Earthquake with magnitude of Md 2.4 on date 24-02-1985 and time 11:42:30 (Italy) in region 2 km NW Barrea (AQ)

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

  • 24-02-1985 10:42:30 (UTC)
  • 24-02-1985 11:42:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.77, 13.98 at 6 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
Barrea AQ 2 726 726
Civitella Alfedena AQ 4 296 1022
Villetta Barrea AQ 5 653 1675
Scontrone AQ 6 574 2249
Alfedena AQ 6 864 3113
Montenero Val Cocchiara IS 9 538 3651
Castel di Sangro AQ 11 6538 10189
Roccaraso AQ 12 1627 11816
Pizzone IS 13 329 12145
Opi AQ 13 420 12565
Rivisondoli AQ 13 700 13265
Castel San Vincenzo IS 15 516 13781
Rionero Sannitico IS 15 1118 14899
Pescocostanzo AQ 15 1128 16027
Settefrati FR 16 728 16755
San Donato Val di Comino FR 16 2107 18862
Cerro al Volturno IS 17 1281 20143
Pescasseroli AQ 17 2203 22346
Scanno AQ 17 1847 24193
San Pietro Avellana IS 17 503 24696
Picinisco FR 17 1218 25914
Acquaviva d'Isernia IS 18 425 26339
Rocca Pia AQ 18 178 26517
San Biagio Saracinisco FR 18 349 26866
Rocchetta a Volturno IS 19 1113 27979
Forlì del Sannio IS 19 675 28654
Scapoli IS 19 680 29334
Gallinaro FR 20 1269 30603

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km S of Chieti (51815 inhabitants)
79 Km S of Pescara (121014 inhabitants)
80 Km SE of L'Aquila (69753 inhabitants)
83 Km NW of Caserta (76326 inhabitants)
84 Km S of Montesilvano (53738 inhabitants)
91 Km N of Aversa (53047 inhabitants)
96 Km N of Giugliano in Campania (122974 inhabitants)
96 Km E of Latina (125985 inhabitants)
97 Km NW of Acerra (59573 inhabitants)
98 Km NW of Benevento (60091 inhabitants)
98 Km N of Afragola (65057 inhabitants)
99 Km N of Marano di Napoli (59874 inhabitants)
100 Km N 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 1985-02-24
10:42:30
41.77 13.98 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-24 10:42:30 ± 0.233
Latitude 41.77 ± 0.02
Longitude 13.98 ± 0.01
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2379

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) 2754
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.01692
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 2379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.RDP.Z. 1985-02-24T10:43:03.50 10.0 undecidable manual SG 269 0.0084 0.27 0.5
--.AR1.Z. 1985-02-24T10:43:02.50 10.0 undecidable manual PN? 336 0.0169 -0.32 0.3
--.AS1.Z. 1985-02-24T10:43:00.50 10.0 undecidable manual PN? 323 0.0146 1.33 0
--.MNS.Z. 1985-02-24T10:42:52.50 10.0 undecidable manual PN 302 0.0103 -0.12 1.4
--.PO9.Z. 1985-02-24T10:42:52.50 10.0 undecidable manual PN 316 0.01 0.31 1.1
--.RDP.Z. 1985-02-24T10:42:49.30 10.0 undecidable manual PG 269 0.0084 0 1.6
--.DUI.Z. 1985-02-24T10:42:44.50 10.0 undecidable manual SG 107 0.0033 -0.27 0.6
--.AQU.Z. 1985-02-24T10:42:44.50 10.0 undecidable manual PG 323 0.0065 -0.7 0.4
--.SGG.Z. 1985-02-24T10:42:40.50 10.0 undecidable manual PG 142 0.0044 -0.32 1.3
--.DUI.Z. 1985-02-24T10:42:39.00 10.0 undecidable manual PG 107 0.0033 0.36 1.2
--.SD1.Z. 1985-02-24T10:42:35.80 10.0 undecidable manual SG 243 0.0013 -0.4 0.4
--.SD1.Z. 1985-02-24T10:42:33.80 10.0 undecidable manual PG 243 0.0013 0.11 3.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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