Earthquake with magnitude of Md 2.0 on date 09-05-1985 and time 11:52:13 (Italy) in region 2 km SE Visso (MC)

A magnitude Md 2.0 earthquake occured in region: 2 km SE Visso (MC), on

  • 09-05-1985 09:52:13 (UTC)
  • 09-05-1985 11:52:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.92, 13.11 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Visso MC 2 1107 1107
Ussita MC 4 444 1551
Castelsantangelo sul Nera MC 5 281 1832
Preci PG 7 724 2556
Monte Cavallo MC 12 145 2701
Bolognola MC 13 142 2843
Fiordimonte MC 14 202 3045
Norcia PG 14 4957 8002
Acquacanina MC 14 121 8123
Fiastra MC 14 559 8682
Sellano PG 15 1079 9761
Pieve Torina MC 15 1458 11219
Pievebovigliana MC 17 866 12085
Montemonaco AP 18 604 12689
Cerreto di Spoleto PG 19 1075 13764
Muccia MC 19 915 14679
Montefortino FM 19 1178 15857

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
99 Km NE of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 Md 2.0 1985-05-09
09:52:13
42.92 13.11 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 6059
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-09 09:52:13 ± 1.873
Latitude 42.92 ± 0.11
Longitude 13.11 ± 0.08
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 6059

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 13907.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 261
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.0055
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 6059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:10:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1985-05-09T09:52:32.50 10.0 undecidable manual SG 210 0.0055 -3.08 0
--.PO9.Z. 1985-05-09T09:52:28.00 10.0 undecidable manual SG 199 0.0032 0.58 0.6
--.ALP.Z. 1985-05-09T09:52:27.20 10.0 undecidable manual SG 112 0.0032 -0.25 0.6
--.MNS.Z. 1985-05-09T09:52:25.70 10.0 undecidable manual PG 210 0.0055 -0.71 1.2
--.AQU.Z. 1985-05-09T09:52:25.30 10.0 undecidable manual PG 159 0.0053 -0.84 0.8
--.PO9.Z. 1985-05-09T09:52:22.50 10.0 undecidable manual PG 199 0.0032 0.8 1
--.ALP.Z. 1985-05-09T09:52:21.90 10.0 positive manual PG 112 0.0032 0.18 2.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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