Earthquake with magnitude of ML 1.8 on date 22-11-2019 and time 16:31:29 (UTC) in region 4 km SE Balsorano (AQ)

A magnitude ML 1.8 earthquake occured in region: 4 km SE Balsorano (AQ), on

  • 22-11-2019 16:31:29 (UTC)
  • 22-11-2019 17:31:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.77, 13.59 at 13 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
Pescosolido FR 6 1555 5124
Sora FR 6 26144 31268
Campoli Appennino FR 9 1725 32993
San Vincenzo Valle Roveto AQ 9 2347 35340
Broccostella FR 9 2741 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
Vicalvi FR 15 783 65889
Morino AQ 15 1448 67337
Alvito FR 16 2713 70050
Civita d'Antino AQ 16 979 71029
Monte San Giovanni Campano FR 16 12929 83958
Veroli FR 17 20560 104518
Pescasseroli AQ 17 2203 106721
Boville Ernica FR 17 8737 115458
Fontana Liri FR 18 2953 118411
Collepardo FR 18 968 119379
Casalvieri FR 19 2698 122077
Santopadre FR 19 1357 123434
Lecce nei Marsi AQ 20 1702 125136

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)
68 Km E of Velletri (53303 inhabitants)
69 Km E of Tivoli (56533 inhabitants)
76 Km E of Guidonia Montecelio (88673 inhabitants)
80 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 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)
99 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 1.8 2019-11-22
16:31:29
41.77 13.59 13 2019-11-22
16:42:34
Sala Sismica INGV-Roma 73967641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-22 16:31:29 ± 0.06
Latitude 41.77 ± 0.00
Longitude 13.59 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73967641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 418
Semi-minor axis of confidence ellipse (meter) 121
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 310
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.54499
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 73967641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-22 16:42:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2019-11-22T16:31:47.22 0.3 undecidable manual S 58 0.5198 93 -0.15 68
IV.LATB.EHZ. 2019-11-22T16:31:47.85 0.6 undecidable manual S 239 0.545 93 -0.27 43
IV.MIDA.HHZ. 2019-11-22T16:31:47.83 0.3 undecidable manual S 105 0.5135 93 0.64 59
IV.T0110.HHZ. 2019-11-22T16:31:46.27 0.1 undecidable manual S 17 0.4766 93 0.18 91
IV.FAGN.HHZ. 2019-11-22T16:31:46.89 0.3 undecidable manual S 360 0.4919 93 0.34 66
IV.GIUL.HHZ. 2019-11-22T16:31:42.15 0.3 undecidable manual S 229 0.3292 96 0.4 67
IV.CERA.HHZ. 2019-11-22T16:31:42.63 0.6 undecidable manual S 119 0.366 95 -0.19 46
IV.PTQR.HHZ. 2019-11-22T16:31:40.49 0.1 undecidable manual S 331 0.2851 97 0.05 97
IV.LATB.EHZ. 2019-11-22T16:31:39.82 0.1 undecidable manual P 239 0.545 93 -0.43 84
IV.MIDA.HHZ. 2019-11-22T16:31:39.76 0.1 undecidable manual P 105 0.5135 93 0.05 92
IV.LPEL.HHZ. 2019-11-22T16:31:39.44 0.1 undecidable manual P 58 0.5198 93 -0.38 86
IV.FAGN.HHZ. 2019-11-22T16:31:39.16 0.1 undecidable manual P 360 0.4919 93 -0.19 90
IV.T0110.HHZ. 2019-11-22T16:31:38.96 0.1 undecidable manual P 17 0.4766 93 -0.12 92
IV.CERA.HHZ. 2019-11-22T16:31:37.18 0.1 undecidable manual P 119 0.366 95 -0.01 96
IV.GUAR.HHZ. 2019-11-22T16:31:37.97 0.3 undecidable manual S 276 0.2068 102 -0.19 71
IV.GIUL.HHZ. 2019-11-22T16:31:36.75 0.1 positive manual P 229 0.3292 96 0.17 94
IV.LRP.EHZ. 2019-11-22T16:31:36.01 0.1 undecidable manual S 181 0.1268 119 0.09 99
IV.VVLD.HHZ. 2019-11-22T16:31:35.13 0.1 undecidable manual S 15 0.0989 129 -0.13 98
IV.PTQR.HHZ. 2019-11-22T16:31:35.72 0.1 undecidable manual P 331 0.2851 97 -0.1 95
IV.POFI.HHZ. 2019-11-22T16:31:35.14 0.3 undecidable manual S 121 0.1079 126 -0.31 71
IV.GUAR.HHZ. 2019-11-22T16:31:34.71 0.1 undecidable manual P 276 0.2068 102 0.21 96
IV.LRP.EHZ. 2019-11-22T16:31:33.36 0.1 undecidable manual P 181 0.1268 119 0.15 98
IV.VVLD.HHZ. 2019-11-22T16:31:33.00 0.1 positive manual P 15 0.0989 129 0.18 98
IV.POFI.HHZ. 2019-11-22T16:31:32.99 0.1 undecidable manual P 121 0.1079 126 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HNN. ML:2.5 0.003105 0.28 AML other m 2019-11-22T16:31:35.43
IV.VVLD.HHN. ML:2.5 0.003285 0.3 AML other m 2019-11-22T16:31:35.43
IV.VVLD.HHE. ML:2.5 0.003345 0.42 AML other m 2019-11-22T16:31:35.49
IV.VVLD.HNE. ML:2.5 0.00304 0.44 AML other m 2019-11-22T16:31:35.50
IV.LRP.EHE. ML:2.4 0.00247 0.18 AML other m 2019-11-22T16:31:36.30
IV.LRP.EHN. ML:2.4 0.0022 0.26 AML other m 2019-11-22T16:31:36.36
IV.T0110.HHE. ML:2 0.0002395 0.34 AML other m 2019-11-22T16:31:47.52
IV.T0110.HHN. ML:2 0.0002195 0.2 AML other m 2019-11-22T16:31:47.66
IV.POFI.HHE. ML:1.6 0.00036604295 0.256 AML other m 2019-11-22T16:31:35.62
IV.POFI.HHN. ML:1.4 0.00024151795 0.1408 AML other m 2019-11-22T16:31:37.56
IV.GUAR.HHE. ML:2.1 0.0007126385 0.0512 AML other m 2019-11-22T16:31:38.93
IV.GUAR.HHN. ML:2.2 0.0010377983 0.2688 AML other m 2019-11-22T16:31:38.57
IV.PTQR.HHE. ML:1.6 0.0001898984 0.3072 AML other m 2019-11-22T16:31:40.87
IV.PTQR.HHN. ML:1.8 0.0002530083 0.2176 AML other m 2019-11-22T16:31:41.97
IV.GIUL.HHE. ML:1.4 9.0996595E-5 0.1792 AML other m 2019-11-22T16:31:42.38
IV.GIUL.HHN. ML:1.6 0.0001302739 0.1792 AML other m 2019-11-22T16:31:45.19
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download