# Seismic Signals from Waves on Titan's Seas

## TL;DR

This paper estimates the potential for seismic signals generated by waves on Titan's seas, suggesting that future lander missions could detect and utilize these signals to study Titan's interior and weather phenomena.

## Contribution

It provides the first estimation of microseismic signals on Titan based on modeled wind speeds, highlighting their detectability with current and future seismic instruments.

## Key findings

- Storms over 2 m/s generate detectable seismic signals.
- Seismic signals from Titan's seas could be observed globally with high-quality sensors.
- Microseisms could aid in Titan's interior and atmospheric studies.

## Abstract

Seismology is the main tool for inferring the deep interior structures of Earth and potentially also of other planetary bodies in the solar system. Terrestrial seismology is influenced by the presence of the ocean-generated microseismic signal, which sets a lower limit on the earthquake detection capabilities but also provides a strong energy source to infer the interior structure on scales from local to continental. Titan is the only other place in the solar system with permanent surface liquids and future lander missions there might carry a seismic package. Therefore, the presence of microseisms would be of great benefit for interior studies, but also for detecting storm-generated waves on the lakes remotely. We estimated the strength of microseismic signals on Titan, based on wind speeds predicted from modeled global circulation models interior structure. We find that storms of more than 2 m/s wind speed, would create a signal that is globally observable with a high-quality broadband sensor and observable to a thousand kilometer distance with a space-ready seismometer, such as the InSight instruments currently operating on the surface of Mars.