Here's a Muslim organization that appears to be directly helping the people in China and Burma. Muslim Hands has an office in China.
From their website:
"Around the earthquake's epicentre in Wenchuan County and for miles around, homes, schools, offices and mosques have been levelled by the force of the earthquake.
Muslim Hands been working in China for a number of years and has a permanent field office in the Gansu Province.
An experienced team led by Daleel Ulkhairat (MH China) responded quickly to the disaster and have set-up camps in Mianyang City to assist survivors by providing plastic sheeting and shelter, hot cooked food, water and medical assistance.
Teams are also planning to enter two of the most devastated counties of Wenchuan and Beichuan as soon as roads are cleared of rubble and aid is able to flow.
Muslim Hands has launched an urgent appeal to provide further assistance to those affected by the devastating earthquake.
Please donate generously as your support will help save lives insha'Allah."