Earthquake with magnitude of ML 1.1 on date 11-11-2019 and time 23:43:15 (Italy) in region 4 km SE Balsorano (AQ)

A magnitude ML 1.1 earthquake occured in region: 4 km SE Balsorano (AQ), on

  • 11-11-2019 22:43:15 (UTC)
  • 11-11-2019 23:43:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.78, 13.58 at 10 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 4 3569 3569
Sora FR 7 26144 29713
Pescosolido FR 7 1555 31268
San Vincenzo Valle Roveto AQ 8 2347 33615
Broccostella FR 9 2741 36356
Campoli Appennino FR 9 1725 38081
Isola del Liri FR 11 11715 49796
Castelliri FR 11 3454 53250
Villavallelonga AQ 11 919 54169
Collelongo AQ 13 1233 55402
Posta Fibreno FR 13 1139 56541
Fontechiari FR 14 1303 57844
Arpino FR 14 7262 65106
Morino AQ 14 1448 66554
Vicalvi FR 15 783 67337
Civita d'Antino AQ 15 979 68316
Monte San Giovanni Campano FR 16 12929 81245
Veroli FR 16 20560 101805
Alvito FR 17 2713 104518
Boville Ernica FR 17 8737 113255
Pescasseroli AQ 18 2203 115458
Collepardo FR 18 968 116426
Fontana Liri FR 18 2953 119379
Casalvieri FR 19 2698 122077
Santopadre FR 20 1357 123434
Vico nel Lazio FR 20 2234 125668
Lecce nei Marsi AQ 20 1702 127370

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km NE of Latina (125985 inhabitants)
66 Km S of L'Aquila (69753 inhabitants)
67 Km E of Velletri (53303 inhabitants)
68 Km E of Tivoli (56533 inhabitants)
75 Km E of Guidonia Montecelio (88673 inhabitants)
80 Km E of Aprilia (73446 inhabitants)
80 Km SW of Chieti (51815 inhabitants)
87 Km E of Anzio (54211 inhabitants)
90 Km E of Pomezia (62966 inhabitants)
92 Km E of Roma (2864731 inhabitants)
93 Km SW of Pescara (121014 inhabitants)
95 Km SW of Montesilvano (53738 inhabitants)
99 Km S of Teramo (54892 inhabitants)
100 Km NW of Caserta (76326 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 2019-11-11
22:43:15
41.78 13.58 10 2019-11-11
22:48:32
Sala Sismica INGV-Roma 73791741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-11 22:43:15 ± 0.09
Latitude 41.78 ± 0.00
Longitude 13.58 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73791741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28059
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 73791741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-11 22:48:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2019-11-11T22:43:31.60 3.0 undecidable manual P -0.02 0
IV.PTQR.HHN. 2019-11-11T22:43:25.92 0.6 undecidable manual S 331 0.2806 50 -0.31 46
IV.GUAR.HHZ. 2019-11-11T22:43:23.68 0.6 undecidable manual S 276 0.2014 115 -0.12 48
IV.GIUL.HHZ. 2019-11-11T22:43:23.47 3.0 undecidable manual P 0.52 0
IV.PTQR.HHN. 2019-11-11T22:43:21.79 0.1 undecidable manual P 331 0.2806 50 0.19 94
IV.LRP.EHZ. 2019-11-11T22:43:21.55 0.6 undecidable manual S 178 0.1277 126 0.2 48
IV.VVLD.HHZ. 2019-11-11T22:43:20.55 0.6 undecidable manual S 18 0.0998 133 0.05 50
IV.GUAR.HHZ. 2019-11-11T22:43:20.08 0.6 positive manual P 276 0.2014 115 -0.11 48
IV.POFI.HHZ. 2019-11-11T22:43:20.68 0.3 undecidable manual S 120 0.1133 129 -0.22 72
IV.POFI.HHZ. 2019-11-11T22:43:18.49 0.1 undecidable manual P 120 0.1133 129 -0.03 100
IV.LRP.EHZ. 2019-11-11T22:43:18.90 1.0 undecidable manual P 178 0.1277 126 0.12 24
IV.VVLD.HHZ. 2019-11-11T22:43:18.39 0.1 negative manual P 18 0.0998 133 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHN. ML:1 0.000128 0.28 AML other m 2019-11-11T22:43:20.66
IV.VVLD.HHE. ML:1 0.000129 0.42 AML other m 2019-11-11T22:43:20.66
IV.LRP.EHE. ML:1.3 0.000204 0.16 AML other m 2019-11-11T22:43:21.77
IV.LRP.EHN. ML:1.2 0.0001455 0.08 AML other m 2019-11-11T22:43:21.96
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