Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 27-12-2019 and time 07:30:00 (UTC) in region 3 km SE Balsorano (AQ)

A magnitude ML 0.7 earthquake occured in region: 3 km SE Balsorano (AQ), on

  • 27-12-2019 07:30:00 (UTC)
  • 27-12-2019 08:30:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7860, 13.5880 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 7 1555 5124
Sora FR 8 26144 31268
San Vincenzo Valle Roveto AQ 8 2347 33615
Campoli Appennino FR 9 1725 35340
Villavallelonga AQ 10 919 36259
Broccostella FR 10 2741 39000
Collelongo AQ 11 1233 40233
Isola del Liri FR 12 11715 51948
Castelliri FR 12 3454 55402
Posta Fibreno FR 14 1139 56541
Morino AQ 14 1448 57989
Fontechiari FR 15 1303 59292
Civita d'Antino AQ 15 979 60271
Arpino FR 15 7262 67533
Vicalvi FR 16 783 68316
Alvito FR 17 2713 71029
Pescasseroli AQ 17 2203 73232
Monte San Giovanni Campano FR 17 12929 86161
Veroli FR 18 20560 106721
Lecce nei Marsi AQ 18 1702 108423
Collepardo FR 18 968 109391
Boville Ernica FR 19 8737 118128
Ortucchio AQ 20 1860 119988
Fontana Liri FR 20 2953 122941
Trasacco AQ 20 6246 129187
Civitella Roveto AQ 20 3268 132455
Casalvieri FR 20 2698 135153

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)
68 Km E of Tivoli (56533 inhabitants)
75 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)
92 Km E of Roma (2864731 inhabitants)
93 Km SW of Montesilvano (53738 inhabitants)
98 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 0.7 2019-12-27
07:30:00		 41.7857 13.5882 14 2020-02-28
16:42:16		 Bollettino Sismico Italiano INGV 75019921
Reviewed
Rev100 		ML 0.8 2019-12-27
07:30:01		 41.7823 13.5868 12 2019-12-27
07:42:37		 Sala Sismica INGV-Roma 75013461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-27 07:30:00 ± 0.1
Latitude 41.7857 ± 0.0027
Longitude 13.5882 ± 0.0048
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 75019921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 349
Semi-minor axis of confidence ellipse (meter) 158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 314
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 75019921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-27 12:38:05

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 75013461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-27 07:42:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHE. 2019-12-27T07:30:17.41 0.3 undecidable manual S 290 53.3022 94 -0.09 69
IV.GIGS.HHZ. 2019-12-27T07:30:15.00 3.0 undecidable manual P 0
IV.CERA.HNN. 2019-12-27T07:30:14.26 0.3 undecidable manual S 120 41.3253 95 -0.05 71
IV.INTR.HHE. 2019-12-27T07:30:13.11 0.3 undecidable manual S 46 36.2415 96 0.15 71
IV.GIUL.HHZ. 2019-12-27T07:30:12.93 0.6 undecidable manual S 228 37.4292 96 -0.35 45
IV.PTQR.HHZ. 2019-12-27T07:30:11.49 0.3 undecidable manual S 329 30.4473 98 0.06 72
IV.CERT.HHE. 2019-12-27T07:30:10.11 0.1 undecidable manual P 290 53.3022 94 -0.33 88
IV.GUAR.HHZ. 2019-12-27T07:30:09.47 0.3 undecidable manual S 273 22.8549 104 0.03 74
IV.CERA.HNN. 2019-12-27T07:30:08.92 1.0 undecidable manual P 120 41.3253 95 0.32 23
IT.OPI.HGE. 2019-12-27T07:30:08.44 0.3 undecidable manual S 93 20.0688 107 -0.28 70
IV.GIUL.HHZ. 2019-12-27T07:30:08.20 0.1 undecidable manual P 228 37.4292 96 0.19 93
IV.INTR.HHE. 2019-12-27T07:30:07.80 0.1 undecidable manual P 46 36.2415 96 -0.02 96
IV.LRP.EHZ. 2019-12-27T07:30:07.49 0.3 undecidable manual S 180 15.3735 117 -0.07 74
IV.VVLD.HHZ. 2019-12-27T07:30:06.35 0.3 undecidable manual S 17 9.7791 135 0.01 75
IV.GUAR.HHZ. 2019-12-27T07:30:06.03 0.1 positive manual P 273 22.8549 104 0.24 94
IV.POFI.HHZ. 2019-12-27T07:30:06.81 0.3 undecidable manual S 126 12.7761 124 -0.15 74
IV.PTQR.HHZ. 2019-12-27T07:30:06.51 0.3 undecidable manual P 329 30.4473 98 -0.43 67
IT.OPI.HGE. 2019-12-27T07:30:05.40 0.1 undecidable manual P 93 20.0688 107 0.03 100
IV.LRP.EHZ. 2019-12-27T07:30:04.97 0.1 undecidable manual P 180 15.3735 117 0.26 95
IV.VVLD.HHZ. 2019-12-27T07:30:04.27 0.1 negative manual P 17 9.7791 135 0.27 96
IV.POFI.HHZ. 2019-12-27T07:30:04.41 0.1 negative manual P 126 12.7761 124 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:0.9 0.000075 0.48 AML other m 2019-12-27T07:30:06.65
IV.VVLD.HHN. ML:0.7 0.0000499 0.86 AML other m 2019-12-27T07:30:07.06
IV.LRP.EHE. ML:1.2 0.00012440000000000002 0.18 AML other m 2019-12-27T07:30:07.88
IV.LRP.EHN. ML:0.7 0.00004505 1.22 AML other m 2019-12-27T07:30:07.37
IV.VVLD.HNE. ML:0.8 0.0000650983195 0.1216 AML other m 2019-12-27T07:30:06.65
IV.POFI.HHE. ML:0.5 0.000028266515 0.1024 AML other m 2019-12-27T07:30:07.68
IV.POFI.HHN. ML:0.3 0.000018651629999999998 0.16 AML other m 2019-12-27T07:30:08.78
IV.GUAR.HHN. ML:0.6 0.0000249357395 0.1024 AML other m 2019-12-27T07:30:10.04
IV.GUAR.HHE. ML:0.4 0.00001707434 0.1024 AML other m 2019-12-27T07:30:10.23
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