Earthquake with magnitude of Md 2.9 on date 21-03-1985 and time 18:17:45 (Italy) in region 2 km NW Villa Latina (FR)

A magnitude Md 2.9 earthquake occured in region: 2 km NW Villa Latina (FR), on

  • 21-03-1985 17:17:45 (UTC)
  • 21-03-1985 18:17:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.63, 13.83 at 7 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
Villa Latina FR 2 1241 1241
Atina FR 3 4316 5557
Picinisco FR 4 1218 6775
Gallinaro FR 4 1269 8044
Settefrati FR 5 728 8772
Belmonte Castello FR 6 739 9511
San Donato Val di Comino FR 9 2107 11618
San Biagio Saracinisco FR 9 349 11967
Casalattico FR 9 574 12541
Alvito FR 9 2713 15254
Terelle FR 10 422 15676
Casalvieri FR 10 2698 18374
Sant'Elia Fiumerapido FR 11 6166 24540
Vicalvi FR 11 783 25323
Vallerotonda FR 11 1581 26904
Posta Fibreno FR 13 1139 28043
Fontechiari FR 13 1303 29346
Acquafondata FR 14 263 29609
Colle San Magno FR 14 699 30308
Villa Santa Lucia FR 15 2632 32940
Cassino FR 16 36142 69082
Castrocielo FR 16 3965 73047
Roccasecca FR 16 7365 80412
Piedimonte San Germano FR 16 6535 86947
Opi AQ 16 420 87367
Santopadre FR 16 1357 88724
Viticuso FR 17 353 89077
Campoli Appennino FR 17 1725 90802
Civitella Alfedena AQ 18 296 91098
Pizzone IS 18 329 91427
Broccostella FR 18 2741 94168
Cervaro FR 18 8109 102277
Villetta Barrea AQ 18 653 102930
Arpino FR 18 7262 110192
Aquino FR 19 5370 115562
Scapoli IS 19 680 116242
Pescosolido FR 19 1555 117797
Barrea AQ 20 726 118523
Castel San Vincenzo IS 20 516 119039
Pescasseroli AQ 20 2203 121242

Municipalities with at least 50000 inhabitants

An earthquake occurred to
75 Km NW of Caserta (76326 inhabitants)
79 Km E of Latina (125985 inhabitants)
80 Km NW of Aversa (53047 inhabitants)
84 Km NW of Giugliano in Campania (122974 inhabitants)
85 Km SW of Chieti (51815 inhabitants)
87 Km NW of Marano di Napoli (59874 inhabitants)
88 Km SE of L'Aquila (69753 inhabitants)
88 Km E of Velletri (53303 inhabitants)
89 Km NW of Afragola (65057 inhabitants)
89 Km NW of Acerra (59573 inhabitants)
90 Km NW of Casoria (77642 inhabitants)
90 Km N of Pozzuoli (81661 inhabitants)
93 Km E of Tivoli (56533 inhabitants)
95 Km NW of Napoli (974074 inhabitants)
97 Km NW of Benevento (60091 inhabitants)
98 Km SW of Pescara (121014 inhabitants)
98 Km E of Aprilia (73446 inhabitants)
100 Km NW of Portici (55274 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 2.9 1985-03-21
17:17:45
41.63 13.83 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 3459
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-21 17:17:45 ± 0.374
Latitude 41.63 ± 0.03
Longitude 13.83 ± 0.03
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3459

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) 3961
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.01773
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 3459
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
--.AR1.Z. 1985-03-21T17:18:20.00 10.0 undecidable manual PN 340 0.0177 0.83 0.5
--.AQU.Z. 1985-03-21T17:18:14.00 10.0 undecidable manual SG 336 0.007 0.7 0.4
--.SGO.Z. 1985-03-21T17:18:14.80 10.0 undecidable manual PN 133 0.0138 1.53 0.1
--.MNS.Z. 1985-03-21T17:18:07.50 10.0 undecidable manual PN 311 0.0102 -0.15 1.2
--.RDP.Z. 1985-03-21T17:18:03.00 10.0 undecidable manual PG 278 0.0075 0.48 1.2
--.DUI.Z. 1985-03-21T17:18:03.00 10.0 undecidable manual SG 86 0.0042 -0.11 0.6
--.SGG.Z. 1985-03-21T17:18:03.30 10.0 undecidable manual SG 120 0.0043 -0.09 0.6
--.AQU.Z. 1985-03-21T17:18:01.00 10.0 undecidable manual PG 336 0.007 -0.56 1.1
--.RMP.Z. 1985-03-21T17:18:01.50 10.0 undecidable manual PG 282 0.0077 -1.39 0.3
--.SGG.Z. 1985-03-21T17:17:55.70 10.0 negative manual PG 120 0.0043 -0.14 2.9
--.DUI.Z. 1985-03-21T17:17:54.50 10.0 undecidable manual PG 86 0.0042 -1.18 0.5
--.SD1.Z. 1985-03-21T17:17:48.00 10.0 negative manual PG 349 0.0006 0.25 2.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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