What kind of events are there for New Year in Shizuoka?

In Ishigaki in Shizuoka city strawberry picking starts from January first. And at Atami Baien there is a Ume festival, In Toi a rice cake throwing event an also recommended is the Mishima shopping street New Year's thanksgiving festival.

Please tell Oden shops in Shizuoka that are popular with the locals.

There are Oden shops at various places. You can get an Oden map at the tourist information in Shizuoka station.

Please tell me what is a typical souvenir from Shizuoka prefecture.

Standard souvenirs are cocco Unagi pie, Abekawa mochi, canned Shizuoka oden, Shizuoka cola etc. There are interesting things.

I am planning to climb Mt. Fuji. From where can I take a bus?

From JR Mishima, Shin Fuji, Fuji, Fujinomiya to Fujinomiya entrance. From Gotemba station to Gotemba entrance or Subari entrance there are busses for climbers. Please use them.

What food is good in summer in Shizuoka?

There are so many foods that I don’t know where to start.
As for sea foods there are too many to mention.
You should at least try eating Kinmedai (Splendid Alfonsino) from Izu.
In Hamamatsu and Mishima eel is best, Fukuroi is famous for crown melon, and Yui has Sakura shrimp and whitebait. Besides that I
haven’t mentoned green tea, Mandarin oranges and wasabi or Japanese horseradish yet.
Local Sake in each area is delicious too. And there is a wide variety of semi-gourmet dishes like Fujinomiya yakisoba (fried noodles) and Mishima croquettes.

Please tell me about semi-gourmet dishes in Shizuoka.

There are various dishes depending on the area.
In the western part there are Hamamatsu dumplings (gyouza) and Tamago fuwafuwa (fluffy eggs) .
In the central part Shizuoka oden ( a dish consisting of slices of boiled daikon, cakes of konnyaku, small taros, chikuwa, hard boiled eggs, balls of processed mince fish, etc. heated in a shoyu based liquid) and Shimizu entrails curry.
The eastern area has Fujinomiya yakisoba (fried noodles) and Tsuke Napolitan (Spaghetti eaten Japanese style).
In the Izu area you can find Mishima croquettes, salty bonito udon (noodles) and so on.

Where and when are fireworks displays held?

I will introduce you recommended fireworks displays!

July 22nd. And 23rd. Suwajinja Hounouenka in Kosai city, August 6th. Fukuroi Enshyu fireworks display Fukuroi city.
July 30th. Andokawa fireworks display (Shizuoka city).
July 30th., 31st. Numazu summer festival Kanogawa fireworks display (Numazu city).
July 24th., 30th. August 5th., 8th., 18th., 21st., and 27th. Atami fireworks display on the sea (Atami city).

Are there any festivals?

There are plenty of festivals, they are introduced in public blogs. Please check out the following:
http://www.shizuoka-guide.com/blog-trip/index.php

Are there any recommended foods you can only eat in Shizuoka?

You really should try Sakura shrimp!
Excellent as a main dish as well as a side dish. Shrimp tempura is recommended the most!

Do I have to worry about radioactive contamination of food? (fish, tea and so on)

There was an uproar about green tea that had a level of cesium higher than the regulated standard the other day. After that no radiation contamination was detected in any tea sample. Concerning seafood until now there seems to be no problem.
Concerning beef at the present there are some problems. When we know more about the situation I will let you know.

Are there still earthquakes?

There seem to be earthquakes in each area. Fortunately we can hardly feel them here in Shizuoka prefecture. Since they are unpredictable please be careful.

Are there still power outages (planned outages)

There don’t seem to be planned outages scheduled right now. If they are going to be scheduled I will let you know through the homepage, blog or twitter.