Earthquake with magnitude of Md 2.4 on date 02-05-1985 and time 11:05:30 (Italy) in region 2 km E Arpino (FR)

A magnitude Md 2.4 earthquake occured in region: 2 km E Arpino (FR), on

  • 02-05-1985 09:05:30 (UTC)
  • 02-05-1985 11:05:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.66, 13.63 at 0 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
Arpino FR 2 7262 7262
Fontechiari FR 4 1303 8565
Isola del Liri FR 5 11715 20280
Broccostella FR 5 2741 23021
Santopadre FR 6 1357 24378
Vicalvi FR 7 783 25161
Castelliri FR 7 3454 28615
Posta Fibreno FR 7 1139 29754
Sora FR 7 26144 55898
Casalvieri FR 8 2698 58596
Fontana Liri FR 8 2953 61549
Rocca d'Arce FR 8 959 62508
Arce FR 9 5756 68264
Casalattico FR 9 574 68838
Monte San Giovanni Campano FR 10 12929 81767
Campoli Appennino FR 10 1725 83492
Alvito FR 10 2713 86205
Pescosolido FR 11 1555 87760
Colfelice FR 11 1932 89692
Roccasecca FR 12 7365 97057
Strangolagalli FR 13 2491 99548
Colle San Magno FR 13 699 100247
Boville Ernica FR 13 8737 108984
Gallinaro FR 14 1269 110253
Atina FR 15 4316 114569
Castrocielo FR 15 3965 118534
Ceprano FR 15 8897 127431
San Donato Val di Comino FR 17 2107 129538
Terelle FR 17 422 129960
Ripi FR 17 5270 135230
Balsorano AQ 17 3569 138799
Belmonte Castello FR 18 739 139538
Veroli FR 18 20560 160098
San Giovanni Incarico FR 18 3336 163434
Villa Latina FR 18 1241 164675
Settefrati FR 19 728 165403
Falvaterra FR 19 554 165957
Aquino FR 19 5370 171327
Torrice FR 19 4816 176143
Picinisco FR 20 1218 177361

Municipalities with at least 50000 inhabitants

An earthquake occurred to
64 Km E of Latina (125985 inhabitants)
71 Km E of Velletri (53303 inhabitants)
77 Km E of Tivoli (56533 inhabitants)
80 Km S of L'Aquila (69753 inhabitants)
82 Km E of Aprilia (73446 inhabitants)
84 Km E of Guidonia Montecelio (88673 inhabitants)
86 Km E of Anzio (54211 inhabitants)
87 Km NW of Caserta (76326 inhabitants)
89 Km SW of Chieti (51815 inhabitants)
90 Km NW of Aversa (53047 inhabitants)
94 Km E of Pomezia (62966 inhabitants)
94 Km NW of Giugliano in Campania (122974 inhabitants)
96 Km NW of Marano di Napoli (59874 inhabitants)
98 Km NW of Pozzuoli (81661 inhabitants)
99 Km E of Roma (2864731 inhabitants)
99 Km NW of Afragola (65057 inhabitants)
100 Km NW of Casoria (77642 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 2.4 1985-05-02
09:05:30
41.66 13.63 0 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 5749
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-02 09:05:30 ± 1.804
Latitude 41.66 ± 0.06
Longitude 13.63 ± 0.07
Depth (km) 0 ± 13 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 5749

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) 8850.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.00907
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 5749
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:10:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1985-05-02T09:05:50.00 10.0 undecidable manual PG 316 0.0091 -1.27 0.5
--.AQU.Z. 1985-05-02T09:05:47.00 10.0 undecidable manual PG 346 0.0064 1.21 0.7
--.SGG.Z. 1985-05-02T09:05:44.30 10.0 undecidable manual PG 115 0.0056 0.28 1.4
--.SD1.Z. 1985-05-02T09:05:35.50 10.0 undecidable manual SG 68 0.0013 -0.39 0.7
--.SD1.Z. 1985-05-02T09:05:33.50 10.0 undecidable manual PG 68 0.0013 -0.03 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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