0.5]Hz: some consequences for vibrating structures. <em>Nonlin. Processes Geophys., 13</em>, 393–400. <a href="http://dx.doi.org/10.5194/npg-13-393-2006">[DOI]</a> <a href="http://www.nonlin-processes-geophys.net/13/393/2006/npg-13-393-2006.pdf">[PDF]</a> (freely available)</li>
  </ol>
</blockquote>

<geophysics><seismology><volcanology>
What are the factors that dictate a given topology for seismometer placement around a volcano?
jonsca
# What are the factors that dictate a given topology for seismometer placement around a volcano?

(Asked by: username_0 on 2014-09-14)

The image below (borrowed from [#1]) shows the topology of the seismometers around the volcano Stromboli.

![enter image description here](https://i.sstatic.net/B5cUT.png)

In the text, they explain the following:

> The seimometers were set on the
> flanks of the volcano, forming three rings around the crater
> area at different altitudes (top, middle and bottom ring indicated
> on the map with the letters T, M, B, respectively). The
> distances of the stations from the crater zone ranged from 0.3
> to 2.2 km.

* What are the factors that dictate a given topology for seismometer placement around a volcano? There are probably some obvious rules of thumb in terms of placing them at different elevations and placing them outside of any lava paths or areas showered with debris.
* Is the soil around the volcano homogeneous enough to produce a response that radiates outward at the same rate? If not, shouldn't the sensors be placed in concentric circles to capture the arrival times for the waves?

> Reference:
>
> 1. De Lauro, E,De Martino, S, Falanga, M, and Palo, M. (2006). Statistical analysis of Stromboli VLP tremor in the band [0.1-0.5]Hz: some consequences for vibrating structures. *Nonlin. Processes Geophys., 13*, 393–400. [[DOI]](http://dx.doi.org/10.5194/npg-13-393-2006) [[PDF]](http://www.nonlin-processes-geophys.net/13/393/2006/npg-13-393-2006.pdf) (freely available)

**Tags:** geophysics, seismology, volcanology


---

## 0 answers

