Earthquake with magnitude of Md 3.2 on date 13-12-1986 and time 22:30:57 (Italy) in region 1 km S Micigliano (RI)

A magnitude Md 3.2 earthquake occured in region: 1 km S Micigliano (RI), on

  • 13-12-1986 21:30:57 (UTC)
  • 13-12-1986 22:30:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.44, 13.06 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
Micigliano RI 1 127 127
Antrodoco RI 3 2588 2715
Borgo Velino RI 4 972 3687
Castel Sant'Angelo RI 6 1308 4995
Posta RI 10 694 5689
Borbona RI 10 617 6306
Cittaducale RI 11 6828 13134
Cantalice RI 13 2755 15889
Cagnano Amiterno AQ 14 1369 17258
Concerviano RI 14 291 17549
Leonessa RI 16 2435 19984
Poggio Bustone RI 16 2055 22039
Petrella Salto RI 16 1197 23236
Rieti RI 17 47698 70934
Montereale AQ 18 2581 73515
Scoppito AQ 18 3727 77242
Barete AQ 18 737 77979
Rivodutri RI 19 1253 79232
Belmonte in Sabina RI 19 636 79868
Pizzoli AQ 20 4326 84194

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of L'Aquila (69753 inhabitants)
36 Km E of Terni (111501 inhabitants)
56 Km NE of Guidonia Montecelio (88673 inhabitants)
57 Km NE of Tivoli (56533 inhabitants)
58 Km W of Teramo (54892 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
77 Km NE of Roma (2864731 inhabitants)
78 Km E of Viterbo (67173 inhabitants)
87 Km N of Velletri (53303 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
92 Km W of Chieti (51815 inhabitants)
92 Km SE of Perugia (166134 inhabitants)
95 Km W of Pescara (121014 inhabitants)
97 Km NE of Pomezia (62966 inhabitants)
100 Km NE of Aprilia (73446 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 3.2 1986-12-13
21:30:57
42.44 13.06 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 38149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-12-13 21:30:57 ± 0.597
Latitude 42.44 ± 0.02
Longitude 13.06 ± 0.04
Depth (km) 5 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 38149

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) 3999.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.03732
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

Md:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 38149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:38:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FO1.Z. 1986-12-13T21:32:02.50 10.0 undecidable manual PN? 357 0.0373 0.87 0.2
--.RBL.Z. 1986-12-13T21:32:01.00 10.0 undecidable manual PN 5 0.0361 1.3 0.3
--.ARV.Z. 1986-12-13T21:31:34.00 10.0 undecidable manual SG 355 0.0095 -0.65 0.8
--.SD1.Z. 1986-12-13T21:31:29.00 10.0 undecidable manual SG 142 0.0083 -1.15 0.5
--.CRE.Z. 1986-12-13T21:31:25.50 10.0 undecidable manual PN 326 0.0128 1.28 0.7
--.MAO.Z. 1986-12-13T21:31:24.50 10.0 undecidable manual PN 269 0.0126 0.61 1.4
--.DUI.Z. 1986-12-13T21:31:23.00 10.0 undecidable manual PN 126 0.0117 0.55 1.4
--.ARV.Z. 1986-12-13T21:31:17.50 10.0 undecidable manual PG 355 0.0095 -1.58 0.4
--.SD1.Z. 1986-12-13T21:31:15.50 10.0 undecidable manual PG 142 0.0083 -0.98 1
--.RMP.Z. 1986-12-13T21:31:12.00 10.0 undecidable manual PG 203 0.0061 -0.09 1.7
--.ASS.Z. 1986-12-13T21:31:11.20 10.0 undecidable manual PG 334 0.0062 -0.99 1
--.AQU.Z. 1986-12-13T21:31:09.50 10.0 undecidable manual SG 109 0.0023 1.2 0.4
--.AQU.Z. 1986-12-13T21:31:03.80 10.0 positive manual PG 109 0.0023 -0.07 3.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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