Earthquake with magnitude of ML 1.1 on date 27-12-2019 and time 08:15:35 (UTC) in region 3 km SE Balsorano (AQ)

A magnitude ML 1.1 earthquake occured in region: 3 km SE Balsorano (AQ), on

  • 27-12-2019 08:15:35 (UTC)
  • 27-12-2019 09:15:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.79, 13.59 at 15 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

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
San Vincenzo Valle Roveto AQ 7 2347 7471
Sora FR 8 26144 33615
Villavallelonga AQ 9 919 34534
Campoli Appennino FR 9 1725 36259
Broccostella FR 10 2741 39000
Collelongo AQ 11 1233 40233
Isola del Liri FR 13 11715 51948
Castelliri FR 13 3454 55402
Morino AQ 14 1448 56850
Posta Fibreno FR 14 1139 57989
Civita d'Antino AQ 15 979 58968
Fontechiari FR 15 1303 60271
Vicalvi FR 16 783 61054
Arpino FR 16 7262 68316
Pescasseroli AQ 16 2203 70519
Alvito FR 17 2713 73232
Lecce nei Marsi AQ 18 1702 74934
Monte San Giovanni Campano FR 18 12929 87863
Veroli FR 18 20560 108423
Ortucchio AQ 19 1860 110283
Collepardo FR 19 968 111251
Trasacco AQ 19 6246 117497
Boville Ernica FR 19 8737 126234
Civitella Roveto AQ 20 3268 129502
Opi AQ 20 420 129922
Bisegna AQ 20 223 130145
Gioia dei Marsi AQ 20 1989 132134

Municipalities with at least 50000 inhabitants

An earthquake occurred to
64 Km S of L'Aquila (69753 inhabitants)
68 Km NE of Latina (125985 inhabitants)
69 Km E of Tivoli (56533 inhabitants)
69 Km E of Velletri (53303 inhabitants)
75 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)
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)
97 Km S of Teramo (54892 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.1 2019-12-27
08:15:35
41.79 13.59 15 2019-12-27
08:26:09
Sala Sismica INGV-Roma 75015101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-27 08:15:35 ± 0.13
Latitude 41.79 ± 0.00
Longitude 13.59 ± 0.01
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75015101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 499
Semi-minor axis of confidence ellipse (meter) 118
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
Circular confidence region, given by single value of horizontal uncertainty (meter) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.48114
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 75015101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-27 08:26:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2019-12-27T08:17:13.24 3.0 undecidable manual Sg 11.9 0
AC.VLO.HHZ. 2019-12-27T08:17:01.18 3.0 undecidable manual Pg 18.139999 0
IV.TDS.HHZ. 2019-12-27T08:16:56.75 3.0 undecidable manual Sn 1.45 0
SL.KOGS.BHZ. 2019-12-27T08:16:55.07 3.0 undecidable manual Pn 4.82 0
IV.CSNT.HHZ. 2019-12-27T08:16:49.26 3.0 undecidable manual Sg 2.7 0
IV.ERC.EHZ. 2019-12-27T08:16:43.89 3.0 undecidable manual Pg 11.56 0
IV.OSSC.HNZ. 2019-12-27T08:16:42.01 3.0 undecidable manual Sn -5.98 0
IV.TREG.HNZ. 2019-12-27T08:16:40.88 3.0 negative manual Pn 2.19 0
IV.SACS.HNZ. 2019-12-27T08:16:26.36 3.0 undecidable manual Sn -1.78 0
IV.SENA.HHZ. 2019-12-27T08:16:26.80 3.0 undecidable manual Pn -1.22 0
IV.MRB1.HHZ. 2019-12-27T08:16:12.08 3.0 undecidable manual S -0.5 0
IV.PE3.EHZ. 2019-12-27T08:16:07.72 3.0 negative manual Pn -2.7 0
IV.CERT.HHZ. 2019-12-27T08:15:51.76 0.6 undecidable manual S 289 0.4811 95 -0.01 47
IV.VIVA.HHZ. 2019-12-27T08:15:49.16 3.0 undecidable manual P 0.51 0
IV.GIUL.HHZ. 2019-12-27T08:15:47.86 0.6 undecidable manual S 227 0.3444 99 0.12 47
IV.CERT.HHZ. 2019-12-27T08:15:44.53 0.6 positive manual P 289 0.4811 95 -0.16 46
IV.GUAR.HHZ. 2019-12-27T08:15:43.85 0.6 undecidable manual S 271 0.2095 108 0.01 49
IV.INTR.HHZ. 2019-12-27T08:15:42.00 0.1 positive manual P 46 0.3193 100 0.07 96
IV.GIUL.HHZ. 2019-12-27T08:15:42.45 0.3 negative manual P 227 0.3444 99 0.09 71
IV.LRP.EHZ. 2019-12-27T08:15:41.77 0.6 undecidable manual S 182 0.1448 121 -0.33 47
IV.VVLD.HHZ. 2019-12-27T08:15:40.59 0.6 undecidable manual S 16 0.0809 142 -0.07 50
IV.PTQR.HHN. 2019-12-27T08:15:40.48 0.6 undecidable manual P 328 0.2707 102 -0.64 42
IV.GUAR.HHZ. 2019-12-27T08:15:40.25 0.1 positive manual P 271 0.2095 108 0.14 96
IV.LRP.EHZ. 2019-12-27T08:15:39.14 0.3 negative manual P 182 0.1448 121 0.04 75
IV.POFI.HHZ. 2019-12-27T08:15:38.67 0.1 undecidable manual P 130 0.116 129 -0.02 100
IV.VVLD.HHZ. 2019-12-27T08:15:38.47 0.1 negative manual P 16 0.0809 142 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:1.3 0.0001855 0.16 AML other m 2019-12-27T08:15:40.80
IV.VVLD.HHN. ML:1.3 0.000189 1.4 AML other m 2019-12-27T08:15:40.88
IV.LRP.EHN. ML:1 6.76E-5 0.76 AML other m 2019-12-27T08:15:42.56
IV.LRP.EHE. ML:1.2 0.0001258 0.1 AML other m 2019-12-27T08:15:42.36
IV.GUAR.HHN. ML:1.1 7.01E-5 0.24 AML other m 2019-12-27T08:15:44.15
IV.GUAR.HHE. ML:0.8 3.865E-5 0.8 AML other m 2019-12-27T08:15:44.49
IV.VVLD.HNE. ML:1.2 0.0001642722 0.1728 AML other m 2019-12-27T08:15:40.95
IV.VVLD.HNN. ML:1.2 0.0001507095 0.1216 AML other m 2019-12-27T08:15:40.88
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download