M 4.6 - NORTHEASTERN IRAN - 2017-05-20 16:22:52 UTC

I felt this earthquake


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You felt this earthquake. Tell us!

Magnitude	ML 4.6
Region	NORTHEASTERN IRAN
Date time	2017-05-20 16:22:52.7 UTC
Location	35.63 N ; 58.43 E
Depth	2 km
Distances	129 km SW of Mashhad, Iran, Islamic Republic of / pop: 2,308,000 / local time: 20:52:52.7 2017-05-20 44 km N of Kāshmar, Iran, Islamic Republic of / pop: 96,200 / local time: 20:52:52.7 2017-05-20

Source parameters reviewed by a seismologist

More information at:

Institute of Geophysics, University of Tehran Tehran, Iran

International Institute of Earthquake Engineering and Seismology Tehran, Iran

Earthquake View	Interactive Maps View	I felt this earthquake	Contribution Map

Seismicity	Regional Moment tensors	Quick MT solutions	PGA/PGV/Population

Int_Dist	Dist_Time	Donut

No enough data for Intensity/Distance curve

For more information on computation, see the article Bossu et al., 2016:

Thumbnail Based Questionnaires for the Rapid and Efficient Collection of Macroseismic Data from Global Earthquakes, Rémy Bossu, Matthieu Landès, Fréderic Roussel, Robert Steed, Gilles Mazet-Roux, Stacey S. Martin, and Susan Hough. Seismological Research Letter. Oct 2016. doi: 10.1785/0220160120;
Furthermore, to avoid the association with wrong events, we filter testimonies in distance and in intensity depending on the magnitude of the seismic event.


Global view	Regional view	Local view

References for tectonic plate boundaries:
Coffin, M.F., Gahagan, L.M., and Lawver, L.A., 1998, Present-day Plate Boundary Digital Data Compilation. University of Texas Institute for Geophysics Technical Report No. 174, pp. 5.

Maps view: Seismicity from the previous 7 days in the area

Regional instrumental seismicity

This seismicity maps have been generated by concatenating the ISC catalogue (since 1964), the EMSC Euro-Med Bulletin catalogue and the EMSC Real Time catalogue. Therefore, they show the seismicity from 1964 until the earthquake occurrence.

Regional deadly earthquakes from 1500 to origin time

Date

Long.

Lat.

Mag.

Death

Location

1405-11-23	58.8	36.3	7.2	30000	NORTHEASTERN IRAN
1549-02-15	60.0	33.7	6.7	3000	IRAN-AFGHANISTAN BORDER REGION
1619-05-00	58.9	35.1	6.5	800	NORTHEASTERN IRAN
1667-11-18	57.5	37.2	6.9	12000	TURKMENISTAN-IRAN BORDER REGION
1673-07-30	59.3	36.4	7.1	5600	NORTHEASTERN IRAN
1678-00-00	58.6	34.3	6.5	many	NORTHEASTERN IRAN
1695-05-11	57.5	37.1	7.0	360	TURKMENISTAN-IRAN BORDER REGION
1780-00-00	58.0	34.0	6.5	3000	NORTHEASTERN IRAN
1851-06-00	58.5	36.8	6.9	2000	NORTHEASTERN IRAN
1852-02-22	58.4	37.1	5.8	2000	TURKMENISTAN-IRAN BORDER REGION
1871-12-23	58.4	37.4	7.2	2000	TURKMENISTAN-IRAN BORDER REGION
1872-01-06	58.4	37.1	6.3	4000	TURKMENISTAN-IRAN BORDER REGION
1879-04-02	57.4	37.5	6.7	700	TURKMENISTAN-IRAN BORDER REGION
1890-06-28	59.4	36.2	?	many	NORTHEASTERN IRAN
1893-11-17	58.4	37.1	7.1	10000	TURKMENISTAN-IRAN BORDER REGION
1895-01-17	58.4	37.1	6.8	1000	TURKMENISTAN-IRAN BORDER REGION
1903-09-25	58.2	35.2	6.4	200	NORTHEASTERN IRAN
1923-05-25	59.2	35.3	5.5	2219	NORTHEASTERN IRAN
1923-09-17	57.5	37.9	6.4	157	TURKMENISTAN-IRAN BORDER REGION
1925-12-14	58.1	34.6	5.5	500	NORTHEASTERN IRAN
1929-05-01	57.8	37.8	7.2	3257	TURKMENISTAN-IRAN BORDER REGION
1941-02-16	58.9	33.5	6.4	680	EASTERN IRAN
1947-09-23	58.7	33.4	6.9	500	EASTERN IRAN
1948-10-05	58.7	37.7	7.3	19800	TURKMENISTAN-IRAN BORDER REGION
1968-08-31	59.0	34.0	7.3	15000	NORTHEASTERN IRAN
1968-09-01	58.3	34.1	6.4	900	NORTHEASTERN IRAN
1969-01-03	57.8	37.2	5.4	50	TURKMENISTAN-IRAN BORDER REGION
1978-09-16	57.4	33.4	7.4	18220	EASTERN IRAN
1979-01-16	59.5	33.9	6.7	200	EASTERN IRAN
1979-11-14	59.9	34.1	6.5	280	NORTHEASTERN IRAN
1997-02-04	57.3	37.7	6.8	100	TURKMENISTAN-IRAN BORDER REGION
1997-05-10	59.8	33.8	7.3	1572	EASTERN IRAN
2000-02-02	58.2	35.2	5.3	1	NORTHEASTERN IRAN
2012-12-05	59.6	33.5	5.6	8	EASTERN IRAN
2017-04-05	60.5	35.8	6.1	2	NORTHEASTERN IRAN
2017-05-13	57.3	37.7	5.6	3	NORTHEASTERN IRAN

Source:

From 1500 to 1999: T. Utsu ; International Handbook of Earthquake and Engineering Seismology; vol. A; 691-718
From 2000 to 2007: USGS Quality composite earthquake catalog
From 2008: National Centers for Environmental Information (NOAA)

Map created with the testimonies provided by the eyewitnesses (click to enlarge).

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