Aid from Cornwall is being sent to help Indonesia cope with the aftermath of the earthquake.
The boxes include a 10-man tent
The Shelterbox charity, based in Helston, is initially sending 250 boxes of lifesaving equipment which will provide shelter for 2,500 people.
More than 3,000 people were killed when quake hit near Yogyakarta.
A team of three volunteers will take the Shelterboxes to Jakarta, but co-ordinator Joe Cannon says it will be a tricky operation.
Airfield broken up
He said: "We are having to go into Jakarta. We would ideally like to go into Yogyakarta which is further down the coast.
"The epicentre is on the island of Java on the south coast, but the airfield is broken up, so we are back to the normal problem in our disaster work of having to move stuff by whatever means we can."
The UK has pledged £3m in assistance to the country, which is suffering its worst disaster since the 2004 tsunami.
Other agencies said that they had equipment ready to be flown out when requests come in and West Country-based search and rescue charity Rapid UK said 15 of its volunteers were on stand-by.
Shelterbox, founded in Helston in 2000, sends vital aid to countries around the world which have been devastated by natural disasters.
The boxes include a 10-man tent, sleeping bags, cooking stove and utensils, tool kit, plastic bags and water purification tablets.
They also include children's activity packs, containing pencils, crayons and colouring books.
In recent years Shelterbox has sent boxes to victims of earthquakes, typhoons, hurricanes in Africa, India, Pakistan, Darfur and countless other area.