SUMMERTIME : THEATER : Rockin’ the House : ‘The Who’s Tommy’ at the Universal Amphitheatre leads the local stage lineup. Many venues are still regrouping after January’s shaker.

In spite of the gradual decline in aftershocks after the January quake, there’s still a lot of shaking going on in the San Fernando Valley theater community.

Some theaters are putting out a helping hand to their natural rivals, and the spirit of the “fabulous invalid,” an especially appropriate nickname for the theater in this time and place, is not at all dampened. The show goes on.

Although a number of theaters are quiet during the next two months, busy with community projects and planning their fall seasons, a wide variety of summer theater events is available.

The biggest tremor probably will be caused by the Universal Amphitheatre’s July 13-Aug. 14 run of Pete Townshend’s “The Who’s Tommy.” This Des McAnuf-directed production with an oversize stage floor built in New York for this production, began its life at the La Jolla Playhouse and went on to Broadway, where it won five Tony awards.

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Originally scheduled to close July 31, the show’s the immense ticket demand has brought about the two-week extension. This is the first time local audiences have had a chance to see McAnuf’s re-creation (he also wrote the book) of The Who’s rock classic.

One of the theaters most affected by the quake was Actors Alley, which was ready to open its first production in a new mid-size home at North Hollywood’s El Portal Theatre on Jan. 21. El Portal was done in on the 17th. The company opened the play “The Audit” at L.A. Valley College, using the same space for its second production, James Thurber’s “The Male Animal.”

On July 13, with El Portal still being righted, Actors Alley will open its new season with a summer production of Jim Geoghan’s “Light Sensitive” in an immense green and white tent erected on the Academy Plaza, at the intersection of Magnolia and Lankershim boulevards.

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The play, directed by Everett Chambers, concerns a blind New York cabby who has drifted into alcohol and self-pity, until a Lighthouse for the Blind reader enters his life and turns it around.

Actors Alley may be accused of loitering within tent, so to speak. The group’s entire season will be staged at the same location, with Alan Ayckbourn’s “Round and Round the Garden,” directed by Marcia Rodd, beginning its under-the-canvas previews Aug. 31.

Another venue sadly affected by earthquake damage, American Renegade Theatre, is recovering in time to open Layce Gardner’s “Under the Moon” on July 29 for a six-week run. The drama, set in the South of 1958, explains some of today’s headlines by outlining the tale of a white mother whose daughter is seeing a young black man. The mother’s anguished racism hides the fact that the daughter’s father was black and is an attempt to keep the girl from making what the mother feels would be the same mistake.

When Renegade’s sizable musical “Knockin’ ‘Em Dead” was displaced in the January shuffle, Ed Gaynes’ West End Playhouse in Van Nuys opened its doors to the production, a good-neighbor gesture that has typified Valley theater in recent months. Unaffected by the quake, the West End forges ahead with a production of Deborah Shaw’s “The Cosmic Pull,” a psychological drama about a woman coming to terms with her best friend’s imminent demise. Under Pamela Hall’s direction, the production opens July 7 and will run through Aug. 13.

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The always active NoHo district also will see an evening of two one-act comedies at the Limelight Playhouse: “Eight Minutes of Unpredictability” by Brett Pearson, and Nicole Montgomery’s “There Is No Happy Medium,” under the umbrella title of “An Evening of Hostility,” playing July 8 through Aug. 14.

And at Limelight honcho Dan Hirsch’s other North Hollywood space, the NoHo Studios, J. Tom Graham’s hit comedy about matrimony in Texas, “For Marrieds Only,” will have its West Coast premiere Aug. 5, playing through Sept. 18.

Out west, in Topanga Canyon, Will Geer’s Theatricum Botanicum, probably the area’s busiest summer theater arena, will end its run of “Macbeth” on July 22. In the group’s usual true repertory style, a new English translation of Moliere’s “Educated Women” opens July 3 and runs through Aug. 21.

Hoping to repeat the success of last season’s critically acclaimed production of Tennessee Williams’ “A Streetcar Named Desire,” that production’s director, Heidi Davis, will be staging Williams’ “The Glass Menagerie,” with Ellen Geer as the tyrannical Amanda. “Menagerie” will open Aug. 13 and play through Sept. 18.

A Guide to Summer Stage

* Actors Alley: (818) 508-4200.

* American Renegade Theatre: (818) 763-4430.

* Limelight Playhouse: (818) 753-7726.

* NoHo Studios: (818) 753-3330.

* Theatricum Botanicum: (310) 455-3723.

* Universal Amphitheatre: (213) 480-3232.

* West End Playhouse: (818) 904-0444.