Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 26-12-2019 and time 12:46:31 (UTC) in region 3 km SE Balsorano (AQ)

A magnitude ML 1.4 earthquake occured in region: 3 km SE Balsorano (AQ), on

  • 26-12-2019 12:46:31 (UTC)
  • 26-12-2019 13:46:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7830, 13.5930 at 14 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 3 3569 3569
Pescosolido FR 6 1555 5124
Sora FR 7 26144 31268
San Vincenzo Valle Roveto AQ 8 2347 33615
Campoli Appennino FR 9 1725 35340
Broccostella FR 9 2741 38081
Villavallelonga AQ 10 919 39000
Isola del Liri FR 12 11715 50715
Collelongo AQ 12 1233 51948
Castelliri FR 12 3454 55402
Posta Fibreno FR 13 1139 56541
Fontechiari FR 14 1303 57844
Morino AQ 14 1448 59292
Arpino FR 15 7262 66554
Vicalvi FR 15 783 67337
Civita d'Antino AQ 15 979 68316
Alvito FR 16 2713 71029
Pescasseroli AQ 17 2203 73232
Monte San Giovanni Campano FR 17 12929 86161
Veroli FR 18 20560 106721
Boville Ernica FR 18 8737 115458
Lecce nei Marsi AQ 19 1702 117160
Collepardo FR 19 968 118128
Fontana Liri FR 19 2953 121081
Casalvieri FR 20 2698 123779
Ortucchio AQ 20 1860 125639
Opi AQ 20 420 126059
Trasacco AQ 20 6246 132305

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km S of L'Aquila (69753 inhabitants)
67 Km NE of Latina (125985 inhabitants)
68 Km E of Velletri (53303 inhabitants)
69 Km E of Tivoli (56533 inhabitants)
76 Km E of Guidonia Montecelio (88673 inhabitants)
79 Km SW of Chieti (51815 inhabitants)
81 Km E of Aprilia (73446 inhabitants)
88 Km E of Anzio (54211 inhabitants)
91 Km E of Pomezia (62966 inhabitants)
92 Km SW of Pescara (121014 inhabitants)
93 Km E of Roma (2864731 inhabitants)
94 Km SW of Montesilvano (53738 inhabitants)
98 Km S of Teramo (54892 inhabitants)
100 Km NW of Caserta (76326 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 1.4 2019-12-26
12:46:31		 41.783 13.5928 14 2020-02-28
16:42:16		 Bollettino Sismico Italiano INGV 75017911
Reviewed
Rev100 		ML 1.4 2019-12-26
12:46:31		 41.7837 13.6003 14 2019-12-26
12:55:39		 Sala Sismica INGV-Roma 74995081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-26 12:46:31 ± 0.04
Latitude 41.7830 ± 0.0018
Longitude 13.5928 ± 0.0024
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75017911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 56
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 198
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55218
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 75017911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-27 10:08:46

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 74995081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-26 12:55:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CANO.HHZ. 2019-12-26T12:47:48.96 3.0 positive manual Pg 11.77 0
IV.RIBO.EHZ.01 2019-12-26T12:47:33.18 3.0 undecidable manual Sn 0.06 0
OX.CIMO.HHZ. 2019-12-26T12:47:31.98 3.0 negative manual Pg -2.52 0
IV.ZOVE.HNZ. 2019-12-26T12:47:29.34 3.0 undecidable manual Pg 2.72 0
IV.MSSA.HHZ. 2019-12-26T12:47:28.69 3.0 undecidable manual Pn 1.47 0
IV.NARO.HHZ. 2019-12-26T12:47:18.89 3.0 undecidable manual Sg -5.19 0
IV.ZCCA.HHZ. 2019-12-26T12:47:17.20 3.0 positive manual Pg 0.36 0
IV.AMUR.HHZ. 2019-12-26T12:47:16.97 3.0 undecidable manual Sn -9.99 0
IV.LATB.EHZ. 2019-12-26T12:46:50.49 0.3 undecidable manual S 239 61.2942 94 -0.25 66
IV.PTRJ.HNZ. 2019-12-26T12:46:49.85 3.0 undecidable manual Sg -0.3 0
IV.CERT.HHZ. 2019-12-26T12:46:48.59 0.3 undecidable manual S 290 53.7018 94 -0.12 69
IV.RCAV.EHZ. 2019-12-26T12:46:48.83 0.3 undecidable manual S 278 54.0015 94 0.04 70
IT.SULP.HGN. 2019-12-26T12:46:46.24 0.6 undecidable manual S 39 43.4232 96 0.27 46
IV.CERA.HHZ. 2019-12-26T12:46:45.24 0.3 undecidable manual S 120 40.8258 96 -0.03 71
IV.GIUL.HHZ. 2019-12-26T12:46:44.53 0.6 undecidable manual S 228 37.5291 97 0.13 47
IV.INTR.HHZ. 2019-12-26T12:46:44.06 0.3 undecidable manual S 45 36.1416 97 0.02 73
IV.MCI.EHE. 2019-12-26T12:46:44.45 0.6 undecidable manual S 151 37.1295 97 0.14 47
IV.LIK.EHN.01 2019-12-26T12:46:43.23 0.6 undecidable manual S 185 31.5462 99 0.4 45
IV.LATB.EHZ. 2019-12-26T12:46:42.37 0.3 undecidable manual P 239 61.2942 94 -0.4 64
IV.PTQR.HHZ. 2019-12-26T12:46:42.83 0.3 undecidable manual S 329 30.8469 99 0.17 71
IV.MIDA.HNZ. 2019-12-26T12:46:42.03 0.3 undecidable manual P 106 56.8986 94 -0.06 69
IV.CERT.HHZ. 2019-12-26T12:46:41.40 0.1 positive manual P 290 53.7018 94 -0.2 91
IV.RCAV.EHZ. 2019-12-26T12:46:41.46 0.1 undecidable manual P 278 54.0015 94 -0.18 91
IV.GUAR.HHZ. 2019-12-26T12:46:40.82 0.3 undecidable manual S 273 23.2545 105 0.16 72
IV.RNI2.HNE. 2019-12-26T12:46:40.94 1.0 undecidable manual P 101 47.1195 95 0.35 22
IT.SULP.HGN. 2019-12-26T12:46:39.87 0.1 undecidable manual P 39 43.4232 96 -0.14 93
IV.GIUL.HHZ. 2019-12-26T12:46:39.22 0.1 positive manual P 228 37.5291 97 0.11 95
IV.CERA.HHZ. 2019-12-26T12:46:39.48 0.1 positive manual P 120 40.8258 96 -0.13 93
IT.OPI.HGZ. 2019-12-26T12:46:39.59 0.3 undecidable manual S 92 19.6692 110 -0.15 73
IV.PTQR.HHZ. 2019-12-26T12:46:38.18 0.1 positive manual P 329 30.8469 99 0.08 97
IV.INTR.HHZ. 2019-12-26T12:46:38.83 0.1 positive manual P 45 36.1416 97 -0.07 96
IV.MCI.EHE. 2019-12-26T12:46:38.93 0.6 undecidable manual P 151 37.1295 97 -0.13 47
IV.POFI.HHZ. 2019-12-26T12:46:38.00 0.3 undecidable manual S 126 12.2766 128 -0.01 76
IV.LIK.EHN.01 2019-12-26T12:46:38.27 1.0 undecidable manual P 185 31.5462 99 0.07 24
IV.LRP.EHZ. 2019-12-26T12:46:38.54 0.3 undecidable manual S 182 15.0738 120 -0.1 74
IV.VVLD.HHZ. 2019-12-26T12:46:37.44 0.3 undecidable manual S 15 9.879 136 -0.11 75
IV.PTRJ.HNZ. 2019-12-26T12:46:37.05 3.0 undecidable manual P -3.14 0
IV.GUAR.HHZ. 2019-12-26T12:46:37.11 0.1 positive manual P 273 23.2545 105 0.16 96
IV.LRP.EHZ. 2019-12-26T12:46:36.00 0.1 undecidable manual P 182 15.0738 120 0.22 96
IT.OPI.HGZ. 2019-12-26T12:46:36.45 0.1 undecidable manual P 92 19.6692 110 0.03 100
IV.VVLD.HHZ. 2019-12-26T12:46:35.36 0.1 negative manual P 15 9.879 136 0.2 97
IV.POFI.HHZ. 2019-12-26T12:46:35.49 0.1 negative manual P 126 12.2766 128 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUAR.HHE. ML:1.2 0.00009015 1.02 AML other m 2019-12-26T12:46:37.20
IV.VVLD.HHN. ML:1.6 0.000409 0.42 AML other m 2019-12-26T12:46:37.79
IV.VVLD.HNN. ML:1.6 0.00041749999999999996 1.4 AML other m 2019-12-26T12:46:37.10
IV.VVLD.HHE. ML:1.5 0.000352 1.86 AML other m 2019-12-26T12:46:37.96
IV.VVLD.HNE. ML:1.5 0.00034250000000000003 0.5 AML other m 2019-12-26T12:46:37.97
IV.LRP.EHE. ML:1.9 0.0006194999999999999 0.18 AML other m 2019-12-26T12:46:38.96
IV.POFI.HHE. ML:1.2 0.000153 0.36 AML other m 2019-12-26T12:46:38.99
IV.LRP.EHN. ML:1.4 0.000183 0.78 AML other m 2019-12-26T12:46:39.45
IV.POFI.HHN. ML:1.1 0.000121 1.46 AML other m 2019-12-26T12:46:39.81
IV.GUAR.HHN. ML:1.4 0.0001515 1.76 AML other m 2019-12-26T12:46:40.04
IV.PTQR.HHE. ML:1.4 0.00010955 0.32 AML other m 2019-12-26T12:46:43.20
IV.PTQR.HHN. ML:1.1 0.000060950000000000004 0.26 AML other m 2019-12-26T12:46:44.22
IV.GIUL.HHE. ML:1.2 0.00004775 1.52 AML other m 2019-12-26T12:46:45.05
IV.INTR.HHE. ML:1.4 0.00008765 0.96 AML other m 2019-12-26T12:46:47.58
IV.GIUL.HHN. ML:1.2 0.000049600000000000006 0.48 AML other m 2019-12-26T12:46:47.97
IV.INTR.HHN. ML:1.4 0.00009934999999999999 0.56 AML other m 2019-12-26T12:46:47.71
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