Earthquake with magnitude of Md 2.9 on date 23-01-1985 and time 10:59:21 (Italy) in region 3 km W Montaquila (IS)

A magnitude Md 2.9 earthquake occured in region: 3 km W Montaquila (IS), on

  • 23-01-1985 09:59:21 (UTC)
  • 23-01-1985 10:59:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.57, 14.08 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
Montaquila IS 3 2456 2456
Filignano IS 3 648 3104
Colli a Volturno IS 4 1349 4453
Scapoli IS 5 680 5133
Rocchetta a Volturno IS 6 1113 6246
Fornelli IS 7 1909 8155
Pozzilli IS 7 2380 10535
Macchia d'Isernia IS 7 1035 11570
Monteroduni IS 10 2264 13834
Cerro al Volturno IS 10 1281 15115
Castel San Vincenzo IS 10 516 15631
Venafro IS 10 11280 26911
Conca Casale IS 10 200 27111
Viticuso FR 11 353 27464
Acquafondata FR 11 263 27727
Pizzone IS 11 329 28056
Sant'Agapito IS 12 1496 29552
Isernia IS 12 21842 51394
Capriati a Volturno CE 13 1541 52935
Acquaviva d'Isernia IS 13 425 53360
San Biagio Saracinisco FR 14 349 53709
Vallerotonda FR 14 1581 55290
Ciorlano CE 15 426 55716
Longano IS 15 690 56406
Fontegreca CE 15 811 57217
Miranda IS 16 1047 58264
Montenero Val Cocchiara IS 16 538 58802
Forlì del Sannio IS 16 675 59477
Pettoranello del Molise IS 16 460 59937
Sesto Campano IS 17 2388 62325
Rionero Sannitico IS 17 1118 63443
San Vittore del Lazio FR 17 2636 66079
Gallo Matese CE 17 579 66658
San Pietro Infine CE 17 944 67602
Pesche IS 17 1661 69263
Cervaro FR 18 8109 77372
Sant'Elia Fiumerapido FR 18 6166 83538
Prata Sannita CE 18 1502 85040
Castelpizzuto IS 19 155 85195
Alfedena AQ 19 864 86059
Roccasicura IS 19 550 86609
Letino CE 19 712 87321
Picinisco FR 20 1218 88539
Mignano Monte Lungo CE 20 3250 91789
Scontrone AQ 20 574 92363
Pratella CE 20 1565 93928

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km NW of Caserta (76326 inhabitants)
67 Km N of Aversa (53047 inhabitants)
72 Km N of Giugliano in Campania (122974 inhabitants)
74 Km NW of Acerra (59573 inhabitants)
75 Km N of Afragola (65057 inhabitants)
75 Km N of Marano di Napoli (59874 inhabitants)
76 Km N of Casoria (77642 inhabitants)
76 Km NW of Benevento (60091 inhabitants)
80 Km N of Pozzuoli (81661 inhabitants)
83 Km N of Napoli (974074 inhabitants)
86 Km N of Portici (55274 inhabitants)
87 Km S of Chieti (51815 inhabitants)
88 Km N of Ercolano (53709 inhabitants)
90 Km N of Torre del Greco (86275 inhabitants)
94 Km NW of Avellino (54857 inhabitants)
99 Km E of Latina (125985 inhabitants)
99 Km NW of Scafati (50787 inhabitants)
100 Km S of Pescara (121014 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 1985-01-23
09:59:21
41.57 14.08 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 749
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-01-23 09:59:21 ± 1.095
Latitude 41.57 ± 0.06
Longitude 14.08 ± 0.08
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 749

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) 9332
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 313
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.01182
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 749
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:05:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.RDP.Z. 1985-01-23T09:59:57.50 10.0 undecidable manual SN 280 0.0093 1.01 0.3
--.RMP.N. 1985-01-23T09:59:57.00 10.0 undecidable manual SN 283 0.0095 0.01 0.6
--.MNS.Z. 1985-01-23T09:59:46.00 10.0 undecidable manual PN 308 0.0118 0.44 1.1
--.RMP.Z. 1985-01-23T09:59:42.00 10.0 undecidable manual PN 283 0.0095 0.06 1.5
--.RDP.Z. 1985-01-23T09:59:41.40 10.0 undecidable manual PN 280 0.0093 -0.25 1.4
--.AQU.Z. 1985-01-23T09:59:40.50 10.0 undecidable manual PG 327 0.0083 0.76 0.8
--.SD1.Z. 1985-01-23T09:59:26.20 10.0 negative manual PG 304 0.0022 -0.82 1.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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