Complex sentence: Since the earthquake the group has been a huge hit at summer festivals around the area they also founded a charity fund, The Soul Flower Earthquake Fund in order to help with the elderly and handicap victims of the earthquake.
Split into simpler sentences: Since the earthquake the group has been a huge hit at summer festivals around the area. They also founded a charity fund, The Soul Flower Earthquake Fund, in order to help with the elderly and handicap victims of the earthquake.