Aftermath of the 2011 Tōhoku earthquake and tsunami highest in the world). This additional spending could hurt demand for government bonds. Silicon wafer production has been suspended at factories owned by Shin-Etsu Chemical and MEMC Electronic Materials, which together account for 25% of the global silicon wafer production. The suspension is expected to drastically impact semiconductor production, which is contingent on wafer availability. Some economic analysts consider that, ultimately, the catastrophe will improve Japan's economy, with increased job availability during restoration efforts. An analyst at JPMorgan Chase, citing the 1989 Loma Prieta earthquake in the San Francisco Bay Area and the Southern California 1994 Northridge earthquake, noted that
Eastern span replacement of the San Francisco–Oakland Bay Bridge section was composed of a double balanced cantilever span, five through-truss spans, and a truss causeway. The original spans of the bridge east of Yerba Buena Island became the subject of concern after a section collapsed during the Loma Prieta earthquake on October 17, 1989. The replacement span is engineered to withstand the largest earthquake expected over a 1500-year period, and it is expected to last at least 150 years with proper maintenance. It had been known for over 30 years that a major earthquake on either of two nearby faults (the San Andreas and the Hayward) could destroy the