Earthquake with magnitude of ML 0.7 on date 16-09-2018 and time 14:50:40 (Italy) in region 2 km NW Balsorano (AQ)

A magnitude ML 0.7 earthquake occured in region: 2 km NW Balsorano (AQ), on

  • 16-09-2018 12:50:40 (UTC)
  • 16-09-2018 14:50:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.82, 13.55 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 2 3569 3569
San Vincenzo Valle Roveto AQ 3 2347 5916
Collelongo AQ 9 1233 7149
Villavallelonga AQ 9 919 8068
Morino AQ 9 1448 9516
Civita d'Antino AQ 10 979 10495
Pescosolido FR 11 1555 12050
Sora FR 12 26144 38194
Campoli Appennino FR 14 1725 39919
Broccostella FR 14 2741 42660
Castelliri FR 15 3454 46114
Civitella Roveto AQ 15 3268 49382
Isola del Liri FR 15 11715 61097
Trasacco AQ 16 6246 67343
Collepardo FR 16 968 68311
Veroli FR 17 20560 88871
Lecce nei Marsi AQ 18 1702 90573
Ortucchio AQ 18 1860 92433
Vico nel Lazio FR 18 2234 94667
Luco dei Marsi AQ 18 6079 100746
Canistro AQ 18 995 101741
Posta Fibreno FR 18 1139 102880
Arpino FR 19 7262 110142
Fontechiari FR 19 1303 111445
Guarcino FR 20 1623 113068
Gioia dei Marsi AQ 20 1989 115057
Alatri FR 20 28952 144009
Monte San Giovanni Campano FR 20 12929 156938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km S of L'Aquila (69753 inhabitants)
64 Km E of Tivoli (56533 inhabitants)
66 Km E of Velletri (53303 inhabitants)
66 Km NE of Latina (125985 inhabitants)
71 Km E of Guidonia Montecelio (88673 inhabitants)
79 Km E of Aprilia (73446 inhabitants)
79 Km SW of Chieti (51815 inhabitants)
87 Km E of Anzio (54211 inhabitants)
88 Km E of Pomezia (62966 inhabitants)
89 Km E of Roma (2864731 inhabitants)
91 Km SW of Pescara (121014 inhabitants)
92 Km SW of Montesilvano (53738 inhabitants)
95 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 0.7 2018-09-16
12:50:40
41.82 13.55 9 2018-09-16
13:03:50
Sala Sismica INGV-Roma 61008121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-16 12:50:40 ± 0.1
Latitude 41.82 ± 0.00
Longitude 13.55 ± 0.01
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61008121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 669
Semi-minor axis of confidence ellipse (meter) 185
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 234
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32915
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 61008121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-16 13:03:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2018-09-16T12:52:27.60 3.0 undecidable manual Sn -3.51 0
IV.SPS2.HHZ. 2018-09-16T12:52:21.92 3.0 undecidable manual Sg 5.87 0
IV.SBPO.HNZ. 2018-09-16T12:52:11.01 3.0 undecidable manual Sn -0.71 0
GU.TRAV.HHZ. 2018-09-16T12:52:08.63 3.0 positive manual Pg 17.32 0
NI.PALA.HHZ. 2018-09-16T12:51:52.07 3.0 negative manual Pg 11.28 0
IV.MILN.HNZ. 2018-09-16T12:51:44.49 3.0 negative manual Pn 3.04 0
IV.MAGA.HHZ. 2018-09-16T12:51:40.45 3.0 undecidable manual Pn 2.07 0
IV.CSNT.HHZ. 2018-09-16T12:51:34.56 3.0 undecidable manual Sn -0.05 0
IV.PIPA.HHZ. 2018-09-16T12:51:33.34 3.0 undecidable manual Pn 0.7 0
GU.GORR.HHZ. 2018-09-16T12:51:31.35 3.0 undecidable manual Pn -0.51 0
IV.CAVE.HHZ. 2018-09-16T12:51:26.13 3.0 negative manual Pn 0.66 0
IV.SLCN.HHZ. 2018-09-16T12:51:17.97 3.0 undecidable manual Pg 2.76 0
IV.OFFI.HHZ. 2018-09-16T12:51:14.91 3.0 undecidable manual S -2.95 0
IV.RIBO.EHZ.01 2018-09-16T12:51:03.33 3.0 positive manual Pn -0.15 0
IV.INTR.HHZ. 2018-09-16T12:50:53.15 0.1 undecidable manual S 53 0.3292 50 0.04 97
IV.INTR.HHZ. 2018-09-16T12:50:47.61 0.3 undecidable manual P 53 0.3292 50 -0.1 72
IV.POFI.HHZ. 2018-09-16T12:50:47.02 0.3 undecidable manual S 129 0.1556 116 0 76
IV.LRP.EHZ. 2018-09-16T12:50:47.57 0.3 undecidable manual S 171 0.17 114 0.05 75
IV.VVLD.HHZ. 2018-09-16T12:50:44.43 0.3 undecidable manual S 45 0.0773 135 -0.11 76
IV.POFI.HHZ. 2018-09-16T12:50:44.21 0.3 undecidable manual P 129 0.1556 116 0.02 76
IV.LRP.EHZ. 2018-09-16T12:50:44.39 0.3 undecidable manual P 171 0.17 114 -0.09 74
IV.VVLD.HHZ. 2018-09-16T12:50:42.90 0.1 undecidable manual P 45 0.0773 135 0.14 100
IV.LAV9.HHZ. 2018-09-16T12:50:32.56 3.0 negative manual P -2.81 0
IV.VIVA.HHZ. 2018-09-16T12:50:31.66 3.0 positive manual P -1.8 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHN. ML:0.9 0.0001145 0.42 AML other m 2018-09-16T12:50:45.77
IV.VVLD.HHE. ML:0.9 0.0001165 0.96 AML other m 2018-09-16T12:50:45.85
IV.POFI.HHE. ML:0.6 3.7E-5 1.22 AML other m 2018-09-16T12:50:47.28
IV.POFI.HHN. ML:0.4 2.21E-5 0.34 AML other m 2018-09-16T12:50:50.17
IV.INTR.HHN. ML:0.9 3.005E-5 0.64 AML other m 2018-09-16T12:50:55.98
IV.INTR.HHE. ML:0.7 2.245E-5 0.44 AML other m 2018-09-16T12:50:56.12
IV.SLCN.HHN. ML:2.2 2.975E-5 0.54 AML other m 2018-09-16T12:51:25.11
IV.SLCN.HHE. ML:2.5 6.575E-5 0.36 AML other m 2018-09-16T12:51:25.74
IV.PIPA.HHE. ML:2.6 2.275E-5 0.62 AML other m 2018-09-16T12:51:32.46
IV.PIPA.HHN. ML:2.5 2.01E-5 0.72 AML other m 2018-09-16T12:51:40.65
IV.SBPO.HNN. ML:5.3 0.00994 0.42 AML other m 2018-09-16T12:52:00.97
IV.SBPO.HNE. ML:4.6 0.002135 0.04 AML other m 2018-09-16T12:52:13.62
IV.MAGA.HHN. ML:3.2 5.175E-5 1.84 AML other m 2018-09-16T12:52:43.00
IV.MAGA.HHE. ML:3.3 6.29E-5 0.54 AML other m 2018-09-16T12:52:47.37
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