At least six people are dead and a tsunami measuring 0.7m has been confirmed in Mexico after a massive 8.2-magnitude quake hit off the coast of Southern Mexico on Thursday.
Reports state that people in the capital city began to flee from their buildings when they felt strong tremors.
Gomez-Wulschner said she could hear sirens, ambulances and helicopters in the aftermath, but did not see any immediate damage near her.
Widespread, hazardous tsunami waves were possible, the Pacific Tsunami Warning Centre said. "Tsunami waves reaching more than 3 meters above the tide level are possible along some coasts of Mexico".
The quake hit offshore in the Pacific about 120km southwest of the town of Tres Picos in far southern Chiapas state. It was close to both the Mexican states of Chiapas, which borders Guatemala, and Oaxaca in the Middle America trench.
Residents in Guatemala were also shaken by the quake.
In Mexico, some buildings were severely damaged in the south of the country. According to Government reports at least 5 killed, including 2 children in Tabasco state.
Mexico City reportedly felt the effect of the quake as journalists reported power outages as well as images showing buildings and other structures swaying violently.
The Mexico City fire department told ABC News that there were no casualties.
I had never been anywhere where the earth moved so much, said 31-year-old architect Luis Carlos Briceno, who is visiting Mexico City.
A 1985 tremor flattened swathes of Mexico City and killed thousands.
An 8.1-magnitude natural disaster hit off the coast of southern Mexico, toppling houses in Chiapas state, causing buildings to sway violently as far away as the country's distant capital and setting off a tsunami warning.
The president said more aftershocks were likely and that people should carefully check their homes and offices for structural damage and for gas leaks.
She said she parked her vehicle and stood with other people in middle of the street to avoid falling objects.
Lucy Jones, a seismologist in California who works with the U.S. Geological Survey, said such as quake was to be expected.
On his verified twitter account, Mexico's President Enrique Pena Nieto tweeted, "Civil protection protocols are activated, including the National Emergency Committee".