Earthquake with magnitude of ML 0.8 on date 06-10-2021 and time 22:04:00 (Italy) in region 5 km E Monte Cavallo (MC)

A magnitude ML 0.8 earthquake occured in region: 5 km E Monte Cavallo (MC), on

  • 06-10-2021 20:04:00 (UTC)
  • 06-10-2021 22:04:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.978, 13.064 at 12 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 6 1107 1252
Fiordimonte MC 7 202 1454
Ussita MC 7 444 1898
Pieve Torina MC 8 1458 3356
Pievebovigliana MC 10 866 4222
Fiastra MC 10 559 4781
Acquacanina MC 11 121 4902
Preci PG 11 724 5626
Castelsantangelo sul Nera MC 12 281 5907
Muccia MC 12 915 6822
Bolognola MC 13 142 6964
Serravalle di Chienti MC 14 1070 8034
Sellano PG 15 1079 9113
Camerino MC 18 6974 16087

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
57 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
96 Km S of Fano (60888 inhabitants)
100 Km NE of Viterbo (67173 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 0.8 2021-10-06
20:04:00
42.9777 13.0642 12 2021-10-06
20:17:29
Sala Sismica INGV-Roma 96299501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-06 20:04:00 ± 0.15
Latitude 42.9777 ± 0.0090
Longitude 13.0642 ± 0.0086
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96299501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 880
Semi-minor axis of confidence ellipse (meter) 458
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 880
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
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) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.05036
Epicentral distance of station farthest from the epicenter (degree) 0.30307
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 96299501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-06 20:17:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2021-10-06T20:04:10.94 0.6 undecidable manual S 342 0.2914 93 -0.68 41
IV.GUMA.HHZ. 2021-10-06T20:04:09.31 0.6 undecidable manual S 67 0.2158 96 -0.06 50
IV.MMO1.EHZ. 2021-10-06T20:04:08.76 0.6 undecidable manual S 112 0.2077 97 -0.38 47
IV.MML1.EHZ. 2021-10-06T20:04:07.34 0.6 undecidable manual S 334 0.1511 104 -0.16 49
IV.ASSB.HHZ. 2021-10-06T20:04:07.82 0.6 undecidable manual P 282 0.3031 93 0.69 41
IV.CSP1.EHZ. 2021-10-06T20:04:07.60 0.3 undecidable manual S 42 0.1538 104 0.04 76
IV.CESI.HHZ. 2021-10-06T20:04:06.48 0.1 undecidable manual S 283 0.1196 115 -0.14 100
IV.SNTG.HHZ. 2021-10-06T20:04:06.79 0.6 undecidable manual P 342 0.2914 93 -0.14 48
IV.CSP1.EHZ. 2021-10-06T20:04:05.02 0.3 undecidable manual P 42 0.1538 104 0.44 70
IV.GUMA.HHZ. 2021-10-06T20:04:05.75 0.1 undecidable manual P 67 0.2158 96 0.12 98
IV.NRCA.HHZ. 2021-10-06T20:04:05.44 1.0 undecidable manual P 166 0.1484 105 0.93 19
IV.FDMO.HHZ. 2021-10-06T20:04:05.16 0.3 undecidable manual S 16 0.0612 142 -0.1 76
IV.CESI.HHZ. 2021-10-06T20:04:04.28 0.3 undecidable manual P 283 0.1196 115 0.24 73
IT.MTCL.HGZ. 2021-10-06T20:04:04.94 0.3 undecidable manual S 289 0.0504 149 -0.13 76
IV.MML1.EHZ. 2021-10-06T20:04:04.60 0.6 undecidable manual P 334 0.1511 104 0.05 51
IV.MMO1.EHZ. 2021-10-06T20:04:04.99 0.1 undecidable manual P 112 0.2077 97 -0.5 92
IT.MTCL.HGZ. 2021-10-06T20:04:03.34 0.3 undecidable manual P 289 0.0504 149 0.2 75
IV.FDMO.HHZ. 2021-10-06T20:04:03.45 0.1 undecidable manual P 16 0.0612 142 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.2 0.00021738175 0.2304 AML other m 2021-10-06T20:04:05.28
IV.FDMO.HHN. ML:1 0.00014414465 0.1024 AML other m 2021-10-06T20:04:05.57
IV.CESI.HHE. ML:0.9 7.1691345E-5 0.128 AML other m 2021-10-06T20:04:07.03
IV.CESI.HHN. ML:1 8.913307E-5 0.1408 AML other m 2021-10-06T20:04:06.82
IV.MML1.EHE. ML:0.6 3.4660245E-5 0.1408 AML other m 2021-10-06T20:04:07.63
IV.MML1.EHN. ML:0.7 4.1589475E-5 0.0768 AML other m 2021-10-06T20:04:07.55
IV.MML1.HNE. ML:0.7 4.1141535E-5 0.1408 AML other m 2021-10-06T20:04:07.49
IV.MML1.HNN. ML:0.7 4.1726705E-5 0.0896 AML other m 2021-10-06T20:04:08.12
IV.CSP1.EHE. ML:1.1 9.68774935E-5 0.1408 AML other m 2021-10-06T20:04:08.19
IV.CSP1.EHN. ML:1.1 9.336255E-5 0.0768 AML other m 2021-10-06T20:04:08.31
IV.NRCA.HHE. ML:0.7 4.647755E-5 0.1408 AML other m 2021-10-06T20:04:09.26
IV.NRCA.HHN. ML:0.7 3.793659E-5 0.1152 AML other m 2021-10-06T20:04:09.39
IV.NRCA.HNE. ML:0.8 5.594036E-5 0.128 AML other m 2021-10-06T20:04:08.97
IV.NRCA.HNN. ML:1 7.485591E-5 0.1664 AML other m 2021-10-06T20:04:09.26
IV.SNTG.HHE. ML:0.4 1.0961953E-5 0.1152 AML other m 2021-10-06T20:04:11.88
IV.SNTG.HHN. ML:0.4 1.16888465E-5 0.1152 AML other m 2021-10-06T20:04:12.54
IV.ASSB.HHE. ML:0.6 1.667532E-5 0.0768 AML other m 2021-10-06T20:04:12.35
IV.ASSB.HHN. ML:0.6 1.5928172E-5 0.0768 AML other m 2021-10-06T20:04:12.95
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