Earthquake with magnitude of Md 2.4 on date 22-05-1997 and time 20:51:08 (Italy) in region 6 km NE Antrodoco (RI)

A magnitude Md 2.4 earthquake occured in region: 6 km NE Antrodoco (RI), on

  • 22-05-1997 18:51:08 (UTC)
  • 22-05-1997 20:51:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4470, 13.1380 at 5 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
Antrodoco RI 6 2588 2588
Micigliano RI 7 127 2715
Cagnano Amiterno AQ 7 1369 4084
Borbona RI 7 617 4701
Borgo Velino RI 8 972 5673
Posta RI 9 694 6367
Castel Sant'Angelo RI 11 1308 7675
Barete AQ 12 737 8412
Montereale AQ 12 2581 10993
Scoppito AQ 13 3727 14720
Pizzoli AQ 13 4326 19046
Capitignano AQ 16 665 19711
Cittaducale RI 17 6828 26539
Petrella Salto RI 18 1197 27736
Concerviano RI 18 291 28027
Leonessa RI 19 2435 30462
Cittareale RI 19 482 30944
Cantalice RI 19 2755 33699

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of L'Aquila (69753 inhabitants)
42 Km E of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
60 Km NE of Guidonia Montecelio (88673 inhabitants)
61 Km NE of Tivoli (56533 inhabitants)
67 Km SE of Foligno (57155 inhabitants)
82 Km NE of Roma (2864731 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
85 Km E of Viterbo (67173 inhabitants)
85 Km W of Chieti (51815 inhabitants)
88 Km W of Pescara (121014 inhabitants)
90 Km NE of Velletri (53303 inhabitants)
96 Km SE of Perugia (166134 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
Bulletin
Rev1000
Md 2.4 1997-05-22
18:51:08
42.447 13.138 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 269369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-05-22 18:51:08 ± 0.207
Latitude 42.4470 ± 0.0147
Longitude 13.1380 ± 0.0160
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 269369

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) 2096.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
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) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.00947
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 269369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:14:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1997-05-22T18:51:46.14 10.0 undecidable manual SG 352 1.0545 0.49 0.3
--.SDI.Z. 1997-05-22T18:51:41.12 10.0 undecidable manual SG 145 0.888 0.91 0.1
--.ASS.Z. 1997-05-22T18:51:33.94 10.0 undecidable manual SG 330 0.6993 -0.48 0.4
--.ARV.Z. 1997-05-22T18:51:30.24 10.0 undecidable manual PG 352 1.0545 0.2 1.1
--.SDI.Z. 1997-05-22T18:51:27.90 10.0 undecidable manual PG 145 0.888 0.2 1.3
--.PQ9.Z. 1997-05-22T18:51:25.63 10.0 undecidable manual SG 155 0.4551 -0.98 0.1
--.ASS.Z. 1997-05-22T18:51:23.90 10.0 undecidable manual PG 330 0.6993 -0.46 0.9
--.MNS.Z. 1997-05-22T18:51:20.92 10.0 undecidable manual SG 259 0.3441 -1.11 0
--.PQ9.Z. 1997-05-22T18:51:19.10 10.0 undecidable manual PG 155 0.4551 -0.05 1.7
--.AQU.Z. 1997-05-22T18:51:16.92 10.0 undecidable manual SG 115 0.2109 -0.3 0.6
--.MNS.Z. 1997-05-22T18:51:16.83 10.0 positive manual PG 259 0.3441 0.42 2.2
--.AQU.Z. 1997-05-22T18:51:13.53 10.0 positive manual PG 115 0.2109 -0.09 3.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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