USA - According to PNSN, 88 earthquakes rattled Mount St Helens in the last 30 days. They all lie within the crater. PNSN also explains on their website that: on average (not during eruptions or their precursors) they locate about 17 earthquakes a month at Mount St.Helens. So 88 quakes are a lot more (a difference of 71 from the monthly average)…These quakes are related to stresses generated by magma recharge into the main crustal magma system. Although the seismic activity has decreased over the last 2 days, this new sequence of earthquakes clearly demonstrate that Mount St Helens is preparing for the next eruption… Just be ready for the next big explosion!