Earthquake with magnitude of Md 2.7 on date 04-06-1986 and time 17:07:18 (Italy) in region 3 km W Cittareale (RI)

A magnitude Md 2.7 earthquake occured in region: 3 km W Cittareale (RI), on

  • 04-06-1986 15:07:18 (UTC)
  • 04-06-1986 17:07:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.12 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
Cittareale RI 3 482 482
Posta RI 11 694 1176
Borbona RI 12 617 1793
Accumoli RI 14 667 2460
Amatrice RI 14 2657 5117
Leonessa RI 14 2435 7552
Monteleone di Spoleto PG 14 599 8151
Cascia PG 14 3217 11368
Montereale AQ 15 2581 13949
Capitignano AQ 18 665 14614
Poggiodomo PG 18 117 14731
Micigliano RI 19 127 14858
Cagnano Amiterno AQ 20 1369 16227
Norcia PG 20 4957 21184

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
39 Km E of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
86 Km E of Viterbo (67173 inhabitants)
91 Km W of Chieti (51815 inhabitants)
91 Km W of Pescara (121014 inhabitants)
96 Km NE of Roma (2864731 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 2.7 1986-06-04
15:07:18
42.62 13.12 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 28629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-06-04 15:07:18 ± 0.859
Latitude 42.62 ± 0.04
Longitude 13.12 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 28629

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) 5221.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 267
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.003
Epicentral distance of station farthest from the epicenter (degree) 0.00931
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:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 28629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:30:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SD1.Z. 1986-06-04T15:07:56.00 10.0 undecidable manual SG 150 0.0093 1.2 0.1
--.RDP.Z. 1986-06-04T15:07:51.00 10.0 undecidable manual SG 199 0.0082 0.48 0.5
--.SD1.Z. 1986-06-04T15:07:39.00 10.0 undecidable manual PG 150 0.0093 -0.45 1.2
--.RDP.Z. 1986-06-04T15:07:37.00 10.0 undecidable manual PG 199 0.0082 0.02 1.8
--.MNS.Z. 1986-06-04T15:07:33.00 10.0 undecidable manual SG 234 0.0036 -0.91 0.3
--.AQU.Z. 1986-06-04T15:07:31.00 10.0 undecidable manual SG 141 0.003 -0.52 0.8
--.MNS.Z. 1986-06-04T15:07:28.00 10.0 undecidable manual PG 234 0.0036 0.61 1.2
--.AQU.Z. 1986-06-04T15:07:26.00 10.0 undecidable manual PG 141 0.003 -0.01 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download