Earthquake with magnitude of ML 1.3 on date 10-04-2019 and time 15:41:43 (Italy) in region 1 km E Grotte di Castro (VT)

A magnitude ML 1.3 earthquake occured in region: 1 km E Grotte di Castro (VT), on

  • 10-04-2019 13:41:43 (UTC)
  • 10-04-2019 15:41:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.68, 11.88 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
Grotte di Castro VT 1 2683 2683
San Lorenzo Nuovo VT 3 2091 4774
Gradoli VT 4 1353 6127
Onano VT 6 995 7122
Latera VT 7 836 7958
Acquapendente VT 8 5506 13464
Castel Giorgio TR 9 2131 15595
Bolsena VT 10 3991 19586
Proceno VT 10 557 20143
Valentano VT 13 2868 23011
Sorano GR 14 3428 26439
Castel Viscardo TR 14 2938 29377
Capodimonte VT 14 1731 31108
Marta VT 16 3499 34607
Allerona TR 17 1794 36401
Ischia di Castro VT 18 2326 38727
Pitigliano GR 18 3818 42545
Piansano VT 18 2079 44624
Porano TR 18 1966 46590
Castell'Azzara GR 19 1476 48066
Farnese VT 19 1527 49593
Bagnoregio VT 19 3650 53243
Lubriano VT 19 909 54152
Orvieto TR 19 20630 74782
Montefiascone VT 20 13432 88214

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Viterbo (67173 inhabitants)
63 Km E of Grosseto (82087 inhabitants)
64 Km SW of Perugia (166134 inhabitants)
64 Km W of Terni (111501 inhabitants)
65 Km N of Civitavecchia (52991 inhabitants)
74 Km W of Foligno (57155 inhabitants)
84 Km SE of Siena (53903 inhabitants)
88 Km S of Arezzo (99543 inhabitants)
100 Km NW of Roma (2864731 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 1.3 2019-04-10
13:41:43
42.67 11.88 10 2019-04-10
13:52:51
Sala Sismica INGV-Roma 67434881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-10 13:41:43 ± 0.1
Latitude 42.67 ± 0.00
Longitude 11.88 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 67434881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 616
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 141
Circular confidence region, given by single value of horizontal uncertainty (meter) 620
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29318
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 3
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 67434881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-10 13:52:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MIGL.HHZ. 2019-04-10T13:43:32.20 3.0 undecidable manual Sg 19.48 0
OT.TAR1.HHZ. 2019-04-10T13:43:32.01 3.0 undecidable manual Sn 4.44 0
IV.SALB.HHZ. 2019-04-10T13:43:25.66 3.0 undecidable manual Sn 4.94 0
OX.SABO.HHZ. 2019-04-10T13:43:15.20 3.0 undecidable manual Sn -1.19 0
IV.ZONE.HHZ. 2019-04-10T13:43:10.60 3.0 undecidable manual Sn -1.68 0
MN.TRI.HHZ. 2019-04-10T13:43:10.36 3.0 undecidable manual Sn -0.44 0
GU.RSP.HHZ. 2019-04-10T13:42:39.72 3.0 undecidable manual Pn 0.95 0
IV.MTGR.HHZ. 2019-04-10T13:42:36.85 3.0 undecidable manual Pn -1.26 0
IT.VNF1.HGZ. 2019-04-10T13:42:24.40 3.0 undecidable manual Sn -0.19 0
IV.VITU.HHZ. 2019-04-10T13:42:11.45 3.0 undecidable manual Pn 2.32 0
IV.LPEL.HHZ. 2019-04-10T13:42:00.79 3.0 negative manual Pn -0.32 0
IV.ATCC.EHZ. 2019-04-10T13:41:54.67 3.0 negative manual P 1.42 0
IV.MGAB.HHZ. 2019-04-10T13:41:54.77 0.3 undecidable manual S 36 0.2932 50 0.1 71
TV.SF04.EHZ. 2019-04-10T13:41:52.59 0.3 undecidable manual S 315 0.2275 112 -0.11 72
IV.MGAB.HHZ. 2019-04-10T13:41:49.68 0.3 negative manual P 36 0.2932 50 -0.17 70
IV.LATE.HHZ. 2019-04-10T13:41:48.00 0.1 undecidable manual S 222 0.0818 138 0.02 100
TV.SF04.EHZ. 2019-04-10T13:41:48.86 0.1 undecidable manual P 315 0.2275 112 0.14 95
IV.LATE.HHZ. 2019-04-10T13:41:45.96 0.1 positive manual P 222 0.0818 138 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LATE.HHE. ML:1.3 0.0002535 1 AML other m 2019-04-10T13:41:49.61
IV.LATE.HHN. ML:1.4 0.0003475 0.34 AML other m 2019-04-10T13:41:49.68
IV.MGAB.HHE. ML:1 4.51E-5 0.34 AML other m 2019-04-10T13:41:55.27
IV.MGAB.HHN. ML:1 4.31E-5 0.52 AML other m 2019-04-10T13:41:55.65
IV.ATCC.EHN. ML:1.6 5.12E-5 0.06 AML other m 2019-04-10T13:42:07.44
IV.ATCC.EHE. ML:1.4 3.71E-5 0.06 AML other m 2019-04-10T13:42:11.22
GU.RSP.HHE. ML:3 3.515E-5 0.52 AML other m 2019-04-10T13:42:58.50
GU.RSP.HHN. ML:2.8 2.5E-5 0.56 AML other m 2019-04-10T13:43:08.12
MN.TRI.HHN. ML:4.1 0.00102 0.44 AML other m 2019-04-10T13:43:12.10
MN.TRI.HHE. ML:4.2 0.001115 0.68 AML other m 2019-04-10T13:43:12.04
OX.SABO.HHN. ML:3.6 0.0002145 0.42 AML other m 2019-04-10T13:43:27.09
OX.SABO.HNN. ML:4.1 0.000757 0.42 AML other m 2019-04-10T13:43:27.10
OX.SABO.HNE. ML:4.3 0.00127 1.18 AML other m 2019-04-10T13:43:27.09
OX.SABO.HHE. ML:3.7 0.000298 1.2 AML other m 2019-04-10T13:43:27.08
IV.ZONE.HHN. ML:2.9 5.925E-5 0.76 AML other m 2019-04-10T13:43:36.82
IV.ZONE.HHE. ML:2.9 6.05E-5 1.18 AML other m 2019-04-10T13:43:37.08
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
Waveforms Seismic signals in full SEED format Download