Sounds like you have got about as much covered communications wise as can be expected.

Some possible additions though,

An external high gain directional Yagi antenna for your cell phone. This may allow you to connect to cell stations which aren't damaged or taken out.

Solar PV power device to keep your cell phone working without worrying about the battery drain.

Learn all that there is to use functionality wise on your cell phone. Voice calls might be unavailable and there might be considerable delays to SMS. You may find WAP communications are available to send and receive email through a WAP portal.

http://mail2web.com/wap/

Cable DSL might still be functioning. The main problem here might be the lack of ability to power your DSL cable modem/router. Therefore a UPS might be very useful to power this kit. A 3G capable router or USB dongle might provide an additional comms link. VOIP telephone calls may well then be possible using various Ethernet adapters.

A foreign emergency service telephone number might be useful, such as the UK Coast Guard. You might get a higher priority if the call comes in from a 3rd party and there is some diplomacy, PR, international relations, news media etc at stake especially if you happen to be a NATO general visiting his Grandma on his day off and you are buried under some rubble, ahem...

Also it might be an idea to find out when your telephone twisted pair land line cable goes from your property. The break may only be a few metres away in an earthquake. It should be easy to duct tape a spare POTS hand set to the end of the break.