ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.0 on date 20-03-2019 and time 08:07:41 (UTC) in region 6 km S Monte Cavallo (MC)

A magnitude ML 1.0 earthquake occured in region: 6 km S Monte Cavallo (MC), on

  • 20-03-2019 08:07:41 (UTC)
  • 20-03-2019 09:07:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.94, 13.02 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
Monte Cavallo MC 6 145 145
Visso MC 6 1107 1252
Preci PG 7 724 1976
Sellano PG 9 1079 3055
Ussita MC 10 444 3499
Pieve Torina MC 12 1458 4957
Fiordimonte MC 12 202 5159
Castelsantangelo sul Nera MC 12 281 5440
Pievebovigliana MC 14 866 6306
Serravalle di Chienti MC 15 1070 7376
Fiastra MC 15 559 7935
Muccia MC 16 915 8850
Cerreto di Spoleto PG 16 1075 9925
Acquacanina MC 16 121 10046
Norcia PG 18 4957 15003
Bolognola MC 18 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
100 Km S of Fano (60888 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
08:07:41
42.94 13.02 11 2019-03-20
08:21:45
Sala Sismica INGV-Roma 66709431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 08:07:41 ± 0.05
Latitude 42.94 ± 0.00
Longitude 13.02 ± 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 66709431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 279
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2671
Number of stations at which the event was observed 29
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 4
Type of magnitude ML
Reference to an origin 66709431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-20 08:21:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CLTA.HHZ. 2019-03-20T08:09:02.56 3.0 negative manual Pn 1.87 0
IT.VRB.HGZ. 2019-03-20T08:09:02.71 3.0 undecidable manual Sn -0.24 0
IV.CRJA.HHZ. 2019-03-20T08:09:01.91 3.0 negative manual Pg 11.19 0
IT.VNF1.HGZ. 2019-03-20T08:08:49.00 3.0 undecidable manual Sg 12.77 0
IV.EUCT.HNZ. 2019-03-20T08:08:45.36 3.0 undecidable manual Sn 0.29 0
IV.VIVA.HHZ. 2019-03-20T08:08:24.52 3.0 undecidable manual Sg 1.2 0
IV.ACER.HHZ. 2019-03-20T08:08:22.31 3.0 negative manual Pn -1.81 0
IV.NDIM.HNZ. 2019-03-20T08:08:19.52 3.0 undecidable manual Sn 0.75 0
IV.AGLI.HHZ. 2019-03-20T08:08:19.04 3.0 undecidable manual Pn 0.3 0
GU.CARD.HHZ. 2019-03-20T08:08:15.49 3.0 undecidable manual Sg 1.33 0
IV.CTI.HHZ. 2019-03-20T08:08:15.93 3.0 undecidable manual Pg 9.86 0
IV.BRMO.HHZ. 2019-03-20T08:08:13.83 3.0 undecidable manual Pn -1.59 0
GU.RNCA.HHZ. 2019-03-20T08:08:13.48 3.0 undecidable manual Pg 5.53 0
MN.TRI.HHZ. 2019-03-20T08:08:09.21 3.0 negative manual Pn 5.55 0
IV.EUCT.HNZ. 2019-03-20T08:08:09.76 3.0 positive manual Pn -0.76 0
IT.PLTA.HNZ. 2019-03-20T08:08:05.84 3.0 positive manual Pn 0.19 0
IV.SEI.HHZ. 2019-03-20T08:08:03.30 3.0 undecidable manual Sn 0.07 0
IV.APEC.HHZ. 2019-03-20T08:07:53.90 3.0 undecidable manual Sn -1.01 0
IV.GAVE.EHE. 2019-03-20T08:07:52.08 0.6 undecidable manual S 200 0.2671 91 -0.05 47
IV.MMO1.EHE. 2019-03-20T08:07:51.11 0.6 undecidable manual S 101 0.2302 91 0.05 49
IV.CSP1.EHZ. 2019-03-20T08:07:50.29 0.6 undecidable manual S 43 0.2023 91 0.09 49
IV.MML1.EHE. 2019-03-20T08:07:49.05 0.3 undecidable manual S 349 0.1736 92 -0.31 69
IV.MC2.EHZ. 2019-03-20T08:07:48.32 0.6 undecidable manual S 104 0.1295 97 0.26 47
IV.IMOL.HNZ. 2019-03-20T08:07:48.41 3.0 negative manual Pn 1.33 0
IV.NRCA.HHE. 2019-03-20T08:07:47.72 0.6 undecidable manual S 147 0.1304 97 -0.37 46
IV.MMO1.EHE. 2019-03-20T08:07:47.12 0.1 undecidable manual P 101 0.2302 91 -0.01 98
IV.FDMO.HHZ. 2019-03-20T08:07:47.13 0.6 undecidable manual S 29 0.1061 111 -0.26 48
IV.GAVE.EHE. 2019-03-20T08:07:47.75 0.1 undecidable manual P 200 0.2671 91 0 96
IV.CESI.HHZ. 2019-03-20T08:07:47.29 0.6 undecidable manual S 307 0.1025 113 -0.01 50
IV.TRIF.CHZ. 2019-03-20T08:07:47.01 3.0 negative manual Pn -3.35 0
IV.CSP1.EHZ. 2019-03-20T08:07:46.64 0.3 positive manual P 43 0.2023 91 0 74
IV.MML1.EHE. 2019-03-20T08:07:46.11 0.1 undecidable manual P 349 0.1736 92 -0.04 98
IV.FEMA.HNE. 2019-03-20T08:07:45.73 0.6 undecidable manual S 52 0.0306 158 -0.09 51
IV.CESI.HHZ. 2019-03-20T08:07:45.19 0.1 negative manual P 307 0.1025 113 0.23 97
IV.MC2.EHZ. 2019-03-20T08:07:45.43 0.1 undecidable manual P 104 0.1295 97 0.03 100
IV.NRCA.HHE. 2019-03-20T08:07:45.36 0.1 undecidable manual P 147 0.1304 97 -0.06 99
IV.FDMO.HHZ. 2019-03-20T08:07:45.10 0.1 undecidable manual P 29 0.1061 111 0.09 99
IV.FEMA.HNE. 2019-03-20T08:07:44.25 0.1 undecidable manual P 52 0.0306 158 0.14 99
IV.SFI.EHZ. 2019-03-20T08:07:43.80 3.0 positive manual P -0.19 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.9 8.21E-5 0.22 AML other m 2019-03-20T08:07:47.33
IV.CESI.HHE. ML:1.1 0.0001229 0.18 AML other m 2019-03-20T08:07:47.45
IV.CESI.HHN. ML:1.2 0.0001825 0.38 AML other m 2019-03-20T08:07:47.65
IV.FDMO.HHE. ML:0.8 7.255E-5 0.7 AML other m 2019-03-20T08:07:48.57
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