[In English] Problem resolved at STS-2 OSW station (EW and UD component) Jul 15, 2015 Data quality of STS-2 OSW station (EW and UD component) returns to normal. This maintenance period is between July 1-3, 2015. ------------------------------------------------------------------------------------------------------------------------ Caution: Possible sensor malfunction at STS-2 OSW station (EW and UD component) Jun 26, 2015 Immediately after the earthquake occurred west off Ogasawara on May 30, 2015, EW and UD component data (?HE and ?HZ) recorded at STS-2 OSW station has been ill-behaved due to possible malfunction of instrument.

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