Earthquake with magnitude of Md 3.0 on date 22-05-1986 and time 14:37:13 (Italy) in region 2 km E Pioraco (MC)

A magnitude Md 3.0 earthquake occured in region: 2 km E Pioraco (MC), on

  • 22-05-1986 12:37:13 (UTC)
  • 22-05-1986 14:37:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.18, 13.01 at 5 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
Pioraco MC 2 1134 1134
Castelraimondo MC 5 4587 5721
Sefro MC 6 422 6143
Fiuminata MC 6 1402 7545
Camerino MC 7 6974 14519
Gagliole MC 8 620 15139
Matelica MC 8 9981 25120
Esanatoglia MC 9 2034 27154
Muccia MC 11 915 28069
Serravalle di Chienti MC 13 1070 29139
Pievebovigliana MC 15 866 30005
San Severino Marche MC 15 12726 42731
Serrapetrona MC 15 966 43697
Pieve Torina MC 16 1458 45155
Cerreto d'Esi AN 16 3817 48972
Fiordimonte MC 17 202 49174
Caldarola MC 18 1823 50997
Belforte del Chienti MC 19 1886 52883
Gualdo Tadino PG 19 15208 68091
Fabriano AN 19 31480 99571
Nocera Umbra PG 20 5839 105410
Fiastra MC 20 559 105969

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
64 Km SW of Ancona (100861 inhabitants)
74 Km S of Fano (60888 inhabitants)
75 Km NE of Terni (111501 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
97 Km E of Arezzo (99543 inhabitants)
98 Km NW of L'Aquila (69753 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 3.0 1986-05-22
12:37:13
43.18 13.01 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 27839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-22 12:37:13 ± 0.255
Latitude 43.18 ± 0.01
Longitude 13.01 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 27839

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) 2942.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.0272
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 27839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:29:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CTI.Z. 1986-05-22T12:38:02.50 10.0 undecidable manual PN 341 0.0272 0.64 0.7
--.TRI.Z. 1986-05-22T12:37:56.50 10.0 undecidable manual PN 11 0.0232 0.7 0.7
--.SD1.Z. 1986-05-22T12:37:42.00 10.0 undecidable manual PN 157 0.0142 -0.11 1.6
--.MNS.Z. 1986-05-22T12:37:42.50 10.0 undecidable manual SG 196 0.0074 -0.6 0.8
--.CRE.Z. 1986-05-22T12:37:32.00 10.0 undecidable manual PG 299 0.0079 0.41 1.6
--.AQU.Z. 1986-05-22T12:37:32.00 10.0 undecidable manual PG 160 0.0079 0.61 1.3
--.MNS.Z. 1986-05-22T12:37:29.50 10.0 undecidable manual PG 196 0.0074 -1.09 0.5
--.ARV.Z. 1986-05-22T12:37:25.00 10.0 undecidable manual SG 351 0.0028 -0.99 0.4
--.ARV.Z. 1986-05-22T12:37:20.00 10.0 undecidable manual PG 351 0.0028 -0.72 1.1
--.ASS.Z. 1986-05-22T12:37:20.50 10.0 undecidable manual PG 245 0.0025 0.52 1.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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