Tirelessly updating Avalon on the El Hierro eruption.

[Amzer Zo]

Polly’s* latest:

How it's looking like now from Las Puntas de La Frontera:




For the last 10 days, it now shows whatever Polly is up to as far as seismic activity is concerned:



GPS solutions from IGN

GPS Stations location:

Location of the EQs in the last 15 days:

Refresh your browser page to get the latest numbers and positions.

Location of the EQs in the last 3 days:


Refresh your browser page to get the latest traces.

* : Polly was so named from the “polycephalic snake” look of the initial cumulative energy graph (see post # 327).
The name became most appropriate when the eruption from multiple mouths/vents/cones/heads started to develop.

[Amzer Zo]

Strongest so far (no data):

For the day:



Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

Refresh your browser page to get the latest traces.


See top of page for the other auto-updating diagrams.

[Amzer Zo]

Strongest so far (no data):

For the day:



Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

Refresh your browser page to get the latest traces.


See top of page for the other auto-updating diagrams.

[Amzer Zo]

Strongest so far (no data):

For the day:



Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

Refresh your browser page to get the latest traces.


See top of page for the other auto-updating diagrams.

[Amzer Zo]

Strongest so far (no data):

For the day:



Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

Refresh your browser page to get the latest traces.


See top of page for the other auto-updating diagrams.

[Amzer Zo]

Strongest so far (no data):

For the day:



Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

Refresh your browser page to get the latest traces.


See top of page for the other auto-updating diagrams.

[Amzer Zo]

Strongest so far (no data):

For the day:



Frequencies spectrogram, the vertical streaks indicate “events” (tremors/EQs) whereas the horizontal ones reflect volcanic/magmatic activity:

From Wikipedia: A Harmonic tremor is a sustained release of seismic and/or infrasonic energy typically associated with the underground movement of magma and/or venting of volcanic gases from magma. Being a long-duration continuous signal from a temporally extended source, a volcanic tremor contrasts distinctly with transient sources of seismic radiation, such as tremors that are typically associated with earthquake and explosion.

Refresh your browser page to get the latest traces.


See top of page for the other auto-updating diagrams.