Earthquake with magnitude of Md 2.6 on date 15-05-1986 and time 10:17:25 (Italy) in region 4 km NE Micigliano (RI)

A magnitude Md 2.6 earthquake occured in region: 4 km NE Micigliano (RI), on

  • 15-05-1986 08:17:25 (UTC)
  • 15-05-1986 10:17:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.47, 13.09 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 4 127 127
Posta RI 6 694 821
Borbona RI 6 617 1438
Antrodoco RI 6 2588 4026
Borgo Velino RI 8 972 4998
Castel Sant'Angelo RI 10 1308 6306
Cagnano Amiterno AQ 11 1369 7675
Montereale AQ 14 2581 10256
Leonessa RI 14 2435 12691
Cittaducale RI 15 6828 19519
Cantalice RI 15 2755 22274
Barete AQ 16 737 23011
Poggio Bustone RI 17 2055 25066
Cittareale RI 17 482 25548
Pizzoli AQ 17 4326 29874
Scoppito AQ 18 3727 33601
Capitignano AQ 18 665 34266
Concerviano RI 19 291 34557
Rivodutri RI 20 1253 35810
Petrella Salto RI 20 1197 37007

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of L'Aquila (69753 inhabitants)
38 Km E of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
61 Km NE of Guidonia Montecelio (88673 inhabitants)
62 Km NE of Tivoli (56533 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
81 Km E of Viterbo (67173 inhabitants)
82 Km NE of Roma (2864731 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
90 Km W of Chieti (51815 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
91 Km N of Velletri (53303 inhabitants)
92 Km W of Pescara (121014 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 2.6 1986-05-15
08:17:25
42.47 13.09 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 27419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-15 08:17:25 ± 0.21
Latitude 42.47 ± 0.01
Longitude 13.09 ± 0.01
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 27419

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) 1843
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00923
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:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 27419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:28:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SD1.Z. 1986-05-15T08:17:58.00 10.0 undecidable manual SG 145 0.0083 0.04 0.6
--.ARV.Z. 1986-05-15T08:17:46.00 10.0 undecidable manual PG 354 0.0092 0.11 1.5
--.SD1.Z. 1986-05-15T08:17:44.50 10.0 undecidable manual PG 145 0.0083 0.41 1.1
--.MNS.Z. 1986-05-15T08:17:37.00 10.0 undecidable manual SG 253 0.0028 -0.4 0.9
--.AQU.Z. 1986-05-15T08:17:35.80 10.0 undecidable manual SG 117 0.0023 0.5 0.7
--.MNS.Z. 1986-05-15T08:17:32.50 10.0 undecidable manual PG 253 0.0028 0.27 1.8
--.AQU.Z. 1986-05-15T08:17:30.00 10.0 undecidable manual PG 117 0.0023 -1.01 0.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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