Sentence examples for before the first eruption from inspiring English sources
"I came here one day before the first eruption, and so did many people.
Banded tremor was first recorded on 1 April, 1 week before the first eruption.
The precursory increase in seismicity began in late September about 2 months before the first eruption on November 18.
As previously mentioned, two remarkable volcanic tremors occurred before the first eruption on November 18: the first at 14 11 JST on September 29 and the second at 00 56 JST on November 16.
During this 1-week interval, tremor amplitudes increased progressively to the time of eruption, then disappeared temporarily before resuming on 13 April, 4 days before the second eruption.
The first eruption occurred seven months later in the Los Angeles neighborhood of Watts.
For example, the first eruption on 26 January was associated with two subtle changes in strain: one approximately 8 hours before the eruption and a second at 15:00–15:30, immediately prior to the eruption.
The disturbance lasts more than one hour for the first eruption and about half hour for the second eruption.
It is the first eruption of Nabro on record.
The third eruption occurred in 2007.
At about 14 50, seismic amplitudes increased again (Fig. 5(a)), which corresponds to the subtle deformation just before the first sub-Plinian eruption.
