Earthquake with magnitude of Md 3.2 on date 23-08-1985 and time 19:44:46 (Italy) in region 2 km N Rocca d'Arce (FR)

A magnitude Md 3.2 earthquake occured in region: 2 km N Rocca d'Arce (FR), on

  • 23-08-1985 17:44:46 (UTC)
  • 23-08-1985 19:44:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.61, 13.59 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
Rocca d'Arce FR 2 959 959
Arce FR 2 5756 6715
Fontana Liri FR 3 2953 9668
Santopadre FR 4 1357 11025
Arpino FR 5 7262 18287
Colfelice FR 6 1932 20219
Monte San Giovanni Campano FR 7 12929 33148
Strangolagalli FR 8 2491 35639
Isola del Liri FR 8 11715 47354
Castelliri FR 9 3454 50808
Ceprano FR 9 8897 59705
Roccasecca FR 9 7365 67070
Fontechiari FR 10 1303 68373
Boville Ernica FR 11 8737 77110
Casalvieri FR 11 2698 79808
Colle San Magno FR 11 699 80507
Broccostella FR 11 2741 83248
Casalattico FR 12 574 83822
San Giovanni Incarico FR 12 3336 87158
Castrocielo FR 12 3965 91123
Vicalvi FR 13 783 91906
Falvaterra FR 13 554 92460
Sora FR 13 26144 118604
Posta Fibreno FR 13 1139 119743
Ripi FR 13 5270 125013
Pofi FR 15 4204 129217
Alvito FR 16 2713 131930
Torrice FR 16 4816 136746
Aquino FR 16 5370 142116
Campoli Appennino FR 16 1725 143841
Arnara FR 17 2309 146150
Pescosolido FR 17 1555 147705
Veroli FR 17 20560 168265
Terelle FR 17 422 168687
Pico FR 17 2888 171575
Pastena FR 17 1462 173037
Atina FR 18 4316 177353
Pontecorvo FR 18 13242 190595
Piedimonte San Germano FR 18 6535 197130
Gallinaro FR 19 1269 198399
Castro dei Volsci FR 19 4781 203180
Villa Santa Lucia FR 19 2632 205812
Belmonte Castello FR 19 739 206551
Frosinone FR 20 46323 252874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km E of Latina (125985 inhabitants)
68 Km E of Velletri (53303 inhabitants)
77 Km SE of Tivoli (56533 inhabitants)
78 Km E of Aprilia (73446 inhabitants)
82 Km E of Anzio (54211 inhabitants)
84 Km SE of Guidonia Montecelio (88673 inhabitants)
84 Km S of L'Aquila (69753 inhabitants)
86 Km NW of Caserta (76326 inhabitants)
87 Km NW of Aversa (53047 inhabitants)
91 Km E of Pomezia (62966 inhabitants)
91 Km NW of Giugliano in Campania (122974 inhabitants)
94 Km NW of Marano di Napoli (59874 inhabitants)
94 Km NW of Pozzuoli (81661 inhabitants)
96 Km SW of Chieti (51815 inhabitants)
97 Km E of Roma (2864731 inhabitants)
97 Km NW of Afragola (65057 inhabitants)
98 Km NW of Casoria (77642 inhabitants)
99 Km NW of Acerra (59573 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 3.2 1985-08-23
17:44:46
41.61 13.59 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 12289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-08-23 17:44:46 ± 0.39
Latitude 41.61 ± 0.03
Longitude 13.59 ± 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 12289

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) 4749.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.0017
Epicentral distance of station farthest from the epicenter (degree) 0.01748
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

Md:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 12289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:15:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AS1.Z. 1985-08-23T17:45:37.00 10.0 undecidable manual SN 335 0.0144 1.73 0.1
--.AR1.Z. 1985-08-23T17:45:21.00 10.0 undecidable manual PN 346 0.0175 1.68 0.3
--.AS1.Z. 1985-08-23T17:45:16.50 10.0 undecidable manual PN 335 0.0144 1.83 0.3
--.TR9.Z. 1985-08-23T17:45:12.20 10.0 positive manual PN 114 0.0121 1.04 1.6
--.RDP.Z. 1985-08-23T17:45:10.00 10.0 undecidable manual SG 283 0.006 0.14 0.6
--.SGG.Z. 1985-08-23T17:45:09.80 10.0 undecidable manual SG 110 0.0057 1.08 0.4
--.SOR.Z. 1985-08-23T17:45:07.70 10.0 undecidable manual PN 151 0.0105 -0.93 1
--.OVO.Z. 1985-08-23T17:45:06.30 10.0 positive manual PG 141 0.0089 0.32 2.8
--.DUI.Z. 1985-08-23T17:45:00.00 10.0 undecidable manual PG 85 0.0058 0.29 1.4
--.AQU.Z. 1985-08-23T17:45:00.00 10.0 undecidable manual PG 349 0.0068 -1.68 0.5
--.SGG.Z. 1985-08-23T17:44:59.00 10.0 undecidable manual PG 110 0.0057 -0.34 1.4
--.RDP.Z. 1985-08-23T17:44:58.50 10.0 undecidable manual PG 283 0.006 -1.49 0.6
--.MSC.Z. 1985-08-23T17:44:56.20 10.0 undecidable manual PG 145 0.0045 -0.8 1.2
--.SD1.Z. 1985-08-23T17:44:50.00 10.0 undecidable manual PG 58 0.0017 -1.23 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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