Earthquake with magnitude of Md 3.1 on date 24-03-1985 and time 08:27:57 (UTC) in region 7 km NE Settefrati (FR)

A magnitude Md 3.1 earthquake occured in region: 7 km NE Settefrati (FR), on

  • 24-03-1985 08:27:57 (UTC)
  • 24-03-1985 09:27:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7, 13.92 at 8 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
Settefrati FR 7 728 728
Civitella Alfedena AQ 7 296 1024
Picinisco FR 8 1218 2242
Villetta Barrea AQ 8 653 2895
Barrea AQ 9 726 3621
San Donato Val di Comino FR 9 2107 5728
San Biagio Saracinisco FR 10 349 6077
Alfedena AQ 10 864 6941
Pizzone IS 10 329 7270
Scontrone AQ 11 574 7844
Opi AQ 11 420 8264
Gallinaro FR 11 1269 9533
Villa Latina FR 12 1241 10774
Montenero Val Cocchiara IS 12 538 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
Vicalvi FR 18 783 27237
Acquafondata FR 18 263 27500
Castel di Sangro AQ 18 6538 34038
Rionero Sannitico IS 18 1118 35156
Casalattico FR 19 574 35730
Posta Fibreno FR 19 1139 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)
89 Km N of Giugliano in Campania (122974 inhabitants)
92 Km S of Montesilvano (53738 inhabitants)
92 Km N of Marano di Napoli (59874 inhabitants)
92 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)
96 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
Rev 1000 Md 3.1
ML-VAX 2.4
1985-03-24
08:27:57
41.7 13.92 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 3579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-24 08:27:57 ± 0.378
Latitude 41.70 ± 0.04
Longitude 13.92 ± 0.03
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3579

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) 5377.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.02161
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 3579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:20

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 3579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CH1.Z. 1985-03-24T08:28:38.50 10.0 undecidable manual PN 323 0.0216 1.3 0.5
--.PO9.Z. 1985-03-24T08:28:36.00 10.0 undecidable manual SN 320 0.0101 0.26 0.7
--.BS1.Z. 1985-03-24T08:28:34.50 10.0 undecidable manual SN 143 0.0103 -1.67 0.2
--.AR1.Z. 1985-03-24T08:28:31.00 10.0 undecidable manual PN 338 0.0173 0.33 1.2
--.RDP.Z. 1985-03-24T08:28:29.50 10.0 undecidable manual SG 273 0.0081 0.54 0.6
--.AS1.Z. 1985-03-24T08:28:27.00 10.0 undecidable manual PN 325 0.0148 0.22 1.4
--.SGO.Z. 1985-03-24T08:28:26.50 10.0 undecidable manual PN 137 0.0139 1.1 0.9
--.PO9.Z. 1985-03-24T08:28:21.70 10.0 undecidable manual PN 320 0.0101 2.01 0.3
--.BS1.Z. 1985-03-24T08:28:20.50 10.0 undecidable manual PN 143 0.0103 0.56 1.5
--.MNS.Z. 1985-03-24T08:28:18.50 10.0 undecidable manual PN 306 0.0103 -1.36 0.8
--.RDP.Z. 1985-03-24T08:28:14.00 10.0 undecidable manual PG 273 0.0081 -1.78 0.6
--.DUI.Z. 1985-03-24T08:28:12.00 10.0 undecidable manual SG 96 0.0036 -1.02 0.4
--.AQU.Z. 1985-03-24T08:28:11.30 10.0 undecidable manual PG 329 0.0067 -1.79 0.5
--.DUI.Z. 1985-03-24T08:28:06.20 10.0 undecidable manual PG 96 0.0036 -0.38 1.7
--.SD1.Z. 1985-03-24T08:28:02.00 10.0 undecidable manual SG 273 0.0007 0.02 1.1
--.SD1.Z. 1985-03-24T08:28:00.30 10.0 negative manual PG 273 0.0007 0.1 3.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download