四川地震最详细数据

2008-05-12

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 http://koo4.blogbus.com/logs/20776413.html

请下这个pdf:

http://earthquake.usgs.gov/eqcenter/pager/
events/us/2008ryan/us/3/onePAGER.pdf

地震别恐慌...去Geoscience Australia网站看看就知道,四月份地球震了几十次...五月到现在也有18次了,而且4-5级很多...

此次地震波传播需要的时间...点上有大图.3分钟就能到北京...好快...

City	Distance (degrees)	Travel Time (min:secs)	Arrival Time UTC	Phase
Beijing, China	13.87	3:16.6	6:31:16.6	Pn

下面资料都来自: http://www.ga.gov.au/bin/listQuakes

Earthquake Details:

Date:	12/05/2008
Time (UTC) hh:mm:ss:	06:28:01
Latitude:	31.120
Longitude:	103.260
Depth (km):	10
Magnitude:	7.8
Felt radius:	2775 km (approx)
Damage radius:	221 km (approx)

Est. Modified Mercalli Intensity	Est. Population Exposure (k = x1000)	Perceived Shaking	Potential Structure Damage
Est. Modified Mercalli Intensity	Est. Population Exposure (k = x1000)	Perceived Shaking	Resistant	Vulnerable
X	117k	Extreme	V. Heavy	V. Heavy
IX	92k	Violent	Heavy	V. Heavy
VIII	866k	Severe	Moderate/Heavy	Heavy
VII	4,781k	Very Strong	Moderate	Moderate/Heavy
VI	13,538k	Strong	Light	Moderate
V	43,966k*	Moderate	V. Light	Light
IV	2,875k*	Light	None	None
II-III	--*	Weak	None	None
I	--*	Not Felt	None	Non

MMI	City	Population
VII	Tianpeng	60k
VI	Linqiong	55k
VI	Chengdu	3950k
VI	Jiangyou	127k
VI	Mianyang	264k
VI	Deyang	152k
V	Tongchuan	58k
V	Ziyang	87k
V	Leshan	154k
V	Luocheng	73k
V	Suining	124k
V	Chonglong	58k
V	Neijiang	546k
V	Nanchong	7150k
V	Langzhong	60k
V	Guangyuan	213k
V	Zigong	689k
V	Nanlong	63k
V	Gaoping	204k
V	Zengjiahe	1k
V	Dongxichang	4k
V	Yongchuan	94k
V	Yibin	242k
IV	Hechuan	97k
IV	Jiangjin	61k
IV	Changsha	1k
IV	Fubaochang	3k
IV	Xiantanchang	1k
IV	Guandu	2k

Earthquake Details

Magnitude	7.8
Date-Time	Monday, May 12, 2008 at 06:28:00 UTC Monday, May 12, 2008 at 02:28:00 PM at epicenter Time of Earthquake in other Time Zones
Location	31.104°N, 103.270°E
Depth	10 km (6.2 miles) set by location program
Region	EASTERN SICHUAN, CHINA
Distances	90 km (55 miles) WNW of Chengdu, Sichuan, China 150 km (95 miles) WSW of Mianyang, Sichuan, China 360 km (225 miles) WNW of Chongqing, Chongqing, China 1545 km (960 miles) SW of BEIJING, Beijing, China
Location Uncertainty	horizontal +/- 5.7 km (3.5 miles); depth fixed by location program
Parameters	NST=228, Nph=228, Dmin=>999 km, Rmss=1.43 sec, Gp= 29°, M-type=moment magnitude (Mw), Version=A
Source	USGS NEIC (WDCS-D)
Event ID	us2008ryan

How do we measure the size of an earthquake?

Magnitude	Description of Effect
less than 3.4	Usually felt by only a few people near the epicentre.
3.5 - 4.2	Felt by people who are indoors and some outdoors; vibrations similar to a passing truck.
4.3 - 4.8	Felt by many people; windows rattle, dishes disturbed, standing cars rock.
4.9 - 5.4	Felt by everyone; dishes break and doors swing, unstable objects overturn.
5.5 - 6.1	Some damage to buildings; plaster cracks, bricks fall, chimneys damaged.
6.2 - 6.9	Much building damage; houses move on their foundations, chimneys fall, furniture moves.
7.0 - 7.3	Serious damage to buildings; bridges twist, walls fracture, many masonry buildings collapse.
7.4 - 7.9	Causes great damage; most buildings collapse.
greater than 8.0	Causes extensive damage; waves seen on the ground surface, objects thrown into the air.

Did you know?
On average, the Earth experiences each year:
    * one earthquake of magnitude 8
    * ten earthquakes of magnitude 7
    * one hundred earthquakes of magnitude 6