I did forget to account for rainfall there Orc. Heavy to major rainfall has been speculated to be a major precursor or direct contributor to seismic activity (limited to areas known for seismic activity/ fault regions), not to mention soil saturation that can lead to sinkholes, in worst case scenarios coastal erosion and another natural process where the land liquifies, known as liquifaction which we saw alot of it during the New Christchurch flooding and the Japan Quake back in 2011. Your local salt deposits would have much to disclose about how your land would handle all of this.
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