Earthquake with magnitude of ML 1.0 on date 20-03-2019 and time 20:05:00 (Italy) in region 2 km E Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 2 km E Norcia (PG), on

  • 20-03-2019 19:05:00 (UTC)
  • 20-03-2019 20:05:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.12 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
Norcia PG 2 4957 4957
Cascia PG 12 3217 8174
Preci PG 12 724 8898
Castelsantangelo sul Nera MC 12 281 9179
Arquata del Tronto AP 15 1178 10357
Accumoli RI 15 667 11024
Visso MC 16 1107 12131
Cerreto di Spoleto PG 17 1075 13206
Poggiodomo PG 17 117 13323
Ussita MC 18 444 13767
Montegallo AP 19 523 14290
Cittareale RI 19 482 14772
Sellano PG 19 1079 15851

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
99 Km NW of Chieti (51815 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 2019-03-20
19:05:00
42.79 13.12 11 2019-03-20
19:30:08
Sala Sismica INGV-Roma 66732731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 19:05:00 ± 0.04
Latitude 42.79 ± 0.00
Longitude 13.12 ± 0.00
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 66732731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 51
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 213
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.3921
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 66732731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-20 19:30:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-03-20T19:05:14.70 0.1 undecidable manual S 115 0.3921 91 0.05 96
IV.CSP1.EHZ. 2019-03-20T19:05:12.32 0.1 undecidable manual S 12 0.3094 91 0.13 95
IV.FDMO.HHZ. 2019-03-20T19:05:10.11 0.1 undecidable manual S 355 0.2491 91 -0.28 94
IV.CESI.HHZ. 2019-03-20T19:05:10.93 0.1 undecidable manual S 324 0.2671 91 -0.01 98
IV.MTRA.EHZ. 2019-03-20T19:05:09.03 0.3 undecidable manual S 99 0.2059 92 -0.09 73
IV.GAVE.EHZ. 2019-03-20T19:05:08.81 0.1 undecidable manual S 240 0.1916 92 0.12 96
IV.TERO.HHZ. 2019-03-20T19:05:08.67 0.6 negative manual P 115 0.3921 91 -0.03 48
IV.MMO1.EHZ. 2019-03-20T19:05:08.69 0.1 undecidable manual S 54 0.188 93 0.09 98
IV.LNSS.HHZ. 2019-03-20T19:05:08.64 0.3 undecidable manual S 197 0.1943 92 -0.14 73
IV.CSP1.EHZ. 2019-03-20T19:05:07.29 1.0 positive manual P 12 0.3094 91 0.01 24
IV.FDMO.HHZ. 2019-03-20T19:05:06.18 0.6 negative manual P 355 0.2491 91 -0.06 49
IV.CESI.HHZ. 2019-03-20T19:05:06.62 1.0 negative manual P 324 0.2671 91 0.06 24
IV.LNSS.HHZ. 2019-03-20T19:05:05.29 0.6 negative manual P 197 0.1943 92 -0.02 50
IV.MTRA.EHZ. 2019-03-20T19:05:05.44 1.0 negative manual P 99 0.2059 92 -0.06 24
IV.GAVE.EHZ. 2019-03-20T19:05:05.22 0.6 undecidable manual P 240 0.1916 92 -0.04 50
IV.MMO1.EHZ. 2019-03-20T19:05:05.22 0.6 undecidable manual P 54 0.188 93 0.02 50
IV.NRCA.HHZ. 2019-03-20T19:05:04.77 0.3 undecidable manual S 355 0.045 149 -0.08 75
IV.NRCA.HHZ. 2019-03-20T19:05:03.17 0.1 negative manual P 355 0.045 149 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.00029378005 0.1408 AML other m 2019-03-20T19:05:04.88
IV.NRCA.HHN. ML:1.1 0.00019001295 0.0768 AML other m 2019-03-20T19:05:04.85
IV.NRCA.HNE. ML:1.3 0.000270468 0.128 AML other m 2019-03-20T19:05:04.81
IV.NRCA.HNN. ML:1.1 0.00019010425 0.0768 AML other m 2019-03-20T19:05:04.85
IV.GAVE.EHE. ML:1 5.9462195E-5 0.1536 AML other m 2019-03-20T19:05:09.15
IV.GAVE.EHN. ML:0.9 5.550849E-5 0.2048 AML other m 2019-03-20T19:05:09.45
IV.GAVE.HNE. ML:1.2 0.00011441904 0.4992 AML other m 2019-03-20T19:05:10.99
IV.LNSS.HHE. ML:1 7.4815905E-5 0.128 AML other m 2019-03-20T19:05:09.57
IV.LNSS.HHN. ML:0.9 5.6415475E-5 0.1408 AML other m 2019-03-20T19:05:09.44
IV.LNSS.HNE. ML:1.2 0.00010455568 0.6528 AML other m 2019-03-20T19:05:17.05
IV.LNSS.HNN. ML:1.3 0.000118247444 0.7296 AML other m 2019-03-20T19:05:05.63
IV.MTRA.EHE. ML:0.8 3.3899325E-5 1.1392 AML other m 2019-03-20T19:05:04.56
IV.MTRA.EHN. ML:0.6 2.25120125E-5 0.1664 AML other m 2019-03-20T19:05:10.89
IV.MTRA.HNE. ML:0.9 5.6022135E-5 1.024 AML other m 2019-03-20T19:05:10.39
IV.MTRA.HNN. ML:0.9 5.0939412E-5 1.1392 AML other m 2019-03-20T19:05:09.93
IV.FDMO.HHE. ML:0.6 1.953454E-5 0.2944 AML other m 2019-03-20T19:05:11.07
IV.FDMO.HHN. ML:0.7 2.37777985E-5 0.2176 AML other m 2019-03-20T19:05:10.37
IV.CESI.HHE. ML:0.7 2.5065115E-5 0.2048 AML other m 2019-03-20T19:05:11.18
IV.CESI.HHN. ML:1 4.3283105E-5 0.1408 AML other m 2019-03-20T19:05:11.18
IV.CSP1.EHN. ML:0.8 2.37792975E-5 1.216 AML other m 2019-03-20T19:05:13.13
IV.TERO.HHE. ML:0.7 1.255596E-5 0.3968 AML other m 2019-03-20T19:05:15.11
IV.TERO.HHN. ML:0.5 1.17040525E-5 0.1024 AML other m 2019-03-20T19:05:15.51
IV.TERO.HNE. ML:1.1 3.516389E-5 0.4224 AML other m 2019-03-20T19:05:15.12
IV.TERO.HNN. ML:1.2 4.3584775E-5 0.4352 AML other m 2019-03-20T19:05:15.46
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