Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 08-05-2013 and time 18:23:21 (Italy) in region 3 km W Roccaraso (AQ)

A magnitude ML 1.3 earthquake occured in region: 3 km W Roccaraso (AQ), on

  • 08-05-2013 16:23:21 (UTC)
  • 08-05-2013 18:23:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8350, 14.0430 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Roccaraso AQ 3 1627 1627
Rivisondoli AQ 5 700 2327
Pescocostanzo AQ 7 1128 3455
Castel di Sangro AQ 8 6538 9993
Barrea AQ 10 726 10719
Scontrone AQ 10 574 11293
Alfedena AQ 11 864 12157
Civitella Alfedena AQ 11 296 12453
Villetta Barrea AQ 11 653 13106
Rocca Pia AQ 13 178 13284
San Pietro Avellana IS 13 503 13787
Ateleta AQ 13 1181 14968
Montenero Val Cocchiara IS 13 538 15506
Scanno AQ 15 1847 17353
Rionero Sannitico IS 16 1118 18471
Gamberale CH 16 320 18791
Castel del Giudice IS 16 346 19137
Pettorano sul Gizio AQ 17 1376 20513
Palena CH 18 1392 21905
Capracotta IS 18 903 22808
Sant'Angelo del Pesco IS 19 364 23172
Opi AQ 19 420 23592
Pizzone IS 19 329 23921
Pizzoferrato CH 19 1130 25051
Cansano AQ 19 274 25325
Forlì del Sannio IS 19 675 26000
Vastogirardi IS 19 704 26704
Campo di Giove AQ 20 803 27507
Castel San Vincenzo IS 20 516 28023
Acquaviva d'Isernia IS 20 425 28448

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km S of Chieti (51815 inhabitants)
72 Km S of Pescara (121014 inhabitants)
76 Km S of Montesilvano (53738 inhabitants)
78 Km SE of L'Aquila (69753 inhabitants)
88 Km N of Caserta (76326 inhabitants)
96 Km S of Teramo (54892 inhabitants)
97 Km N of Aversa (53047 inhabitants)
100 Km NW of Benevento (60091 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 		ML 1.3 2013-05-08
16:23:21		 41.8348 14.0433 10 2015-01-20
11:25:45		 Bollettino Sismico Italiano INGV 3940151
Reviewed
Rev100 		ML 1.3 2013-05-08
16:23:20		 41.824 14.0447 10 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3450681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-05-08 16:23:21 ± 0.14
Latitude 41.8348 ± 0.0063
Longitude 14.0433 ± 0.0109
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3940151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 879
Semi-minor axis of confidence ellipse (meter) 385
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.15468
Epicentral distance of station farthest from the epicenter (degree) 0.31476
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.5
Num. used stations 7
Type of magnitude ML
Reference to an origin 3450681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-05-08 16:31:23

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 3940151
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 12:56:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HHZ. 2013-05-08T16:23:32.25 0.1 undecidable manual S 245 30.3474 50 0.38 94
IV.LPEL.HHZ. 2013-05-08T16:23:31.07 0.1 undecidable manual S 26 26.1516 50 0.31 97
IV.MIDA.HHZ. 2013-05-08T16:23:31.68 0.3 undecidable manual S 141 27.5502 50 0.55 68
IV.CERA.HHZ. 2013-05-08T16:23:31.01 0.1 undecidable manual S 185 26.3514 50 0.21 99
IV.INTR.HHZ. 2013-05-08T16:23:30.14 0.3 undecidable manual S 330 22.6551 114 0.41 71
IV.RNI2.HHZ. 2013-05-08T16:23:28.10 0.3 undecidable manual S 148 17.1717 121 0.09 77
IV.POFI.HHZ. 2013-05-08T16:23:27.09 0.1 undecidable manual P 245 30.3474 50 -0.23 98
IV.VVLD.HHZ. 2013-05-08T16:23:27.89 0.1 undecidable manual P 276 34.9428 50 -0.13 99
IV.CERA.HHZ. 2013-05-08T16:23:26.10 0.1 undecidable manual P 185 26.3514 50 -0.6 89
IV.LPEL.HHZ. 2013-05-08T16:23:26.32 0.1 undecidable manual P 26 26.1516 50 -0.36 96
IV.MIDA.HHZ. 2013-05-08T16:23:26.43 0.1 undecidable manual P 141 27.5502 50 -0.46 93
IV.INTR.HHZ. 2013-05-08T16:23:25.91 0.1 undecidable manual P 330 22.6551 114 -0.17 100
IV.RNI2.HHZ. 2013-05-08T16:23:25.33 0.1 undecidable manual P 148 17.1717 121 0.23 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHN. ML:1.1 0.0000691 0.98 AML other m 2013-05-08T16:23:39.74
IV.CERA.HHE. ML:1.2 0.0000798 0.7 AML other m 2013-05-08T16:23:39.36
IV.INTR.HHE. ML:1.4 0.000164 0.6 AML other m 2013-05-08T16:23:32.97
IV.INTR.HHN. ML:1.7 0.00029949999999999996 0.8 AML other m 2013-05-08T16:23:35.27
IV.LPEL.HHE. ML:1.1 0.00006675000000000001 0.76 AML other m 2013-05-08T16:23:34.84
IV.LPEL.HHN. ML:1.0 0.00004955 1.22 AML other m 2013-05-08T16:23:34.47
IV.MIDA.HHE. ML:1.3 0.00009485 1.2 AML other m 2013-05-08T16:23:35.35
IV.MIDA.HHN. ML:1.3 0.00009490000000000002 1.58 AML other m 2013-05-08T16:23:40.94
IV.POFI.HHN. ML:0.9 0.0000365 1.12 AML other m 2013-05-08T16:23:40.27
IV.POFI.HHE. ML:0.9 0.000039649999999999995 0.68 AML other m 2013-05-08T16:23:36.29
IV.RNI2.HNN. ML:1.6 0.000329 0.42 AML other m 2013-05-08T16:23:33.75
IV.RNI2.HHN. ML:1.6 0.00033650000000000005 0.4 AML other m 2013-05-08T16:23:32.63
IV.RNI2.HHE. ML:1.8 0.000496 0.64 AML other m 2013-05-08T16:23:32.88
IV.RNI2.HNE. ML:1.7 0.00046399999999999995 0.62 AML other m 2013-05-08T16:23:32.89
IV.VVLD.HHE. ML:1.2 0.000059499999999999996 1.12 AML other m 2013-05-08T16:23:36.62
IV.VVLD.HHN. ML:1.2 0.00006075 0.54 AML other m 2013-05-08T16:23:35.95
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download