Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 28-09-2013 and time 06:40:44 (Italy) in region 2 km E Balsorano (AQ)

A magnitude ML 1.3 earthquake occured in region: 2 km E Balsorano (AQ), on

  • 28-09-2013 04:40:44 (UTC)
  • 28-09-2013 06:40:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8050, 13.5830 at 18 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
Balsorano AQ 2 3569 3569
San Vincenzo Valle Roveto AQ 6 2347 5916
Villavallelonga AQ 8 919 6835
Pescosolido FR 9 1555 8390
Collelongo AQ 9 1233 9623
Sora FR 10 26144 35767
Campoli Appennino FR 11 1725 37492
Broccostella FR 12 2741 40233
Morino AQ 12 1448 41681
Civita d'Antino AQ 13 979 42660
Isola del Liri FR 14 11715 54375
Castelliri FR 14 3454 57829
Posta Fibreno FR 16 1139 58968
Lecce nei Marsi AQ 17 1702 60670
Fontechiari FR 17 1303 61973
Pescasseroli AQ 17 2203 64176
Vicalvi FR 18 783 64959
Arpino FR 18 7262 72221
Ortucchio AQ 18 1860 74081
Trasacco AQ 18 6246 80327
Civitella Roveto AQ 18 3268 83595
Collepardo FR 18 968 84563
Alvito FR 19 2713 87276
Veroli FR 19 20560 107836
Gioia dei Marsi AQ 19 1989 109825
Monte San Giovanni Campano FR 19 12929 122754
Bisegna AQ 20 223 122977
Luco dei Marsi AQ 20 6079 129056

Municipalities with at least 50000 inhabitants

An earthquake occurred to
63 Km S of L'Aquila (69753 inhabitants)
67 Km E of Tivoli (56533 inhabitants)
68 Km NE of Latina (125985 inhabitants)
68 Km E of Velletri (53303 inhabitants)
74 Km E of Guidonia Montecelio (88673 inhabitants)
78 Km SW of Chieti (51815 inhabitants)
81 Km E of Aprilia (73446 inhabitants)
89 Km E of Anzio (54211 inhabitants)
90 Km SW of Pescara (121014 inhabitants)
91 Km E of Pomezia (62966 inhabitants)
92 Km E of Roma (2864731 inhabitants)
92 Km SW of Montesilvano (53738 inhabitants)
96 Km S of Teramo (54892 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 2013-09-28
04:40:44		 41.8052 13.5832 18 2015-01-20
11:29:04		 Bollettino Sismico Italiano INGV 4884641
Reviewed
Rev100 		ML 1.3 2013-09-28
04:40:44		 41.8057 13.58 17 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 4570861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-09-28 04:40:44 ± 0.09
Latitude 41.8052 ± 0.0045
Longitude 13.5832 ± 0.0048
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4884641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 476
Semi-minor axis of confidence ellipse (meter) 339
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 208
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
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) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.13040
Epicentral distance of station farthest from the epicenter (degree) 0.47035
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 4570861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-09-28 04:57:55

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 4884641
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:26:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHZ. 2013-09-28T04:41:00.54 0.6 undecidable manual S 288 52.2033 100 -0.07 47
IV.CERA.HHZ. 2013-09-28T04:40:58.27 0.6 undecidable manual S 122 42.7239 103 0.12 47
IV.GIUL.HHZ. 2013-09-28T04:40:57.30 0.6 undecidable manual S 225 38.628 105 0.23 47
IV.PTQR.HHZ. 2013-09-28T04:40:54.60 0.3 undecidable manual S 328 28.3494 112 0.12 72
IV.CERT.HHZ. 2013-09-28T04:40:53.41 0.1 undecidable manual P 288 52.2033 100 -0.2 91
IV.GUAR.HHZ. 2013-09-28T04:40:52.92 0.6 undecidable manual S 267 22.4553 120 -0.13 48
IV.CERA.HHZ. 2013-09-28T04:40:52.11 0.3 undecidable manual P 122 42.7239 103 -0.08 71
IV.GIUL.HHZ. 2013-09-28T04:40:51.67 0.1 positive manual P 225 38.628 105 0.1 96
IV.POFI.HHZ. 2013-09-28T04:40:51.14 0.3 undecidable manual S 132 14.4744 135 -0.2 73
IV.PTQR.HHZ. 2013-09-28T04:40:50.19 0.3 undecidable manual P 328 28.3494 112 0.11 72
IV.GUAR.HHZ. 2013-09-28T04:40:49.26 0.3 undecidable manual P 267 22.4553 120 0.01 75
IV.POFI.HHZ. 2013-09-28T04:40:48.31 0.1 positive manual P 132 14.4744 135 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHE. ML:1.1 0.000036150000000000005 0.34 AML other m 2013-09-28T04:41:01.60
IV.CERA.HHN. ML:1.1 0.000037000000000000005 0.3 AML other m 2013-09-28T04:41:03.17
IV.CERT.HHN. ML:1.4 0.00005505 0.08 AML other m 2013-09-28T04:41:00.74
IV.CERT.HHE. ML:1.5 0.00007744999999999999 0.2 AML other m 2013-09-28T04:41:00.83
IV.GIUL.HHE. ML:1.2 0.000051450000000000004 0.14 AML other m 2013-09-28T04:40:57.67
IV.GIUL.HHN. ML:1.2 0.0000558 1.26 AML other m 2013-09-28T04:40:57.70
IV.GUAR.HHN. ML:1.4 0.000143 1.56 AML other m 2013-09-28T04:40:53.98
IV.GUAR.HHE. ML:1.2 0.00009510000000000001 0.24 AML other m 2013-09-28T04:40:54.97
IV.POFI.HHE. ML:1.2 0.00010975 0.42 AML other m 2013-09-28T04:40:52.15
IV.POFI.HHN. ML:1.3 0.00015150000000000002 0.32 AML other m 2013-09-28T04:40:53.52
IV.PTQR.HHN. ML:1.4 0.0001215 0.18 AML other m 2013-09-28T04:40:55.09
IV.PTQR.HHE. ML:1.5 0.00014000000000000001 0.98 AML other m 2013-09-28T04:40:55.50
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