ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.4 on date 19-03-2019 and time 05:09:56 (Italy) in region 8 km E Norcia (PG)

A magnitude ML 1.4 earthquake occured in region: 8 km E Norcia (PG), on

  • 19-03-2019 04:09:56 (UTC)
  • 19-03-2019 05:09:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.81, 13.19 at 12 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
Norcia PG 8 4957 4957
Arquata del Tronto AP 10 1178 6135
Castelsantangelo sul Nera MC 10 281 6416
Montegallo AP 13 523 6939
Accumoli RI 14 667 7606
Preci PG 14 724 8330
Montemonaco AP 15 604 8934
Ussita MC 16 444 9378
Visso MC 16 1107 10485
Cascia PG 17 3217 13702
Acquasanta Terme AP 19 2916 16618
Montefortino FM 20 1178 17796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
92 Km W of Pescara (121014 inhabitants)
94 Km S of Ancona (100861 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km E of Viterbo (67173 inhabitants)
99 Km NE of Tivoli (56533 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 1.4 2019-03-19
04:09:56
42.81 13.19 12 2019-03-19
04:47:06
Sala Sismica INGV-Roma 66673891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-19 04:09:56 ± 0.06
Latitude 42.81 ± 0.00
Longitude 13.19 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66673891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 46
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
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 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.35793
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 66673891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-19 04:47:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-03-19T04:10:10.10 0.3 undecidable manual S 121 0.3579 91 0.04 71
IV.RM33.EHZ. 2019-03-19T04:10:08.73 0.3 undecidable manual S 176 0.3013 91 0.36 68
IV.MF5.EHZ. 2019-03-19T04:10:08.58 0.3 undecidable manual S 48 0.2671 92 1.21 48
IV.CAMP.HHE. 2019-03-19T04:10:08.81 0.3 undecidable manual S 149 0.3184 91 -0.07 70
IV.CESI.HHZ. 2019-03-19T04:10:07.88 0.3 undecidable manual S 313 0.2851 91 -0.01 72
IV.LNSS.HHZ. 2019-03-19T04:10:06.54 0.3 undecidable manual S 208 0.2329 92 0.18 71
IV.GAVE.EHZ. 2019-03-19T04:10:06.98 0.3 undecidable manual S 242 0.2455 92 0.26 70
IV.FDMO.HHZ. 2019-03-19T04:10:06.43 0.3 undecidable manual S 342 0.2383 92 -0.09 72
IT.MTCL.HGE. 2019-03-19T04:10:05.95 0.3 undecidable manual S 323 0.2302 92 -0.32 68
IV.SMA1.EHZ. 2019-03-19T04:10:05.46 0.3 undecidable manual S 149 0.2095 93 -0.19 70
IV.T1299.EHE. 2019-03-19T04:10:05.31 0.3 undecidable manual S 158 0.188 93 0.27 70
IV.TERO.HHZ. 2019-03-19T04:10:04.36 0.1 undecidable manual P 121 0.3579 91 -0.18 91
IV.FEMA.HNE. 2019-03-19T04:10:04.70 0.3 undecidable manual S 327 0.1826 94 -0.18 71
IV.MF5.EHZ. 2019-03-19T04:10:03.21 0.1 undecidable manual P 48 0.2671 92 0.22 93
IV.CAMP.HHE. 2019-03-19T04:10:03.67 0.1 undecidable manual P 149 0.3184 91 -0.19 91
IV.MMO1.EHZ. 2019-03-19T04:10:03.36 0.1 undecidable manual S 49 0.1358 101 -0.13 97
IV.CESI.HHZ. 2019-03-19T04:10:03.22 0.1 undecidable manual P 313 0.2851 91 -0.07 95
IV.MTRA.EHZ. 2019-03-19T04:10:03.94 0.3 undecidable manual S 109 0.1619 95 -0.32 69
IV.RM33.EHZ. 2019-03-19T04:10:03.71 0.1 undecidable manual P 176 0.3013 91 0.15 94
IV.MC2.EHE. 2019-03-19T04:10:02.73 0.3 undecidable manual S 1 0.1016 117 0.19 71
IV.FDMO.HHZ. 2019-03-19T04:10:02.29 0.1 undecidable manual P 342 0.2383 92 -0.21 93
IV.LNSS.HHZ. 2019-03-19T04:10:02.40 0.1 undecidable manual P 208 0.2329 92 0 96
IV.GAVE.EHZ. 2019-03-19T04:10:02.59 0.1 undecidable manual P 242 0.2455 92 -0.02 96
IT.MTCL.HGE. 2019-03-19T04:10:02.21 0.1 undecidable manual P 323 0.2302 92 -0.14 94
IV.SMA1.EHZ. 2019-03-19T04:10:01.83 0.1 undecidable manual P 149 0.2095 93 -0.16 94
IV.T1299.EHE. 2019-03-19T04:10:01.71 0.1 undecidable manual P 158 0.188 93 0.07 98
IV.FEMA.HNE. 2019-03-19T04:10:01.52 0.3 undecidable manual P 327 0.1826 94 -0.03 73
IV.MTRA.EHZ. 2019-03-19T04:10:01.11 0.1 positive manual P 109 0.1619 95 -0.08 96
IV.NRCA.HNZ. 2019-03-19T04:10:01.49 0.1 undecidable manual S 294 0.0585 141 -0.06 100
IV.MMO1.EHZ. 2019-03-19T04:10:00.73 0.1 positive manual P 49 0.1358 101 -0.02 99
IV.MC2.EHE. 2019-03-19T04:10:00.38 0.1 undecidable manual P 1 0.1016 117 0.18 96
IV.NRCA.HNZ. 2019-03-19T04:09:59.76 0.1 negative manual P 294 0.0585 141 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.1 0.001865 0.22 AML other m 2019-03-19T04:10:01.62
IV.NRCA.HNE. ML:2.1 0.00182 0.2 AML other m 2019-03-19T04:10:01.63
IV.NRCA.HHN. ML:1.8 0.000986 0.9 AML other m 2019-03-19T04:10:02.10
IV.NRCA.HNN. ML:1.8 0.0008945 0.12 AML other m 2019-03-19T04:10:02.50
IV.MTRA.EHN. ML:1.4 0.0001965 0.28 AML other m 2019-03-19T04:10:04.57
IV.MTRA.EHE. ML:1.4 0.000186 0.5 AML other m 2019-03-19T04:10:04.73
IV.LNSS.HHE. ML:1.5 0.0001645 1.4 AML other m 2019-03-19T04:10:07.78
IV.LNSS.HHN. ML:1.5 0.000178 1.22 AML other m 2019-03-19T04:10:07.81
IV.GAVE.EHE. ML:1.5 0.000164 0.36 AML other m 2019-03-19T04:10:07.09
IV.GAVE.EHN. ML:1.4 0.0001305 0.24 AML other m 2019-03-19T04:10:07.83
IV.CESI.HHN. ML:1.4 0.0001012 1.16 AML other m 2019-03-19T04:10:08.75
IV.RM33.EHE. ML:1.2 7.49E-5 0.46 AML other m 2019-03-19T04:10:08.73
IV.CESI.HHE. ML:1.3 8.615E-5 0.48 AML other m 2019-03-19T04:10:08.80
IV.FDMO.HHN. ML:1 4.755E-5 0.68 AML other m 2019-03-19T04:10:10.09
IV.FDMO.HHE. ML:1.1 7.095E-5 0.42 AML other m 2019-03-19T04:10:10.15
IV.RM33.EHN. ML:1.2 6.565E-5 1.26 AML other m 2019-03-19T04:10:10.02
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