Short answer. Yes. Once one solidary debtor has been placed in delay by a judicial or extrajudicial demand, a later fortuitous loss is treated the same as a loss caused by fault — all of you become responsible to the creditor for the price, damages, and interest, even though a typhoon actually destroyed the thing.
What the law says
If through a fortuitous event, the thing is lost or the performance has become impossible after one of the solidary debtors has incurred in delay through the judicial or extrajudicial demand upon him by the creditor, the provisions of the preceding paragraph shall apply
Civil Code, Article 1221 — Loss of the Thing in Solidary Obligations. Read the full provision →
Fortuitous loss usually extinguishes the debt
The general rule for solidary obligations is generous to debtors: if the thing owed is lost, or performance becomes impossible, without the fault of the solidary debtors, the obligation is simply extinguished. Nobody pays, because nobody is to blame. A typhoon destroying the thing would ordinarily fall squarely within that rule, and none of you would owe anything further — the loss binds the creditor to absorb it, not the debtors.
Delay changes the analysis
That general rule does not survive delay. Once a creditor has made a judicial or extrajudicial demand on one of the solidary debtors and that debtor is now in delay, a fortuitous loss occurring after that point is treated exactly as if the loss had been caused by fault. The debtor's own delay substitutes for fault as far as the legal consequences are concerned — the typhoon does not erase the liability the way it would have before the demand.
Why all of you are on the hook, not just the one in delay
The provision that governs a fault-caused loss applies here by cross-reference, and that provision makes all the solidary debtors responsible to the creditor for the price, damages and interest — not only the debtor who was actually placed in delay. Solidarity means the creditor can recover the full amount from any of you, and that consequence carries over once the delay-triggered exception is in play.
You are not without recourse against each other
Being liable to the creditor as a group does not settle things between yourselves. The rule expressly preserves the paying debtors' action against whichever debtor's conduct actually put the group in this position — here, the one whose delay converted a fortuitous loss into a compensable one. Whoever ends up paying the creditor can still pursue that debtor separately for reimbursement, so the loss does not necessarily rest, in the end, on debtors who had nothing to do with the delay.