Earthquake with magnitude of ML 1.0 on date 19-08-2019 and time 08:03:05 (Italy) in region 3 km SE Balsorano (AQ)

A magnitude ML 1.0 earthquake occured in region: 3 km SE Balsorano (AQ), on

  • 19-08-2019 06:03:05 (UTC)
  • 19-08-2019 08:03:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.79, 13.58 at 9 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
Campoli Appennino FR 10 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
Morino AQ 14 1448 56850
Posta Fibreno FR 14 1139 57989
Civita d'Antino AQ 15 979 58968
Fontechiari FR 15 1303 60271
Arpino FR 16 7262 67533
Vicalvi FR 16 783 68316
Alvito FR 17 2713 71029
Pescasseroli AQ 17 2203 73232
Veroli FR 17 20560 93792
Monte San Giovanni Campano FR 17 12929 106721
Collepardo FR 18 968 107689
Lecce nei Marsi AQ 18 1702 109391
Boville Ernica FR 19 8737 118128
Civitella Roveto AQ 19 3268 121396
Ortucchio AQ 19 1860 123256
Trasacco AQ 19 6246 129502
Fontana Liri FR 20 2953 132455

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
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 1.0 2019-08-19
06:03:05
41.79 13.59 9 2019-08-19
06:12:23
Sala Sismica INGV-Roma 71618031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-19 06:03:05 ± 0.09
Latitude 41.79 ± 0.00
Longitude 13.59 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71618031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 320
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.32645
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 71618031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-19 06:12:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2019-08-19T06:03:17.88 0.3 undecidable manual S 47 0.3265 50 0.02 74
IV.PTQR.HHE. 2019-08-19T06:03:16.44 0.6 undecidable manual S 330 0.2716 107 0.26 48
IV.GUAR.HHE. 2019-08-19T06:03:13.53 0.3 undecidable manual S 272 0.2032 112 -0.16 74
IV.INTR.HHZ. 2019-08-19T06:03:12.43 0.3 undecidable manual P 47 0.3265 50 -0.11 73
IV.PTQR.HHE. 2019-08-19T06:03:11.80 0.1 undecidable manual P 330 0.2716 107 0.24 96
IV.LRP.EHE. 2019-08-19T06:03:11.78 0.3 undecidable manual S 180 0.1403 120 0.28 73
IV.POFI.HHZ. 2019-08-19T06:03:10.59 0.3 undecidable manual S 126 0.1178 124 -0.17 75
IV.GUAR.HHE. 2019-08-19T06:03:09.82 0.1 undecidable manual P 272 0.2032 112 -0.31 96
IV.VVLD.HHZ. 2019-08-19T06:03:09.71 0.3 undecidable manual S 19 0.0872 133 -0.12 76
IV.LRP.EHE. 2019-08-19T06:03:09.01 0.1 undecidable manual P 180 0.1403 120 0.15 100
IV.VVLD.HHZ. 2019-08-19T06:03:08.03 0.3 undecidable manual P 19 0.0872 133 0.13 76
IV.POFI.HHZ. 2019-08-19T06:03:08.23 0.6 undecidable manual P 126 0.1178 124 -0.2 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:1.1 0.00016197415 0.1408 AML other m 2019-08-19T06:03:10.19
IV.VVLD.HHN. ML:1 0.000137573395 0.3008 AML other m 2019-08-19T06:03:09.94
IV.VVLD.HNE. ML:1.1 0.00016044385 0.1504 AML other m 2019-08-19T06:03:10.19
IV.VVLD.HNN. ML:1 0.00012253212 0.2208 AML other m 2019-08-19T06:03:09.94
IV.POFI.HHE. ML:0.4 2.9605335E-5 0.4576 AML other m 2019-08-19T06:03:10.88
IV.POFI.HHN. ML:0.3 2.159886E-5 0.4992 AML other m 2019-08-19T06:03:10.95
IV.POFI.HNE. ML:0.9 8.7995705E-5 0.5728 AML other m 2019-08-19T06:03:11.17
IV.POFI.HNN. ML:0.5 3.505031E-5 0.4416 AML other m 2019-08-19T06:03:10.71
IV.INTR.HHE. ML:1.1 4.5927485E-5 0.2208 AML other m 2019-08-19T06:03:18.01
IV.INTR.HHN. ML:1.1 4.459631E-5 0.1216 AML other m 2019-08-19T06:03:18.74
IV.INTR.HNE. ML:1.4 0.000100597005 0.2688 AML other m 2019-08-19T06:03:18.13
IV.INTR.HNN. ML:1.6 0.0001389807 0.9504 AML other m 2019-08-19T06:03:18.12
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