A survey of published scientific literature was undertaken to identify and catalog observed
earthquake precursors. The earthquake precursors selected for analysis included electric …

Oscillations in stress, such as those created by earthquakes, can increase permeability and
fluid mobility in geologic media. In natural systems, strain amplitudes as small as 10− 6 can …

The 2006 second edition of this well received and widely adopted textbook has been
extensively revised to provide a more comprehensive treatment of hydromechanics (the …

Groundwater chemistry has been observed to change before earthquakes and is proposed
as a precursor signal. Such changes include variations in radon count rates,, concentrations …

Injecting fluids in the crust, or their extraction, changes pore pressure and poroelastic
stresses. Both pressure and stress changes can promote seismicity and, hence, the seismic …

Coseismic static stress changes and dynamic stresses generated by seismic waves cause
changes in water level in wells and in stream flow and alter hydrogeologic properties such …

Possibilities to perform pre-and post-seismic groundwater chemical comparisons on
regional groundwater flow systems are rare due to lack of data and observations. The …

Seismic precursors are an as yet unattained frontier in earthquake studies. With the aim of
making a step towards this frontier, we present a hydrogeochemical dataset associated with …

We aim at giving a short review of the seismo-associated phenomena detected on ground
that in recent years have been investigated as possible earthquake precursors. The paper …

More than 100 publications reporting radon anomalies to precede earthquakes were
evaluated. A clear apparent negative correlation between the number of reported anomalies …