Advisories issued by international tsunami warning centers. As of 01 October 2014, the Pacific Tsunami Warning Center (P) issues: Tsunami Information Statements (TIS) and Tsunami Threat Messages (TTM). Prior to 01 October 2014, the Pacific Tsunami Warning Center (P) issued: Tsunami Information Bulletins (TIB), Fixed and Expanding Regional Warnings (FRW, ERW), and Ocean-wide or Widespread Watch/Warnings (TWW) for the Pacific; Tsunami Information Statements (TIS), Local, Regional, and Ocean-wide Watches (LTW, RTW, TW) for the wider Caribbean (C). The Japan Meteorological Agency (J), issues: Tsunami Advisories (NWPTA) for the Northwestern Pacific. The US National Tsunami Warning Center (N), formerly know as West Coast/Alaska Tsunami Warning Center, was renamed on 01 October 2013. The US National Tsunami Warning Center issues: Tsunami Information Statements (TIS), Tsunami Advisories (TA), Tsunami Watch/Warnings (TWW) for Canada, the US (including Puerto Rico and the US/British Virgin Islands but excluding Hawaii and US-affiliated Pacific Island countries). Depth (from GCMT solution), epicenter and Moment Magnitude (Mw) from the USGS (G), and preliminary Mw from PTWC, USNTWC, and JMA at action time. Other earthquakes with Mw greater than or equal to 6.5 and a depth no greater than 100 km, as recorded by USGS, have also been included. Wave height and period measurements from sea level gauges (g) reported as amplitude (amp), peak to trough, or greatest value for either flow depth (fd) or runup (r) as indicated. Event location (e.g. name) is derived from PTWC message(s).
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