What is a strike on an action brought by an inmate who has had three prior actions or appeals dismissed as frivolous, malicious or frivolous?

frivolous, malicious, fail to state a claim upon which relief may be granted, or that seek monetary relief from a defendant who is immune from such relief. 28 U.S.C. 1915A(b)(1),(2); 28 U.S.C. 1915(e)(2)(B)(i)-(iii). If an action is dismissed on one of these three basis, a strike is imposed per 28 U.S.C. 1915(g). An inmate who has had three or more prior actions or appeals dismissed as frivolous, malicious, or for failure to state a claim upon which relief may be granted, and has not alleged imminent danger of serious physical injury does not qualify to proceed in forma pauperis. See 28 U.S.C. 1915(g); Richey v. Dahne, 807 F.3d 1201, 1208 (9th Cir. 2015).