Earthquake with magnitude of ML 1.2 on date 07-10-2021 and time 18:58:58 (Italy) in region 4 km E Monte Cavallo (MC)

A magnitude ML 1.2 earthquake occured in region: 4 km E Monte Cavallo (MC), on

  • 07-10-2021 16:58:58 (UTC)
  • 07-10-2021 18:58:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.988, 13.049 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 4 145 145
Pieve Torina MC 6 1458 1603
Fiordimonte MC 7 202 1805
Visso MC 7 1107 2912
Ussita MC 9 444 3356
Pievebovigliana MC 9 866 4222
Fiastra MC 10 559 4781
Muccia MC 11 915 5696
Acquacanina MC 11 121 5817
Preci PG 12 724 6541
Serravalle di Chienti MC 12 1070 7611
Castelsantangelo sul Nera MC 13 281 7892
Bolognola MC 15 142 8034
Sellano PG 15 1079 9113
Camerino MC 17 6974 16087
Sefro MC 19 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
55 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
65 Km NW of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
95 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 1.2 2021-10-07
16:58:58
42.9878 13.0487 11 2021-10-07
17:06:30
Sala Sismica INGV-Roma 96325731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-07 16:58:58 ± 0.03
Latitude 42.9878 ± 0.0018
Longitude 13.0487 ± 0.0025
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96325731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 280
Semi-minor axis of confidence ellipse (meter) 190
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.29048
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:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 96325731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-07 17:06:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-10-07T16:59:09.38 0.6 undecidable manual S 281 0.2905 90 -0.08 48
IV.MMO1.EHZ. 2021-10-07T16:59:07.36 0.3 undecidable manual S 113 0.2221 90 -0.08 72
IV.PF6.EHZ. 2021-10-07T16:59:06.22 0.3 undecidable manual S 35 0.1835 90 -0.09 72
IV.CSP1.EHZ. 2021-10-07T16:59:05.47 0.3 undecidable manual S 48 0.1547 90 0.03 74
IV.NRCA.HHZ. 2021-10-07T16:59:05.44 0.3 undecidable manual S 163 0.1619 90 -0.21 71
IV.MML1.EHZ. 2021-10-07T16:59:04.81 0.3 undecidable manual S 336 0.1376 90 -0.13 73
IV.ASSB.HHZ. 2021-10-07T16:59:04.72 0.3 undecidable manual P 281 0.2905 90 -0.07 71
IV.CESI.HHZ. 2021-10-07T16:59:04.04 0.3 undecidable manual S 279 0.107 109 0 75
IV.MMO1.EHZ. 2021-10-07T16:59:03.74 0.3 undecidable manual P 113 0.2221 90 0.12 72
IT.MTCL.HGZ. 2021-10-07T16:59:02.25 0.3 undecidable manual S 280 0.0369 153 -0.25 72
IV.MML1.EHZ. 2021-10-07T16:59:02.22 0.1 undecidable manual P 336 0.1376 90 0.04 98
IV.FDMO.HHZ. 2021-10-07T16:59:02.63 0.3 undecidable manual S 30 0.0567 140 -0.19 73
IV.FEMA.HNZ. 2021-10-07T16:59:02.49 0.3 undecidable manual S 178 0.0261 161 0.11 74
IV.CSP1.EHZ. 2021-10-07T16:59:02.52 0.1 undecidable manual P 48 0.1547 90 0.05 98
IV.PF6.EHZ. 2021-10-07T16:59:02.95 0.3 undecidable manual P 35 0.1835 90 -0.02 73
IV.NRCA.HHZ. 2021-10-07T16:59:02.55 0.1 undecidable manual P 163 0.1619 90 -0.04 98
IV.CESI.HHZ. 2021-10-07T16:59:01.80 0.1 undecidable manual P 279 0.107 109 0.14 97
IV.FDMO.HHZ. 2021-10-07T16:59:01.09 0.1 undecidable manual P 30 0.0567 140 0.14 98
IT.MTCL.HGZ. 2021-10-07T16:59:00.83 0.1 undecidable manual P 280 0.0369 153 0.06 100
IV.FEMA.HNZ. 2021-10-07T16:59:00.92 0.3 undecidable manual P 178 0.0261 161 0.22 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.2 0.000212 0.16 AML other m 2021-10-07T16:59:02.75
IV.FDMO.HHE. ML:1.1 0.000183 0.12 AML other m 2021-10-07T16:59:02.73
IV.NRCA.HHN. ML:1.5 0.0002325 0.14 AML other m 2021-10-07T16:59:05.59
IV.NRCA.HHE. ML:1.2 0.000121658975 0.064 AML other m 2021-10-07T16:59:06.16
IV.CESI.HNE. ML:1.2 0.0001565282 0.4864 AML other m 2021-10-07T16:59:03.85
IV.CESI.HHE. ML:0.9 8.8833085E-5 0.0896 AML other m 2021-10-07T16:59:04.37
IV.CESI.HHN. ML:1 0.000119203575 0.0896 AML other m 2021-10-07T16:59:04.37
IV.MML1.EHE. ML:0.7 4.6928665E-5 0.2048 AML other m 2021-10-07T16:59:05.18
IV.MML1.EHN. ML:1 9.04659E-5 4.4544 AML other m 2021-10-07T16:59:05.26
IV.MML1.HNE. ML:1 8.548283E-5 1.9072 AML other m 2021-10-07T16:59:06.04
IV.MML1.HNN. ML:1.1 0.000114426545 0.8064 AML other m 2021-10-07T16:59:05.24
IV.CSP1.EHE. ML:1.4 0.000188605825 0.2816 AML other m 2021-10-07T16:59:05.64
IV.CSP1.EHN. ML:1.3 0.0001744297125 1.1776 AML other m 2021-10-07T16:59:05.87
IV.NRCA.HNE. ML:1.3 0.00014587535 0.0256 AML other m 2021-10-07T16:59:06.16
IV.NRCA.HNN. ML:1.4 0.0002106871 0.1536 AML other m 2021-10-07T16:59:05.52
IV.ASSB.HHE. ML:1.4 0.00010763225 2.2528 AML other m 2021-10-07T16:59:09.08
IV.ASSB.HHN. ML:1.1 4.90854745E-5 0.8832 AML other m 2021-10-07T16:59:09.99
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