Earthquake with magnitude of ML 0.9 on date 16-10-2019 and time 05:33:15 (Italy) in region 6 km SW Civitella Alfedena (AQ)

A magnitude ML 0.9 earthquake occured in region: 6 km SW Civitella Alfedena (AQ), on

  • 16-10-2019 03:33:15 (UTC)
  • 16-10-2019 05:33:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.72, 13.91 at 11 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
Civitella Alfedena AQ 6 296 296
Villetta Barrea AQ 7 653 949
Settefrati FR 7 728 1677
Barrea AQ 8 726 2403
San Donato Val di Comino FR 8 2107 4510
Picinisco FR 9 1218 5728
Opi AQ 10 420 6148
Alfedena AQ 10 864 7012
Scontrone AQ 11 574 7586
Gallinaro FR 12 1269 8855
Pizzone IS 12 329 9184
San Biagio Saracinisco FR 12 349 9533
Montenero Val Cocchiara IS 13 538 10071
Villa Latina FR 13 1241 11312
Castel San Vincenzo IS 14 516 11828
Atina FR 14 4316 16144
Pescasseroli AQ 14 2203 18347
Alvito FR 15 2713 21060
Scapoli IS 17 680 21740
Cerro al Volturno IS 17 1281 23021
Belmonte Castello FR 18 739 23760
Vicalvi FR 18 783 24543
Rocchetta a Volturno IS 18 1113 25656
Castel di Sangro AQ 18 6538 32194
Posta Fibreno FR 18 1139 33333
Vallerotonda FR 19 1581 34914
Rionero Sannitico IS 19 1118 36032
Casalattico FR 19 574 36606
Casalvieri FR 19 2698 39304
Campoli Appennino FR 20 1725 41029
Acquafondata FR 20 263 41292
Roccaraso AQ 20 1627 42919

Municipalities with at least 50000 inhabitants

An earthquake occurred to
73 Km S of Chieti (51815 inhabitants)
80 Km NW of Caserta (76326 inhabitants)
82 Km SE of L'Aquila (69753 inhabitants)
86 Km N of Aversa (53047 inhabitants)
87 Km S of Pescara (121014 inhabitants)
88 Km E of Latina (125985 inhabitants)
91 Km S of Montesilvano (53738 inhabitants)
91 Km N of Giugliano in Campania (122974 inhabitants)
94 Km N of Marano di Napoli (59874 inhabitants)
94 Km NW of Acerra (59573 inhabitants)
94 Km E of Velletri (53303 inhabitants)
95 Km NW of Afragola (65057 inhabitants)
96 Km NW of Casoria (77642 inhabitants)
96 Km E of Tivoli (56533 inhabitants)
98 Km NW of Benevento (60091 inhabitants)
98 Km N of Pozzuoli (81661 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 0.9 2019-10-16
03:33:15
41.72 13.91 11 2019-10-16
04:08:48
Sala Sismica INGV-Roma 73281361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-16 03:33:15 ± 0.08
Latitude 41.72 ± 0.01
Longitude 13.91 ± 0.01
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73281361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 840
Semi-minor axis of confidence ellipse (meter) 218
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 840
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.2653
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 73281361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-16 04:08:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2019-10-16T03:33:25.45 0.3 undecidable manual S 305 0.2635 50 -0.18 70
IV.LRP.EHZ. 2019-10-16T03:33:25.55 0.6 undecidable manual S 254 0.2545 50 0.19 48
IV.POFI.HHZ. 2019-10-16T03:33:22.36 0.3 undecidable manual S 269 0.1502 50 0.09 74
IV.LRP.EHZ. 2019-10-16T03:33:21.28 0.3 undecidable manual P 254 0.2545 50 0.15 72
IV.CERA.HHZ. 2019-10-16T03:33:21.88 0.3 undecidable manual S 147 0.1439 50 -0.2 73
IV.MIDA.HHN. 2019-10-16T03:33:21.17 0.3 undecidable manual P 107 0.2653 50 -0.14 71
IV.VVLD.HHZ. 2019-10-16T03:33:21.16 0.1 undecidable manual P 305 0.2635 50 -0.12 95
IV.RNI2.HHZ. 2019-10-16T03:33:20.28 0.1 undecidable manual P 95 0.179 50 0.45 92
IT.OPI.HGE. 2019-10-16T03:33:20.21 0.1 undecidable manual S 313 0.0845 140 -0.17 100
IV.POFI.HHZ. 2019-10-16T03:33:19.45 0.1 undecidable manual P 269 0.1502 50 0.1 98
IV.CERA.HHZ. 2019-10-16T03:33:19.09 0.1 undecidable manual P 147 0.1439 50 -0.15 98
IT.OPI.HGE. 2019-10-16T03:33:18.36 0.1 undecidable manual P 313 0.0845 140 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHN. ML:0.9 6.76E-5 0.64 AML other m 2019-10-16T03:33:22.01
IV.CERA.HHE. ML:0.9 6.265E-5 1.36 AML other m 2019-10-16T03:33:24.22
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