Vietnam earthquake list

People :
Felt by persons at rest, on upper floors or favorably placed.

People :
Felt indoors; hanging objects may swing, vibración similar a la de paso de camiones ligeros, duración puede ser estimada, no puede ser reconocida como un terremoto.

People :
Por lo general en el interior notado, pero no fuera. Sueño de luz puede ser despertado. La vibración puede ser comparada con el paso de tráfico pesado, o la sacudida de un objeto pesado que cae o golpear el edificio.
Guarniciones :
Las puertas y ventanas de cascabel. Cristalería y vajilla de cascabel. Los líquidos en recipientes abiertos pueden ser ligeramente perturbado. Automóviles pueden balancearse de pie.
Estructuras :
Las paredes y los marcos de los edificios, and partitions and suspended ceilings in commercial buildings, may be heard to creak.

People :
Generally felt outside, and by almost everyone indoors. Most sleepers awakened. A few people alarmed.
Guarniciones :
Small unstable objects are displaced or upset. Some glassware and crockery may be broken. Hanging pictures knock against the wall. Open doors may swing. Cupboard doors secured by magnetic catches may open. Pendulum clocks stop, start, or change rate.
Estructuras :
Some large display windows cracked. A few earthenware toilet fixtures cracked.

People Felt by all. People and animals alarmed. Many run outside. Difficulty experienced in walking steadily.
Guarniciones :
Objects fall from shelves. Pictures fall from walls. Some furniture moved on smooth floors, some unsecured free-standing fireplaces moved. Glassware and crockery broken. Very unstable furniture overturned. Small church and school bells ring. Appliances move on bench or table tops. Filing cabinets or "easy glide" drawers may open (or shut).
Estructuras :
Slight damage to buildings with low standard. Some stucco or cement plaster falls. Large display windows broken. Damage to a few weak domestic chimneys, some may fall.
Medio ambiente :
Los árboles y arbustos se sacuden, o se oye crujir. Material suelto puede ser desalojado de un terreno en pendiente, e.g. diapositivas existentes, taludes, diapositivas de tejas.

People
Alarma general. Dificultad experimentada en pie. Observado por los conductores automovilísticas que se puede dejar de.
Guarniciones :
Suenan las campanas grandes. Los muebles se mueven en suelos lisos, puede moverse en pisos alfombrados. Daños considerables a los contenidos frágiles de los edificios.
Estructuras :
De piedra y paredes de ladrillo sin refuerzo roto. Low edificios estándar craqueados con algunos albañilería menor cae. Algunos casos de daños a los edificios de la mano de obra ordinaria. Arriostrada parapetos, sin soporte de ladrillo Gables, y los ornamentos arquitectónicos caen. Tejas, especialmente cumbreras pueden ser desalojadas. Muchas chimeneas domésticas no reforzados dañados, menudo cayendo desde el techo-line. Los tanques de agua de tipo I se echó. A few instances of damage to brick veneers and plaster or cement-based linings. Unrestrained water cylinders (hot-water cylinders) may move and leak. Some common windows cracked. Suspended ceilings damaged.
Medio ambiente :
Water made turbid by stirred up mud. Small slides such as falls of sand and gravel banks, and small rock-falls from steep slopes and cuttings. Instances of settlement of unconsolidated or wet, or weak soils. Some fine cracks appear in sloping ground. A few instances of liquefaction (i.e. small water and sand ejections).

People Alarm may approach panic. Steering of motorcars greatly affected. Estructuras : Low standard buildings heavily damaged, some collapse. ordinary workmanship buildings damaged, some with partial collapse. Reinforced masonry or concrete buildings damaged in some cases. A few instances of damage to buildings and bridges designed and built to resist earthquakes. Monuments and pre-1976 elevated tanks and factory stacks twisted or brought down. Some pre-1965 infill masonry panels damaged. A few post-1980 brick veneers damaged. Decayed timber piles of houses damaged. Houses not secured to foundations may move. Most unreinforced domestic chimneys damaged, some below roof-line, many brought down. Medio ambiente : Cracks appear on steep slopes and in wet ground. Small to moderate slides in roadside cuttings and unsupported excavations. Small water and sand ejections and localized lateral spreading adjacent to streams, canals, lakes, etc.

Estructuras Many low standard buildings destroyed. Ordinary workmanship buildings heavily damaged, some collapse. Reinforced masonry or concrete buildings damaged, some with partial collapse. Buildings and bridges designed and built to resist earthquakes damaged in some cases, some with flexible frames seriously damaged. Damage or permanent distortion to some buildings and bridges, designed and built to normal use standards. Houses not secured to foundations shifted off. Brick veneers fall and expose frames. Medio ambiente : Cracking of ground conspicuous. Landsliding general on steep slopes. Liquefaction effects intensified and more widespread, with large lateral spreading and flow sliding adjacent to streams, canals, lakes, etc.