ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.3 on date 20-03-2019 and time 20:08:51 (Italy) in region 6 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.3 earthquake occured in region: 6 km SE Castelsantangelo sul Nera (MC), on

  • 20-03-2019 19:08:51 (UTC)
  • 20-03-2019 20:08:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.2 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
Castelsantangelo sul Nera MC 6 281 281
Ussita MC 11 444 725
Montegallo AP 11 523 1248
Montemonaco AP 11 604 1852
Norcia PG 12 4957 6809
Arquata del Tronto AP 12 1178 7987
Visso MC 12 1107 9094
Preci PG 14 724 9818
Montefortino FM 15 1178 10996
Bolognola MC 15 142 11138
Amandola FM 18 3629 14767
Accumoli RI 19 667 15434
Acquacanina MC 19 121 15555
Acquasanta Terme AP 20 2916 18471
Fiastra MC 20 559 19030

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
94 Km W of Pescara (121014 inhabitants)
97 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 1.3 2019-03-20
19:08:51
42.86 13.2 11 2019-03-20
19:33:10
Sala Sismica INGV-Roma 66732891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 19:08:51 ± 0.06
Latitude 42.86 ± 0.00
Longitude 13.20 ± 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 66732891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 328
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
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 33
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37682
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 66732891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-20 19:33:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2019-03-20T19:10:27.73 3.0 undecidable manual Pg 18.280001 0
IV.GENL.EHZ. 2019-03-20T19:10:23.02 3.0 undecidable manual Sg 10.76 0
IV.GMB.BHZ. 2019-03-20T19:10:11.84 3.0 undecidable manual Pg 10.5 0
IV.MNTV.HNZ. 2019-03-20T19:10:05.82 3.0 undecidable manual Sg 1.98 0
MN.TRI.HHZ. 2019-03-20T19:10:05.67 3.0 undecidable manual Sn -7.52 0
IV.MTGR.HHZ. 2019-03-20T19:10:03.86 3.0 negative manual Pg 7.7 0
IV.PAOL.HHZ. 2019-03-20T19:09:53.22 3.0 undecidable manual Sn 2 0
GU.GSCL.HHZ. 2019-03-20T19:09:49.12 3.0 undecidable manual Sn -0.52 0
IV.CDRU.HHZ. 2019-03-20T19:09:34.85 3.0 undecidable manual Pn 2.95 0
IV.LRP.EHZ. 2019-03-20T19:09:08.42 3.0 undecidable manual P 0.16 0
IV.BRSN.HNZ. 2019-03-20T19:09:08.97 3.0 positive manual P -3.77 0
IV.TERO.HHZ. 2019-03-20T19:09:05.30 0.3 undecidable manual S 129 0.3768 50 0.06 72
IV.LNSS.HHZ. 2019-03-20T19:09:02.70 0.3 undecidable manual S 205 0.2833 50 0.24 71
IV.MF5.EHZ. 2019-03-20T19:09:01.45 0.6 undecidable manual S 56 0.2266 50 0.68 42
IV.CESI.HHZ. 2019-03-20T19:09:01.84 1.0 undecidable manual S 304 0.2626 50 0 25
IV.CSP1.EHZ. 2019-03-20T19:09:00.80 0.6 undecidable manual S 0 0.232 50 -0.13 49
IV.FDMO.HHZ. 2019-03-20T19:08:59.53 0.3 undecidable manual S 334 0.1961 50 -0.34 71
IV.TERO.HHZ. 2019-03-20T19:08:59.34 1.0 undecidable manual P 129 0.3768 50 -0.1 24
IV.MTRA.EHZ. 2019-03-20T19:08:58.88 0.3 undecidable manual S 126 0.1745 119 -0.35 71
IV.MF5.EHZ. 2019-03-20T19:08:57.11 1.0 negative manual P 56 0.2266 50 0.24 24
IV.CESI.HHZ. 2019-03-20T19:08:57.46 0.1 undecidable manual P 304 0.2626 50 -0.02 100
IV.LNSS.HHZ. 2019-03-20T19:08:57.76 0.1 undecidable manual P 205 0.2833 50 -0.08 98
IV.SMA1.EHZ. 2019-03-20T19:08:57.26 0.1 undecidable manual P 157 0.2491 50 0.01 100
IV.MMO1.EHZ. 2019-03-20T19:08:56.64 0.6 undecidable manual S 66 0.098 135 -0.21 49
IV.MC2.EHZ. 2019-03-20T19:08:56.04 0.3 undecidable manual S 348 0.0531 152 0.26 74
IV.FDMO.HHZ. 2019-03-20T19:08:56.17 0.3 negative manual P 334 0.1961 50 -0.17 73
IV.NRCA.HHZ. 2019-03-20T19:08:56.14 0.6 undecidable manual S 248 0.071 144 -0.02 52
IV.CSP1.EHZ. 2019-03-20T19:08:56.87 1.0 negative manual P 0 0.232 50 -0.09 25
IV.MTRA.EHZ. 2019-03-20T19:08:55.91 0.6 negative manual P 126 0.1745 119 -0.07 50
IV.NRCA.HHZ. 2019-03-20T19:08:54.29 1.0 undecidable manual P 248 0.071 144 0.09 25
IV.MMO1.EHZ. 2019-03-20T19:08:54.53 1.0 undecidable manual P 66 0.098 135 -0.07 25
IV.MC2.EHZ. 2019-03-20T19:08:54.24 0.3 undecidable manual P 348 0.0531 152 0.26 74
IV.MOMA.HHZ. 2019-03-20T19:08:43.19 3.0 negative manual P -2.22 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.2 0.002265 0.1 AML other m 2019-03-20T19:08:56.28
IV.NRCA.HHN. ML:1.9 0.0011435 0.14 AML other m 2019-03-20T19:08:56.33
IV.MTRA.EHN. ML:1.2 0.000119 0.72 AML other m 2019-03-20T19:08:59.84
IV.FDMO.HHN. ML:0.9 5.415E-5 0.74 AML other m 2019-03-20T19:08:59.24
IV.FDMO.HHE. ML:1 6.975E-5 1.2 AML other m 2019-03-20T19:08:59.79
IV.MTRA.EHE. ML:1.2 0.000112 1.76 AML other m 2019-03-20T19:08:59.88
IV.CESI.HHE. ML:1.4 0.0001255 0.34 AML other m 2019-03-20T19:09:02.00
IV.CESI.HHN. ML:1.4 0.0001315 0.2 AML other m 2019-03-20T19:09:02.32
IV.LNSS.HHN. ML:1.1 5.27E-5 0.56 AML other m 2019-03-20T19:09:03.50
IV.LNSS.HHE. ML:1.2 6.705E-5 1.16 AML other m 2019-03-20T19:09:03.41
IV.MNTV.HNE. ML:4 0.00106 0.24 AML other m 2019-03-20T19:10:06.68
IV.MNTV.HNN. ML:4.1 0.00143 1.02 AML other m 2019-03-20T19:10:07.16
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