Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 27-12-2019 and time 03:06:08 (Italy) in region 4 km SE Balsorano (AQ)

A magnitude ML 0.8 earthquake occured in region: 4 km SE Balsorano (AQ), on

  • 27-12-2019 02:06:08 (UTC)
  • 27-12-2019 03:06:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7830, 13.5980 at 15 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 4 3569 3569
Pescosolido FR 6 1555 5124
Sora FR 7 26144 31268
Campoli Appennino FR 8 1725 32993
San Vincenzo Valle Roveto AQ 8 2347 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 15 1448 59292
Vicalvi FR 15 783 60075
Arpino FR 15 7262 67337
Civita d'Antino AQ 16 979 68316
Alvito FR 16 2713 71029
Pescasseroli AQ 16 2203 73232
Monte San Giovanni Campano FR 17 12929 86161
Veroli FR 18 20560 106721
Lecce nei Marsi AQ 18 1702 108423
Boville Ernica FR 19 8737 117160
Collepardo FR 19 968 118128
Opi AQ 19 420 118548
Casalvieri FR 19 2698 121246
Fontana Liri FR 19 2953 124199
Ortucchio AQ 20 1860 126059
San Donato Val di Comino FR 20 2107 128166

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)
69 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)
82 Km E of Aprilia (73446 inhabitants)
89 Km E of Anzio (54211 inhabitants)
91 Km SW of Pescara (121014 inhabitants)
92 Km E of Pomezia (62966 inhabitants)
93 Km E of Roma (2864731 inhabitants)
93 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 0.8 2019-12-27
02:06:08		 41.7827 13.5983 15 2020-02-28
16:42:16		 Bollettino Sismico Italiano INGV 75019811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-27 02:06:08 ± 0.07
Latitude 41.7827 ± 0.0027
Longitude 13.5983 ± 0.0036
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75019811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 71
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
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 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.49103
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 75019811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-27 12:21:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHZ. 2019-12-27T02:06:25.24 0.3 undecidable manual S 290 54.2013 95 -0.27 68
IV.RCAV.EHZ. 2019-12-27T02:06:25.40 0.6 undecidable manual S 278 54.501 95 -0.19 46
IV.CERA.HNN. 2019-12-27T02:06:21.78 0.3 undecidable manual S 120 40.3263 98 -0.06 71
IV.MCI.EHE. 2019-12-27T02:06:21.07 0.3 undecidable manual S 151 36.9297 99 0.14 71
IV.INTR.HHZ. 2019-12-27T02:06:20.62 0.6 undecidable manual S 45 35.8419 99 -0.03 48
IV.GIUL.HHZ. 2019-12-27T02:06:20.99 0.3 undecidable manual S 229 37.8288 98 -0.18 71
IV.PTQR.HHZ. 2019-12-27T02:06:19.51 0.3 undecidable manual S 328 31.1466 101 0.09 73
IV.CERT.HHZ. 2019-12-27T02:06:18.13 0.1 undecidable manual P 290 54.2013 95 -0.21 91
IV.RCAV.EHZ. 2019-12-27T02:06:18.51 0.6 undecidable manual P 278 54.501 95 0.13 46
IV.RNI2.HNE. 2019-12-27T02:06:17.13 1.0 undecidable manual P 101 46.7199 96 -0.06 24
IV.GUAR.HNN. 2019-12-27T02:06:17.53 0.3 undecidable manual S 273 23.6541 107 0.04 74
IT.OPI.HGE. 2019-12-27T02:06:16.34 0.3 undecidable manual S 92 19.1697 114 -0.02 75
IV.INTR.HHZ. 2019-12-27T02:06:15.55 0.1 positive manual P 45 35.8419 99 0.02 98
IV.GIUL.HHZ. 2019-12-27T02:06:15.96 0.1 positive manual P 229 37.8288 98 0.12 95
IV.MCI.EHE. 2019-12-27T02:06:15.31 1.0 undecidable manual P 151 36.9297 99 -0.38 22
IV.LRP.EHZ. 2019-12-27T02:06:15.26 0.3 undecidable manual S 184 15.0738 123 -0.13 74
IV.CERA.HNN. 2019-12-27T02:06:15.93 0.3 undecidable manual P 120 40.3263 98 -0.29 68
IV.PTQR.HHZ. 2019-12-27T02:06:14.95 0.1 undecidable manual P 328 31.1466 101 0.13 96
IV.POFI.HHZ. 2019-12-27T02:06:14.70 0.3 undecidable manual S 128 11.877 132 -0.01 76
IV.VVLD.HHZ. 2019-12-27T02:06:14.14 0.3 undecidable manual S 12 9.879 138 -0.19 74
IT.OPI.HGE. 2019-12-27T02:06:13.15 0.1 undecidable manual P 92 19.1697 114 0.09 99
IV.GUAR.HNN. 2019-12-27T02:06:13.83 0.1 positive manual P 273 23.6541 107 0.12 97
IV.VVLD.HHZ. 2019-12-27T02:06:12.07 0.1 negative manual P 12 9.879 138 0.18 99
IV.POFI.HHZ. 2019-12-27T02:06:12.21 0.1 negative manual P 128 11.877 132 0.11 100
IV.LRP.EHZ. 2019-12-27T02:06:12.70 0.1 undecidable manual P 184 15.0738 123 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHN. ML:1.1 0.00011355 0.6 AML other m 2019-12-27T02:06:14.50
IV.VVLD.HHE. ML:1.0 0.0000948 0.48 AML other m 2019-12-27T02:06:14.67
IV.LRP.EHE. ML:1.4 0.00017299999999999998 0.18 AML other m 2019-12-27T02:06:15.68
IV.POFI.HHE. ML:0.6 0.0000359 0.36 AML other m 2019-12-27T02:06:15.52
IV.LRP.EHN. ML:0.8 0.0000502 1.22 AML other m 2019-12-27T02:06:15.17
IV.POFI.HHN. ML:0.6 0.000036 0.24 AML other m 2019-12-27T02:06:16.53
IV.VVLD.HNE. ML:1.0 0.00010427371 0.1408 AML other m 2019-12-27T02:06:14.74
IV.VVLD.HNN. ML:1.0 0.000103889425 0 AML other m 2019-12-27T02:06:14.50
IV.INTR.HHN. ML:0.7 0.00002105785 0.24 AML other m 2019-12-27T02:06:23.22
IV.INTR.HHE. ML:0.6 0.000016588038 0.3008 AML other m 2019-12-27T02:06:21.54
IV.GIUL.HHE. ML:0.2 0.000004925718500000001 0.16 AML other m 2019-12-27T02:06:21.68
IV.GIUL.HHN. ML:0.2 0.000005763149000000001 0.1792 AML other m 2019-12-27T02:06:22.33
IV.CERT.HHE. ML:0.6 0.000008494132 0 AML other m 2019-12-27T02:06:25.98
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