Earthquake with magnitude of Md 2.4 on date 06-01-1985 and time 14:38:40 (UTC) in region 2 km E Opi (AQ)

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

  • 06-01-1985 14:38:40 (UTC)
  • 06-01-1985 15:38:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.78, 13.86 at 16 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
Opi AQ 2 420 420
Villetta Barrea AQ 6 653 1073
Pescasseroli AQ 6 2203 3276
Civitella Alfedena AQ 7 296 3572
San Donato Val di Comino FR 9 2107 5679
Barrea AQ 12 726 6405
Settefrati FR 12 728 7133
Scanno AQ 14 1847 8980
Alvito FR 14 2713 11693
Gallinaro FR 14 1269 12962
Picinisco FR 15 1218 14180
Campoli Appennino FR 15 1725 15905
Alfedena AQ 16 864 16769
Scontrone AQ 16 574 17343
Posta Fibreno FR 16 1139 18482
Pescosolido FR 17 1555 20037
Vicalvi FR 17 783 20820
Villalago AQ 17 568 21388
Bisegna AQ 18 223 21611
Atina FR 18 4316 25927
Villa Latina FR 19 1241 27168
Montenero Val Cocchiara IS 19 538 27706
Fontechiari FR 19 1303 29009
San Biagio Saracinisco FR 19 349 29358
Pizzone IS 20 329 29687
Roccaraso AQ 20 1627 31314
Rocca Pia AQ 20 178 31492

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km SW of Chieti (51815 inhabitants)
74 Km SE of L'Aquila (69753 inhabitants)
82 Km SW of Pescara (121014 inhabitants)
85 Km S of Montesilvano (53738 inhabitants)
86 Km E of Latina (125985 inhabitants)
88 Km NW of Caserta (76326 inhabitants)
90 Km E of Tivoli (56533 inhabitants)
90 Km E of Velletri (53303 inhabitants)
94 Km NW of Aversa (53047 inhabitants)
97 Km E of Guidonia Montecelio (88673 inhabitants)
99 Km S of Teramo (54892 inhabitants)
99 Km N of Giugliano in Campania (122974 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 1985-01-06
14:38:40
41.78 13.86 15 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-01-06 14:38:40 ± 0.514
Latitude 41.78 ± 0.03
Longitude 13.86 ± 0.03
Depth (km) 15 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 119

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) 4209.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 259
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.00534
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 1
Type of magnitude Md
Reference to an origin 119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:05:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SGG.Z. 1985-01-06T14:39:00.70 10.0 undecidable manual SG 135 0.0049 0.32 0.2
--.MSC.Z. 1985-01-06T14:38:52.80 10.0 undecidable manual PG 171 0.0053 0.03 1.2
--.SGG.Z. 1985-01-06T14:38:51.40 10.0 undecidable manual PG 135 0.0049 -0.61 0.3
--.DUI.Z. 1985-01-06T14:38:50.50 10.0 undecidable manual PG? 105 0.0041 0.15 0.4
--.SD1.Z. 1985-01-06T14:38:46.20 10.0 undecidable manual SG 205 0.0006 -0.19 0.8
--.SD1.Z. 1985-01-06T14:38:44.00 10.0 positive manual PG 205 0.0006 0.07 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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