Authorizing funding for certain programs under the Earthquake Hazards Reduction Act of 1977, and for other purposes.

Amends the Earthquake Hazards Reduction Act of 1977 to define "lifeline" to include transportation infrastructure, utilities, and communication facilities.

Requires the Director of the Federal Emergency Management Agency (FEMA) to consult with the Director of the Office of Science and Technology Policy before planning and coordinating the national earthquake hazards reduction program. Requires the Director of such Office to report to specified congressional committees on the Office's role in interagency coordination, planning, and operation of the program.

Authorizes appropriations to the Director of FEMA to carry out the program for FY 1991 through 1994, with special emphasis on: (1) a program to identify Federal buildings at seismic risk and set seismic standards for new construction; (2) grants to States for programs of seismic safety inspections of critical structures and lifelines; and (3) developing recommended building codes and practices for buildings, lifelines, and other structures in coordination with the National Institute of Standards and Technology and appropriate private organizations.

Authorizes appropriations to the Secretary of the Interior for FY 1991 through 1994 for carrying out the responsibilities that may be assigned to the Director of the United States Geological Survey under the Earthquake Hazards Reduction Act, with special emphasis on the establishment and operation of intensive hazardous fault monitoring projects, seismic microzonation studies in areas determined to be of significant earthquake risk, and seismological engineering studies.

Extends through FY 1994 the authorization of appropriations to the National Science Foundation and the National Institute of Standards and Technology for their responsibilities under such Act.