Earthquake with magnitude of ML 1.1 on date 06-03-2021 and time 01:03:40 (Italy) in region 4 km NW Visso (MC)

A magnitude ML 1.1 earthquake occured in region: 4 km NW Visso (MC), on

  • 06-03-2021 00:03:40 (UTC)
  • 06-03-2021 01:03:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.96, 13.05 at 3 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
Visso MC 4 1107 1107
Monte Cavallo MC 6 145 1252
Ussita MC 7 444 1696
Preci PG 9 724 2420
Fiordimonte MC 9 202 2622
Pieve Torina MC 10 1458 4080
Castelsantangelo sul Nera MC 11 281 4361
Pievebovigliana MC 12 866 5227
Fiastra MC 12 559 5786
Acquacanina MC 13 121 5907
Sellano PG 13 1079 6986
Muccia MC 14 915 7901
Bolognola MC 15 142 8043
Serravalle di Chienti MC 15 1070 9113
Norcia PG 19 4957 14070
Cerreto di Spoleto PG 19 1075 15145
Camerino MC 20 6974 22119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
55 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
98 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
Reviewed
Rev100
ML 1.1 2021-03-06
00:03:40
42.96 13.05 3 2021-03-06
00:14:03
Sala Sismica INGV-Roma 87798851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-06 00:03:40 ± 0.07
Latitude 42.96 ± 0.00
Longitude 13.05 ± 0.00
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87798851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 309
Semi-minor axis of confidence ellipse (meter) 83
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 310
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.40919
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 87798851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-06 00:14:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FAGN.HHZ. 2021-03-06T00:03:55.01 3.0 undecidable manual P -0.66 0
IV.MF5.EHZ. 2021-03-06T00:03:52.84 0.6 undecidable manual S 85 0.2986 95 0.74 39
IV.GAVE.EHZ. 2021-03-06T00:03:51.82 0.6 undecidable manual S 204 0.2923 95 -0.04 47
IV.MNTT.EHZ. 2021-03-06T00:03:49.65 1.0 positive manual P 75 0.4092 93 -0.04 23
IV.MMO1.EHZ. 2021-03-06T00:03:48.59 0.6 undecidable manual S 107 0.2086 97 -0.09 48
IV.CSP1.EHZ. 2021-03-06T00:03:47.23 0.6 undecidable manual S 40 0.1718 98 -0.04 48
IV.MML1.HNZ. 2021-03-06T00:03:47.09 0.6 undecidable manual S 339 0.1646 98 0.1 48
IV.NRCA.HHZ. 2021-03-06T00:03:46.06 0.6 undecidable manual S 161 0.134 100 0.24 47
IV.MF5.EHZ. 2021-03-06T00:03:46.14 3.0 undecidable manual P 85 0.2986 95 -1.09 0
IV.GAVE.EHZ. 2021-03-06T00:03:46.71 1.0 positive manual P 204 0.2923 95 -0.38 22
IV.CESI.HHZ. 2021-03-06T00:03:45.54 0.6 undecidable manual S 292 0.1178 101 0.34 46
IV.MMO1.EHZ. 2021-03-06T00:03:44.94 0.6 negative manual P 107 0.2086 97 -0.31 45
IV.MML1.HNZ. 2021-03-06T00:03:44.03 1.0 undecidable manual P 339 0.1646 98 -0.25 23
IV.CSP1.EHZ. 2021-03-06T00:03:44.20 0.3 positive manual P 40 0.1718 98 -0.24 70
IV.FDMO.HHZ. 2021-03-06T00:03:43.86 0.6 undecidable manual S 18 0.08 107 0.05 49
IV.CESI.HHZ. 2021-03-06T00:03:43.29 0.1 positive manual P 292 0.1178 101 0.04 98
IV.NRCA.HHZ. 2021-03-06T00:03:43.58 0.1 negative manual P 161 0.134 100 -0.02 98
IV.MC2.EHZ. 2021-03-06T00:03:43.26 1.0 undecidable manual P 116 0.1106 102 0.17 24
IT.MTCL.HGZ. 2021-03-06T00:03:42.89 0.6 undecidable manual S 311 0.0522 115 0.11 49
IV.FDMO.HHZ. 2021-03-06T00:03:42.30 0.6 positive manual P 18 0.08 107 -0.14 48
IV.FEMA.HNZ. 2021-03-06T00:03:41.08 0.1 undecidable manual P 309 0.0036 172 -0.03 100
IT.MTCL.HGZ. 2021-03-06T00:03:41.77 0.1 undecidable manual P 311 0.0522 115 -0.08 98
IV.FEMA.HNZ. 2021-03-06T00:03:41.45 0.6 undecidable manual S 309 0.0036 172 -0.06 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0 0.0002395 1.8 AML other m 2021-03-06T00:03:44.02
IV.FDMO.HHE. ML:0 0.00025668815 0.14 AML other m 2021-03-06T00:03:44.16
IV.CESI.HHN. ML:1.2 0.000202 0.26 AML other m 2021-03-06T00:03:45.98
IV.CESI.HHE. ML:1 0.000119637605 0.24 AML other m 2021-03-06T00:03:46.10
IV.CESI.HNN. ML:1.2 0.000190879 0.23 AML other m 2021-03-06T00:03:45.98
IV.NRCA.HHE. ML:0.9 9.4215725E-5 0.18 AML other m 2021-03-06T00:03:47.65
IV.NRCA.HHN. ML:0.8 8.249896E-5 0.22 AML other m 2021-03-06T00:03:48.55
IV.CSP1.EHE. ML:1.1 0.00011728245 0.32 AML other m 2021-03-06T00:03:49.10
IV.CSP1.EHN. ML:1.3 0.0001865 0.76 AML other m 2021-03-06T00:03:49.61
IV.MF5.EHE. ML:1.2 6.5885975E-5 0.4 AML other m 2021-03-06T00:03:53.24
IV.GAVE.EHE. ML:1.1 5.825E-5 0.26 AML other m 2021-03-06T00:03:53.25
IV.GAVE.EHN. ML:1 4.695E-5 0.28 AML other m 2021-03-06T00:03:53.80
IV.MF5.EHN. ML:1 4.60924445E-5 0.52 AML other m 2021-03-06T00:03:54.68
IV.EL6.EHN. ML:0 3.485E-5 0.44 AML other m 2021-03-06T00:03:56.66
IV.FAGN.HHE. ML:0 3.0641735E-5 0.06 AML other m 2021-03-06T00:04:04.82
IV.FAGN.HHN. ML:0 2.040564E-5 0.06 AML other m 2021-03-06T00:04:04.85
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