Earthquake with magnitude of Md 2.7 on date 21-03-1985 and time 18:44:24 (Italy) in region 3 km E Settefrati (FR)

A magnitude Md 2.7 earthquake occured in region: 3 km E Settefrati (FR), on

  • 21-03-1985 17:44:24 (UTC)
  • 21-03-1985 18:44:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.68, 13.88 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
Settefrati FR 3 728 728
Picinisco FR 4 1218 1946
San Donato Val di Comino FR 7 2107 4053
Gallinaro FR 7 1269 5322
Villa Latina FR 8 1241 6563
San Biagio Saracinisco FR 8 349 6912
Atina FR 10 4316 11228
Civitella Alfedena AQ 11 296 11524
Villetta Barrea AQ 11 653 12177
Alvito FR 12 2713 14890
Opi AQ 12 420 15310
Barrea AQ 13 726 16036
Belmonte Castello FR 13 739 16775
Pizzone IS 13 329 17104
Alfedena AQ 14 864 17968
Vallerotonda FR 14 1581 19549
Casalattico FR 15 574 20123
Vicalvi FR 15 783 20906
Scontrone AQ 15 574 21480
Casalvieri FR 15 2698 24178
Castel San Vincenzo IS 15 516 24694
Posta Fibreno FR 16 1139 25833
Sant'Elia Fiumerapido FR 16 6166 31999
Montenero Val Cocchiara IS 16 538 32537
Acquafondata FR 16 263 32800
Scapoli IS 16 680 33480
Pescasseroli AQ 16 2203 35683
Terelle FR 17 422 36105
Fontechiari FR 17 1303 37408
Rocchetta a Volturno IS 18 1113 38521
Campoli Appennino FR 18 1725 40246
Cerro al Volturno IS 19 1281 41527
Viticuso FR 19 353 41880

Municipalities with at least 50000 inhabitants

An earthquake occurred to
77 Km NW of Caserta (76326 inhabitants)
78 Km SW of Chieti (51815 inhabitants)
83 Km NW of Aversa (53047 inhabitants)
85 Km SE of L'Aquila (69753 inhabitants)
85 Km E of Latina (125985 inhabitants)
88 Km NW of Giugliano in Campania (122974 inhabitants)
91 Km N of Marano di Napoli (59874 inhabitants)
91 Km NW of Acerra (59573 inhabitants)
91 Km SW of Pescara (121014 inhabitants)
92 Km NW of Afragola (65057 inhabitants)
92 Km E of Velletri (53303 inhabitants)
93 Km NW of Casoria (77642 inhabitants)
94 Km N of Pozzuoli (81661 inhabitants)
95 Km E of Tivoli (56533 inhabitants)
95 Km S of Montesilvano (53738 inhabitants)
97 Km NW of Benevento (60091 inhabitants)
98 Km NW 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 2.7 1985-03-21
17:44:24
41.68 13.88 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 3469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-21 17:44:24 ± 0.255
Latitude 41.68 ± 0.06
Longitude 13.88 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3469

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) 7937.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.0102
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 3469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1985-03-21T17:44:47.00 10.0 undecidable manual PN? 308 0.0102 1.05 0
--.SGG.Z. 1985-03-21T17:44:34.40 10.0 undecidable manual PG 128 0.0042 0.25 1.1
--.DUI.Z. 1985-03-21T17:44:33.00 10.0 undecidable manual PG 92 0.0038 -0.34 0.9
--.SD1.Z. 1985-03-21T17:44:28.00 10.0 undecidable manual SG 296 0.0005 -0.49 0.4
--.SD1.Z. 1985-03-21T17:44:26.60 10.0 negative manual PG 296 0.0005 -0.11 2.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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