Earthquake with magnitude of ML 1.0 on date 19-09-2021 and time 20:20:28 (Italy) in region 5 km SE Monte Cavallo (MC)

A magnitude ML 1.0 earthquake occured in region: 5 km SE Monte Cavallo (MC), on

  • 19-09-2021 18:20:28 (UTC)
  • 19-09-2021 20:20:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.959, 13.036 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 5 145 145
Visso MC 5 1107 1252
Ussita MC 9 444 1696
Preci PG 9 724 2420
Pieve Torina MC 10 1458 3878
Fiordimonte MC 10 202 4080
Sellano PG 12 1079 5159
Castelsantangelo sul Nera MC 12 281 5440
Pievebovigliana MC 12 866 6306
Fiastra MC 13 559 6865
Muccia MC 14 915 7780
Acquacanina MC 14 121 7901
Serravalle di Chienti MC 14 1070 8971
Bolognola MC 16 142 9113
Cerreto di Spoleto PG 18 1075 10188
Norcia PG 19 4957 15145
Camerino MC 20 6974 22119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
98 Km S of Fano (60888 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Reviewed
Rev100
ML 1.0 2021-09-19
18:20:28
42.9592 13.036 11 2021-09-19
18:38:06
Sala Sismica INGV-Roma 95639901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-19 18:20:28 ± 0.1
Latitude 42.9592 ± 0.0045
Longitude 13.0360 ± 0.0074
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95639901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 708
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 15
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
Epicentral distance of station farthest from the epicenter (degree) 0.37322
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 95639901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-19 18:38:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CADC.EHZ. 2021-09-19T18:22:09.78 3.0 undecidable manual Sg 13.1 0
IV.TDS.HHZ. 2021-09-19T18:22:04.16 3.0 undecidable manual Sn -5.02 0
OT.CGL1.HHZ. 2021-09-19T18:22:02.73 3.0 undecidable manual Sn -7.76 0
IV.ZEN8.EHZ. 2021-09-19T18:21:59.49 3.0 undecidable manual Sg 4.46 0
IV.MILN.HNZ. 2021-09-19T18:21:34.26 3.0 undecidable manual Pg 12.56 0
IV.ZCCA.HNZ. 2021-09-19T18:21:27.49 3.0 undecidable manual Sg 1.19 0
IV.SARZ.HHZ. 2021-09-19T18:21:23.27 3.0 positive manual Pg 4.83 0
IV.PII.HHZ. 2021-09-19T18:21:20.00 3.0 undecidable manual Sn -2.04 0
IV.FVI.HHZ. 2021-09-19T18:21:15.48 3.0 undecidable manual Pn -7.6 0
IV.FIR.HHZ. 2021-09-19T18:21:13.53 3.0 undecidable manual Sg 0.96 0
IT.PLTA.HNZ. 2021-09-19T18:21:11.53 3.0 undecidable manual Sg -0.31 0
IT.FIE.HGZ. 2021-09-19T18:21:05.07 3.0 undecidable manual Sn -7.57 0
IV.PP3.EHZ. 2021-09-19T18:20:55.83 3.0 undecidable manual Sg 0.54 0
IV.VIVA.HHZ. 2021-09-19T18:20:54.19 3.0 undecidable manual Sg 0.34 0
IV.EL6.EHZ. 2021-09-19T18:20:42.50 0.3 undecidable manual S 7 0.3732 50 0.54 64
IV.SNTG.HNN. 2021-09-19T18:20:39.70 0.3 undecidable manual S 347 0.304 50 -0.2 70
IV.EL6.EHZ. 2021-09-19T18:20:36.10 0.1 undecidable manual P 7 0.3732 50 -0.12 93
IV.MML1.EHZ. 2021-09-19T18:20:35.40 0.3 undecidable manual S 343 0.161 121 -0.23 71
IV.RCAV.EHZ. 2021-09-19T18:20:35.97 3.0 undecidable manual P -3.22 0
IV.CESI.HHZ. 2021-09-19T18:20:34.00 0.3 undecidable manual S 295 0.1061 132 0.07 74
IV.NRCA.HHZ. 2021-09-19T18:20:34.60 0.3 undecidable manual S 155 0.1376 125 -0.28 71
IV.SNTG.HNN. 2021-09-19T18:20:34.78 0.3 undecidable manual P 347 0.304 50 -0.25 69
IV.MC2.EHZ. 2021-09-19T18:20:34.60 0.1 undecidable manual S 113 0.1214 129 0.22 96
IV.FDMO.HHZ. 2021-09-19T18:20:33.20 0.1 undecidable manual S 26 0.0863 138 -0.17 98
IV.CSP1.EHZ. 2021-09-19T18:20:32.95 3.0 undecidable manual P 0
IV.NRCA.HHZ. 2021-09-19T18:20:32.07 0.1 undecidable manual P 155 0.1376 125 -0.06 99
IV.MML1.EHZ. 2021-09-19T18:20:32.49 0.3 undecidable manual P 343 0.161 121 -0.08 74
IV.MC2.EHZ. 2021-09-19T18:20:31.83 0.1 undecidable manual P 113 0.1214 129 -0.02 100
IV.CESI.HHZ. 2021-09-19T18:20:31.81 0.1 undecidable manual P 295 0.1061 132 0.23 96
IV.FDMO.HHZ. 2021-09-19T18:20:31.34 0.1 undecidable manual P 26 0.0863 138 0.08 99
IT.MTCL.HGZ. 2021-09-19T18:20:30.97 0.1 undecidable manual P 322 0.0441 156 0.22 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.6 5.046767E-5 0.0896 AML other m 2021-09-19T18:20:33.58
IV.FDMO.HHE. ML:0.8 8.14E-5 0.14 AML other m 2021-09-19T18:20:33.49
IV.CESI.HHE. ML:0.7 5.242945E-5 0.1024 AML other m 2021-09-19T18:20:34.30
IV.CESI.HHN. ML:0.7 5.586255E-5 0.1536 AML other m 2021-09-19T18:20:34.43
IV.NRCA.HHN. ML:1.3 0.0001855 0.14 AML other m 2021-09-19T18:20:34.82
IV.NRCA.HHE. ML:1.3 0.000163 0.08 AML other m 2021-09-19T18:20:34.86
IV.NRCA.HNE. ML:1.2 0.0001599918 0.0768 AML other m 2021-09-19T18:20:34.86
IV.NRCA.HNN. ML:1.3 0.000184457625 1.1776 AML other m 2021-09-19T18:20:34.82
IV.MML1.EHE. ML:0.6 3.491013E-5 0.2048 AML other m 2021-09-19T18:20:35.68
IV.MML1.EHN. ML:0.7 4.1872505E-5 0.192 AML other m 2021-09-19T18:20:35.88
IV.CSP1.EHE. ML:1.1 9.41879485E-5 0.2304 AML other m 2021-09-19T18:20:36.74
IV.CSP1.EHN. ML:1.2 0.000109620435 0.3328 AML other m 2021-09-19T18:20:37.57
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download