Earthquake with magnitude of Md 2.5 on date 03-06-1985 and time 23:53:13 (Italy) in region 7 km S Civitella Alfedena (AQ)

A magnitude Md 2.5 earthquake occured in region: 7 km S Civitella Alfedena (AQ), on

  • 03-06-1985 21:53:13 (UTC)
  • 03-06-1985 23:53:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7070, 13.9230 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
Civitella Alfedena AQ 7 296 296
Settefrati FR 7 728 1024
Villetta Barrea AQ 8 653 1677
Picinisco FR 8 1218 2895
Barrea AQ 8 726 3621
San Donato Val di Comino FR 9 2107 5728
Alfedena AQ 10 864 6592
San Biagio Saracinisco FR 10 349 6941
Pizzone IS 10 329 7270
Scontrone AQ 11 574 7844
Opi AQ 11 420 8264
Gallinaro FR 12 1269 9533
Montenero Val Cocchiara IS 12 538 10071
Villa Latina FR 12 1241 11312
Castel San Vincenzo IS 13 516 11828
Atina FR 14 4316 16144
Alvito FR 15 2713 18857
Scapoli IS 15 680 19537
Pescasseroli AQ 16 2203 21740
Cerro al Volturno IS 16 1281 23021
Rocchetta a Volturno IS 16 1113 24134
Belmonte Castello FR 17 739 24873
Vallerotonda FR 17 1581 26454
Castel di Sangro AQ 18 6538 32992
Rionero Sannitico IS 18 1118 34110
Vicalvi FR 18 783 34893
Acquafondata FR 18 263 35156
Posta Fibreno FR 19 1139 36295
Casalattico FR 19 574 36869
Sant'Elia Fiumerapido FR 19 6166 43035
Casalvieri FR 19 2698 45733
Colli a Volturno IS 19 1349 47082
Acquaviva d'Isernia IS 19 425 47507

Municipalities with at least 50000 inhabitants

An earthquake occurred to
75 Km S of Chieti (51815 inhabitants)
78 Km NW of Caserta (76326 inhabitants)
84 Km SE of L'Aquila (69753 inhabitants)
85 Km N of Aversa (53047 inhabitants)
88 Km S of Pescara (121014 inhabitants)
89 Km E of Latina (125985 inhabitants)
90 Km N of Giugliano in Campania (122974 inhabitants)
92 Km S of Montesilvano (53738 inhabitants)
93 Km N of Marano di Napoli (59874 inhabitants)
93 Km NW of Acerra (59573 inhabitants)
93 Km NW of Afragola (65057 inhabitants)
94 Km NW of Casoria (77642 inhabitants)
95 Km E of Velletri (53303 inhabitants)
96 Km NW of Benevento (60091 inhabitants)
97 Km N of Pozzuoli (81661 inhabitants)
97 Km E of Tivoli (56533 inhabitants)
100 Km N of Napoli (974074 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
Bulletin
Rev1000
Md 2.5 1985-06-03
21:53:13
41.707 13.923 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 7929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-03 21:53:13 ± 0.41
Latitude 41.7070 ± 0.0339
Longitude 13.9230 ± 0.0327
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 7929

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) 4640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.01481
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 7929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SOR.Z. 1985-06-03T21:53:53.00 10.0 undecidable manual SN 164 1.1544 1.2 0.3
--.AS1.Z. 1985-06-03T21:53:44.00 10.0 undecidable manual PN 325 1.6428 1.76 0.3
--.SOR.Z. 1985-06-03T21:53:36.10 10.0 undecidable manual PN 164 1.1544 0.45 1.3
--.PO9.Z. 1985-06-03T21:53:36.50 10.0 undecidable manual PN 320 1.1211 1.34 0.7
--.MSC.Z. 1985-06-03T21:53:33.30 10.0 undecidable manual SG 175 0.5106 1.21 0.4
--.SGG.Z. 1985-06-03T21:53:31.50 10.0 undecidable manual SG 132 0.4662 0.98 0.5
--.DUI.Z. 1985-06-03T21:53:27.00 10.0 undecidable manual SG 96 0.3996 -1.41 0.3
--.MSC.Z. 1985-06-03T21:53:23.90 10.0 undecidable manual PG 175 0.5106 -0.37 1.8
--.SGG.Z. 1985-06-03T21:53:22.80 10.0 undecidable manual PG 132 0.4662 -0.56 1.7
--.DUI.Z. 1985-06-03T21:53:21.50 10.0 undecidable manual PG 96 0.3996 -0.64 1.6
--.SD1.Z. 1985-06-03T21:53:17.00 10.0 undecidable manual SG 271 0.0777 -1.32 0.5
--.SD1.Z. 1985-06-03T21:53:15.30 10.0 positive manual PG 271 0.0777 -1.02 2.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download