Question: One example of a teletsunami was caused by the 1964 event also known as what holiday-themed occurrence?
Context: Balloonfest '86 was a 1986 event in which the United Way of Cleveland in Ohio set a world record by releasing almost one and a half million balloons.  The event was intended to be a harmless fundraising publicity stunt, but the balloons drifted back over the city, Lake Erie and land in the surrounding area, and caused problems for traffic and a nearby airport.  The event also interfered with a United States Coast Guard search for two boaters who were later found drowned.  In consequence, the organizers and the city faced lawsuits seeking millions of dollars in damages, and cost overruns put the event at a net loss. Wildlife observation is the practice of noting the occurrence or abundance of a dead or living animal species at a specific location and time.  The process of scientific wildlife observation includes the reporting of what (diagnosis of the species), where (geographical location), when (date and time), who (details about observer), and why (reason for observation, or explanations for occurrence).  This outlines the basic information needed to collect data for a wildlife observation; which can also contribute to scientific investigations of distribution, habitat relations, trends, and movement of wildlife species.  One example of this type of activity is bird watching.  Wildlife observation allows for the study of organisms with minimal disturbance to their ecosystem depending on the type of method or equipment used.  The use of equipment such as unmanned aerial vehicles (UAVs), more commonly known as drones, may disturb and cause negative impacts on wildlife.  Specialized equipment can be used to collect more accurate data. The 2010 Northern Hemisphere summer heat waves included severe heat waves that impacted most of the United States, Kazakhstan, Mongolia, China, Hong Kong, North Africa and the European continent as a whole, along with parts of Canada, Russia, Indochina, South Korea and Japan during May, June, July, and August 2010.  The first phase of the global heatwaves was caused by a moderate El Niño event, which lasted from June 2009 to May 2010.  The first phase lasted only from April 2010 to June 2010, and caused only moderate above average temperatures in the areas affected.  But it also set new record high temperatures for most of the area affected, in the Northern Hemisphere.  The second phase (the main, and most devastating phase) was caused by a very strong La Niña event, which lasted from June 2010 to June 2011.  According to meteorologists, the 2010–11 La Niña event was one of the strongest La Niña events ever observed.  That same La Niña event also had devastating effects in the Eastern states of Australia.  The second phase lasted from June 2010 to October 2010, caused severe heat waves, and multiple record-breaking temperatures.  The heatwaves began on April 2010, when strong anticyclones began to develop, over most of the affected regions, in the Northern Hemisphere.  The heatwaves ended in October 2010, when the powerful anticyclones over most of the affected areas dissipated. Repetition blindness (RB) is a phenomenon observed in rapid serial visual presentation.  People are sometimes poor at recognizing when things happen twice.  Repetition blindness is the failure to recognize a second happening of a visual display.  The two displays are shortly shown usually for about 150 milliseconds, and then they are shown within 500 milliseconds of each other (Kanwisher, 1987).  Repetition blindness tasks usually are words in lists and in sentences.  They are called phonologically similar items (Bavelier & Potter, 1992).  There are also pictures, and words that include pictures.  An example of this is a picture of the sun and the word sun (Bavelier, 1994).  The most popular task used to examine repetition blindness is to show words one after another on a screen fast in which participants must recall the words that they saw.  This task is known as the rapid serial visual presentation (RSVP).  Repetition blindness is present if missing the second word creates an inaccurate sentence.  An example of this is "When she spilled the ink there was ink all over.”  An RSVP sequence participants will recall seeing "When she spilled the ink there was all over."  However, they are missing the second occurrence of "ink" (Kanwisher, 1987).  This finding supports that people are "blind" for the second occurrence of a repetitive item in an RSVP series. The 1964 Alaskan earthquake, also known as the Great Alaskan earthquake and Good Friday earthquake, occurred at 5:36 PM AST on Good Friday, March 27.  Across south-central Alaska, ground fissures, collapsing structures, and tsunamis resulting from the earthquake caused about 139 deaths. A teletsunami (also called an ocean-wide tsunami, distant tsunami, distant-source tsunami, far-field tsunami, or trans-ocean tsunami) is a tsunami that originates from a distant source, defined as more than 1,000 km away or three hours' travel from the area of interest, sometimes travelling across an ocean.  All teletsunamis have been generated by major earthquakes such as the 1755 Lisbon earthquake, 1960 Valdivia earthquake, 1964 Alaska earthquake, and 2004 Indian Ocean earthquake. In electronic commerce, conversion marketing is the act of marketing with the intention of increasing "conversions", that is, site visitors who are paying customers.  The process of improving the conversion rate is called conversion rate optimization.  However, different sites may consider a "conversion" to be some sort of result other than a sale.  One example of a conversion event other than a sale is if a customer were to abandon an online shopping cart, the company could market a special offer, for example, free shipping, to convert the visitor into a paying customer.  A company may also try to recover the abandoner through an online engagement method such as proactive chat in an attempt to assist the customer through the purchase process. An anniversary is the date on which an event that took place or an institution was founded in a previous year, and may also refer to the commemoration or celebration of that event.  For example, the first event is the initial occurrence or, if planned, the inaugural of the event.  One year later would be the first anniversary of that event.  The word was first used for Catholic feasts to commemorate saints. Whiteford raced from the mid 1930s through to 1975 with a short period of inactivity during the 1960s.  He was best known as a competitor in the Australian Grand Prix which he won three times in four years.  He raced a Talbot-Lago T26 Formula One car which he used to win his second and third Grands Prix.  His third win was at the first Albert Park street circuit which today hosts the modern Australian Grand Prix.  Whiteford first contested the Australian Grand Prix in 1948 and continued to compete in the race regularly up to 1961 with a final appearance in the 1964 event.  Whiteford also raced touring cars well into the 1970s.  As a regular member of the Datsun Racing Team he was a fixture in small capacity Datsuns, usually as partner to John Roxburgh. The flags of the counties of the United States of America exhibit a wide variety of regional influences and local histories, as well as widely different styles and design principles.  For example, some Floridian and Alabamian municipality flags feature a saltire, due to saltires being used on their state flags.  Some Maryland county flags feature the coat of arms of the Calvert family, as it is featured on the Maryland state flag, and due to the Calvert family's prominence in Maryland history.  Many counties went decades without a flag, until a certain event, such as a local sesquicentennial or the American bicentennial, spurred the creation of a flag.  Frederick County, Maryland is one example, in 1976, it hosted a contest, asking the public to submit their designs to a commission.  A panel then reviewed the five winning entries, choosing one to become the official county flag.  Frederick County's example is typical of the flag adoption processes that many counties undertook with their flags.  The 250th anniversary of Augusta County, Virginia's founding also spurred the creation of a flag, in 1988.  Some flags, such as the flags of Montgomery County, Maryland, and Loudoun County, Virginia, were created by foreign entities, such as the College of Arms in the United Kingdom.
Answer: Good Friday earthquake