Jamaat Salaah and Imaamat

Should the Imaam terminate the salaah in the case of an earthquake?

Q: If an Imam is leading an obligatory prayer in the Masjid and an earthquake strikes severely, under the Shariah, should he not suspend that salah and ensure for human safety and not show heroism? Taking the cue from the ruling on rains and harsh cold weather and the Prophet (sallallahu alaihi wasallam)'s command to stay at home and pray, is earthquake not a bigger calamity? 

Performing salaah with jamaat at work

Q: I work in a hospital. The nearest Musjid/Musallah is about 5-6 km away. Alhamdulillah we have permission to travel for Zuhr salaah during our lunch break (Our lunch break is 30 min, but it takes about 40min to go for Zuhr salaah and come back to work) and have been doing so for approximately the last 3 years.

However there are colleagues from other departments in the hospital who are not always able to join us for salaah. Should we request hospital management to give us a room to perform salaah with jamaat, and encourage other colleagues to join us for jamaat, or should we continue to encourage them to join us for salaah at the musjid?

Performing Salaah between pillars

Q: In a Masjid, a row is usually left empty after every few rows, as it has several pillars.

1. If it is left empty, is the Salah of those behind it valid?

2. Is Salah valid between the pillars?

3. Once, people prayed in that row to the right of a pillar, but to the left of the pillar the row was empty. Was the Salah of those who prayed to the right of the pillar valid?

Women reading Taraweeh in jamaat

Q:

1. I wanted to know if two women are reading Taraweeh together, must the one leading for those rakaats stand a little forward and the one following a little behind, or must they stand in line?

2. If one woman isn't reading, can she sit with a Qur'aan next to the one who's reading Taraweeh, and correct her if she makes a mistake ? (The one reading will be reciting in a slightly audible tone, is this permissible as well?)