Landslide

Warning signs of Landslides:

  • Doors and windows jam for the first time. (note: this alone is not a big enough indicator of a landslide)
  • New cracks suddenly appear in plaster, tile, brick, or foundations.
  • Outside walls, walks, or stairs begin pulling away from the building.
  • Cracks that slowly and suddenly develop and widen on the ground or on paved areas such as streets or driveways.
  • Underground utility lines break
  • Bulging ground appears at the base of a slope.
  • Water breaks through the ground surface in new locations.
  • Fences, retaining walls, utility poles, or trees appear to tilt or move.
  • You may hear a faint rumbling sound which increases in volume as the landslide draws closer.
  • The ground slopes downward in one specific direction and may begin shifting in that direction under your feet.
  • Seek the advice of a geo-technical expert for evaluation of landslide hazards or corrective techniques to reduce landslide risk

What do to during a landslide:

  • If you are inside:
    • Stay inside and take cover under a desk, table, or other piece of sturdy furniture.
  • If outdoors:
    • Attempt to get out of the path of the landslide
    • Run to the nearest high ground area that’s away from the landslide
    • If rocks and other debris are approaching, run for the nearest shelter such as a group of trees or a building
    • If you cannot escape, curl into a tight ball and be sure to protect your head
  • Stay away from the area of the landslide, as there may be additional slides
  • Check for injured and trapped persons near the slide area, give first aid if possible
  • Listen to a battery operated radio or television for the latest emergency information
  • Remember the flooding may occur after a landslide, so consult our page on floods for more information

What to do after a landslide:

  • Check for damaged utility lines, if you find any, report it to the utility company
  • Check the building foundation, chimney, and surrounding land for damage
  • Re-plant damaged ground ASAP since erosion can cause flash flooding