Lifted the earth out of rasatala
'Rasatala-gatam mahim uddharisyan... saukaram vapuh' (SB 1.3.7).
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Varaha
वराह
Also known as सौकरं वपुः · Sukara-vapu (the boar form)
Varaha is Vishnu's boar avatara (second in the Bhagavata's list here): assuming the sukara form He raised the earth sunk in rasatala; puranic tradition also joins the slaying of Hiranyaksha to Him (not part of the processed verses). SB 1.3.7: taking 'saukaram vapuh' as 'yajnesha', He lifted the earth for her welfare.
Śrīmad Bhāgavata Mahāpurāṇa 1.3.7 — Sanskrit Wikisource (pinned oldid=369178)
Varaha — avatara of — Krishna
The Lord of sacrifice took the boar form: 'yajnesah saukaram vapuh' (SB 1.3.7). Evidence: EXPLICIT.
Varaha — rescued — Earth (Mahi)
Varaha lifted the earth that had sunk to rasatala: 'rasatala-gatam mahim uddharisyan' (SB 1.3.7). Direction verified. Evidence: EXPLICIT.