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2018 Long-term National Seismic Hazard Map

2018 Long-term National Seismic Hazard Map
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A combination of brackets and self-locking drawers. Drawer closures should be used to protect the home during seismic events.

A combination of brackets and self-locking drawers. Drawer closures should be used to protect the home during seismic events.
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A fuel tank should be anchored with ground anchors designed for site conditions to maintain secure connection to its base in a flood or earthquake

A fuel tank should be anchored with ground anchors designed for site conditions to maintain secure connection to its base in a flood or earthquake
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A masonry chimney is reconstructed to withstand seismic forces by adding an insert to the existing firebox

A masonry chimney is reconstructed to withstand seismic forces by adding an insert to the existing firebox
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A masonry chimney is reconstructed to withstand seismic forces by completely retrofitting the firebox and chimney using light-frame construction on the top of the foundation

A masonry chimney is reconstructed to withstand seismic forces by completely retrofitting the firebox and chimney using light-frame construction on the top of the foundation
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A masonry chimney is reconstructed to withstand seismic forces by maintaining the current firebox but replacing the chimney section with a metal flue and light-weight chimney enclosure.

A masonry chimney is reconstructed to withstand seismic forces by maintaining the current firebox but replacing the chimney section with a metal flue and light-weight chimney enclosure.
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A masonry chimney is shortened and capped at roof level to reduce its chances of detaching in high winds or earthquakes; the fireplace can no longer be used.

A masonry chimney is shortened and capped at roof level to reduce its chances of detaching in high winds or earthquakes; the fireplace can no longer be used.
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A permanent awning prevents snow and overflowing ice dams from causing damage to HVAC equipment below.

A permanent awning prevents snow and overflowing ice dams from causing damage to HVAC equipment below.
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A properly sized cold climate heat pump can meet 100% of a home’s heating load in nearly any location in the United States

A properly sized cold climate heat pump can meet 100% of a home’s heating load in nearly any location in the United States
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A resilient multifamily building in Puerto Rico constructed of concrete on a raised slab foundation with a hip roof design for wind resistance and deep overhangs and permanent awnings to keep sun and rain off windows.

A resilient multifamily building in Puerto Rico constructed of concrete on a raised slab foundation with a hip roof design for wind resistance and deep overhangs and permanent awnings to keep sun and rain off windows.
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A seismic shut off valve with a stopper to cease the flow of gas to a property during the event of an earthquake.

A seismic shut off valve with a stopper to cease the flow of gas to a property during the event of an earthquake.
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A seismic snubber is a type of bracket specifically designed to anchor heavy equipment to the floor to restrain it in the event of an earthquake.

A seismic snubber is a type of bracket specifically designed to anchor heavy equipment to the floor to restrain it in the event of an earthquake.
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A simple kit for anchoring a TV, appliance, or furniture to a wall may include straps, attachment hardware, and screws for attaching both to the appliance and to the wall

A simple kit for anchoring a TV, appliance, or furniture to a wall may include straps, attachment hardware, and screws for attaching both to the appliance and to the wall
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A single-story house floor plan showing braced wall line locations at A through E and 1 through 5

A single-story house floor plan showing braced wall line locations at A through E and 1 through 5
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A water heater is anchored to 2 x 4 wood blocking that is attached to the wall studs.

A water heater is anchored to 2 x 4 wood blocking that is attached to the wall studs.
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All holes through the top plates should be sealed with canned spray foam to prevent conditioned air from leaking into the attic.

All holes through the top plates should be sealed with canned spray foam to prevent conditioned air from leaking into the attic.
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An anchor side plate is used to connect the concrete foundation to the sill plate from the exterior as part of a seismic retrofit when the sill plate is not accessible from the interior of the home

An anchor side plate is used to connect the concrete foundation to the sill plate from the exterior as part of a seismic retrofit when the sill plate is not accessible from the interior of the home
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An earthquake-actuated automatic gas shutoff valve is attached to the natural gas pipeline between the meter and the house, downstream of the meter, to stop the flow of gas into the house if an earthquake occurs.

An earthquake-actuated automatic gas shutoff valve is attached to the natural gas pipeline between the meter and the house, downstream of the meter, to stop the flow of gas into the house if an earthquake occurs.
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An example of a vertical California Seismic Valve

An example of a vertical California Seismic Valve
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An indoor water heater should be secured to the wall’s studs to prevent it from moving or tipping over in the event of an earthquake

An indoor water heater should be secured to the wall’s studs to prevent it from moving or tipping over in the event of an earthquake
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An Inset Shear Panel constructed with 2x4 dimensional lumber installed into a 2x6 stud bay

An Inset Shear Panel constructed with 2x4 dimensional lumber installed into a 2x6 stud bay
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Anchor bolts should be at least 1/2-inch diameter and should be embedded at least 7 inches into the foundation, spaced not more than 6 feet apart, and between 3.5 and 12 inches from each end of the sill plates.

Anchor bolts should be at least 1/2-inch diameter and should be embedded at least 7 inches into the foundation, spaced not more than 6 feet apart, and between 3.5 and 12 inches from each end of the sill plates.
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Basement foundation insulated on interior with rigid foam.

Basement foundation insulated on interior with rigid foam.
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Braced wall lines in a typical house plan, Figure R602.10.1.1 in the IRC

Braced wall lines in a typical house plan, Figure R602.10.1.1 in the IRC