The disappearance of an AirAsia passenger jet soon after takeoff inevitably brings back memories of the mystery behind Malaysia Airlines Flight 370, which disappeared nearly 10 months ago and is yet to be found.

But while it is still not known what happened to AirAsia Flight 8501, there appear to be no reasons its presumed crash is anything other than a regular — if tragic — aviation disaster, whose cause will become apparent only when the wreckage and flight data recorders are recovered.

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But until that happens, comparisons will be made of the circumstances leading up to the two events, the responses by regional authorities and airline officials, and the nature and challenges of the search efforts.

Here are some of the differences between the two events, based on what authorities have publicly disclosed about the AirAsia plane, which lost contact with ground control in Indonesia early Sunday morning, 42 minutes after taking off from Surabaya airport on the way to Singapore with 162 people on board.

FOUL PLAY

Officials believe MH370 was deliberate, while AirAsia was most likely an accident

Relatives of Chinese passengers aboard the missing Malaysia Airlines, flight MH370, turn to journalists to shout their demands for answers after Malaysian government representatives. Image: Ng Han Guan/Associated Press

Authorities suspect Flight 370 was deliberately diverted by someone on board, and suspicions of foul play emerged within days of its disappearance.

There has been no suggestion that the AirAsia flight is anything but an accident, meaning the aircraft should have crashed not far from the spot where it fell off the radar. Indonesia's Transportation Ministry says its pilots asked permission to turn left and fly higher to avoid clouds three minutes before the jet was last seen on radar. That strengthens early speculation that adverse weather, or the pilot's response to it, was a factor in the accident.

SOUTHERN INDIAN OCEAN

MH370 vanished in a vast area, but AirAsia's location is isolated and easier to search

Based on data "pings" from Flight 370, authorities believe the plane crashed into the southern Indian Ocean, a vast, deep, isolated stretch of water far from the last known position of the plane.

Search area for QZ8501

Search area for MH370

Image: Joint Agency Coordination Centre, File/Associated Press

The AirAsia flight was carrying enough fuel for about four hours of flying. Assuming it crashed soon after it dropped off the radar, finding it should be far easier. The Java Sea is a contained body of water, shallow, and crisscrossed by planes and ships. In normal circumstances, a plane leaves wreckage even if it enters the water largely intact. It can take several days for it to be spotted, however.

On Jan. 1, 2007, an Indonesian jetliner carrying 102 people went missing on a domestic flight from Surabaya to Manado. A search effort across land and sea turned up nothing until 11 days later, when a fisherman found the plane's right horizontal stabilizer.

AIRLINE COMMUNICATION

Malaysia Airlines fumbled it; AirAsia is managing — so far

In this March 24, 2014, file photo, a relative of Chinese passengers aboard Malaysia Airlines MH370 grieves after being told of the latest news in Beijing, China. Image: Ng Han Guan/Associated Press

Malaysia Airlines was severely criticized following the Flight 370 disaster for giving out contradictory and vague information. So far, that has not happened with the latest incident.

The boss of AirAsia, Tony Fernandes, has tweeted about the incident and what the company is doing, drawing praise not scorn. Managing communications about the loss of the flight will become more challenging if the wreckage is not found quickly.

The staff in Indonesia have been brave, strong, committed and doing 150 percent for all our guests. My pride for them is enormous. — Tony Fernandes (@tonyfernandes) December 29, 2014

Keeping positive and staying strong. My heart bleeds for all the relatives of my crew and our passangers. Nothing is more important to us. — Tony Fernandes (@tonyfernandes) December 29, 2014

The fact that the overwhelming majority of the passengers are Indonesians and that it was an Indonesian-registered company operating the plane should mean less pressure, however. Around two-thirds of the passengers on Malaysia Airlines Flight 370 were Chinese, with the rest coming from all over the world, only adding to what was already an unprecedented situation.