Hualien, Taiwan—A powerful magnitude 5.4 aftershock rattled eastern Taiwan's mountainous terrain Friday morning, dislodging thousands of tons of rock and soil that crashed onto a scenic highway, killing a driver. The seismic event struck at 10:15 a.m., with its epicenter located off the rugged coastline of Hualien County at a depth of fifteen kilometers. The sudden tremor severed local communication lines and triggered extensive land movements across unstable cliff faces.

The Central Weather Administration (CWA) reported that the aftershock registered an intensity level of 4 in Hualien County, causing severe shaking across already compromised geographic features. A massive multi-ton boulder broke away from a peak overlooking a vital mountain highway segment, plunging directly onto an oncoming utility vehicle traveling southbound.

Emergency highway response units utilized heavy pneumatic shears and hydraulic rams to gain access to the completely flattened vehicle cabin. Rescuers located one adult male driver trapped within the compressed driver's seat assembly. Paramedics confirmed the victim had sustained fatal head and spinal trauma from the overhead structural impact, declaring him deceased before extrication could be completed.

Focus Taiwan reported that the deceased individual was a forty-eight-year-old local logistics transport operator executing a routine supply delivery to remote mountain communities. Structural inspection teams deployed aerial surveillance drones to survey the upper ridge lines, identifying several secondary rock fissures that pose an imminent threat of further collapses under subsequent seismic activity.

Highway maintenance crews immediately closed a thirty-kilometer stretch of the mountain highway, placing heavy concrete barricades across key intersection approaches to turn back civilian tourist traffic. Regional police units established emergency checkpoints to clear remaining vehicles from vulnerable valley sections prone to secondary land slips.

Seismologists from the CWA noted that the region remains highly vulnerable to significant slope failures due to the cumulative structural degradation caused by previous earthquake sequences. Geologists have warned that recent rainfall patterns have further lubricated the internal rock seams, making them highly susceptible to shifting from even minor energy releases.

The body of the driver was transported to the Hualien county mortuary facility to allow the local coroner's office to complete the required administrative medical inspections. Family support workers have been deployed to guide relatives through the municipal casualty processing procedures.

Heavy road clearing machinery began breaking up the fallen boulder formations late Friday afternoon to restore basic emergency transit access along the critical corridor.

Civil defense officials have issued a general advisory urging residents to avoid all unnecessary transit through the central mountain range routes until regional seismic activity subsides.