It was the AM side that got hit. They then used a translator on the FM side.
Also is a link from the FCC to explain a translator.
en.wikipedia.org
FM translators and FM boosters comprise a low power service on the FM broadcast band (88 to 108 MHz) that complements the primary FM service. This service was first created in 1970 to allow FM stations to provide supplementary service to areas in which direct reception of radio service is unsatisfactory due to distance or intervening terrain barriers (for example, a mountain). Most translators or boosters may not originate programming, except for the limited fundraising efforts in the case of translators as explained below. (Exception -- some FM translators relaying AM daytime-only stations may continue to transmit programming when the AM station is off the air at night.) Translator stations rebroadcasting a commercial AM or FM station (the primary station) may be authorized on Channel 221 through 300 (92.1 MHz to 107.9 MHz), while a translator rebroadcasting a noncommercial educational station (the primary station) may be authorized on any FM channel (Channels 201 to 300, or 88.1 MHz to 107.9 MHz). The maximum effective radiated power permitted for any translator station is 250 watts, while the maximum effective radiated power for a booster station is 20% of the main station's maximum class power.