on Sunday in Shoufeng Township and Fenglin Township, respectively, and both measured a magnitude of 4 on the Richter scale with a seismic intensity
On the country's seismic intensity
scale of zero to seven, the quake registered at five minus, according to the Japan Meteorological Agency.
The quake registered lower 5 on the Japanese seismic intensity
scale of 7 in parts of Miyazaki.
This paper proposes a quantitative seismic intensity
level evaluation during the earthquake so that a counter measure can be resolved to reduce the shakings during the earthquakes.
This wide-area disaster prevention system, which has been under construction since March 2017, is already gathering seismic intensity
and waveform information obtained from seismometers and accelerometers newly installed at 93 sites across Indonesia.
In 2017 national map-scheme of seismic zoning of the country was created, and new seismic intensity
scale is currently in the works.
The earthquake, which struck Hokkaido in the early morning hours of September 6th, reached the maximum intensity in Japans seismic intensity
scale and is the most powerful temblor to have affected the island.
Distribution networks and other services are steadily resuming, but the severity of the damage caused by the earthquake, which registered the highest level on the Japanese seismic intensity
scale of 7, is becoming apparent.
At one point after the powerful quake on Thursday which logged the maximum 7 on Japan's seismic intensity
scale, some 2.95 million homes in Hokkaido were without electricity as the whole prefecture suffered a power outage.
In some areas in the prefecture that sustained serious damage, the quake - measuring up to lower 6 on the Japanese seismic intensity
scale of 7 - was followed by many aftershocks.
The quake measured 4 on Japan's seismic intensity
scale, which peaked at 7 in parts of Miyagi Prefecture and registered 3 on the scale in neighboring Iwate Prefecture, according to the JMA.
The interstory drift ratio (ISDA) as a damage index to express the damage level of a whole structure, while the seismic intensity
is used to express the hazard level of the input earthquake, and spectral acceleration at the fundamental period [S.sub.a] ([T.sub.1]) of the building is commonly used as the seismic intensity