Earthquake with magnitude of ML 0.9 on date 04-11-2021 and time 10:58:16 (Italy) in region 3 km E Monte Cavallo (MC)

A magnitude ML 0.9 earthquake occured in region: 3 km E Monte Cavallo (MC), on

  • 04-11-2021 09:58:16 (UTC)
  • 04-11-2021 10:58:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.988, 13.037 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 3 145 145
Pieve Torina MC 7 1458 1603
Fiordimonte MC 7 202 1805
Visso MC 8 1107 2912
Pievebovigliana MC 9 866 3778
Ussita MC 10 444 4222
Muccia MC 11 915 5137
Fiastra MC 11 559 5696
Serravalle di Chienti MC 12 1070 6766
Preci PG 12 724 7490
Acquacanina MC 12 121 7611
Castelsantangelo sul Nera MC 14 281 7892
Sellano PG 14 1079 8971
Bolognola MC 16 142 9113
Camerino MC 17 6974 16087
Sefro MC 19 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
54 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 inhabitants)
99 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.9 2021-11-04
09:58:16
42.9877 13.0367 12 2021-11-04
10:13:00
Sala Sismica INGV-Roma 97252641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-04 09:58:16 ± 0.17
Latitude 42.9877 ± 0.0063
Longitude 13.0367 ± 0.0111
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 97252641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 929
Semi-minor axis of confidence ellipse (meter) 378
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 930
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 13
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
Epicentral distance of station farthest from the epicenter (degree) 0.16458
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 97252641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-04 10:13:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ESML.HHZ. 2021-11-04T09:59:51.60 3.0 negative manual Pg 16.200001 0
IV.SLCN.HHZ. 2021-11-04T09:59:50.67 3.0 undecidable manual Sn -1 0
IV.HVIT.HHZ. 2021-11-04T09:59:46.95 3.0 positive manual Pn 4.34 0
IV.MRLC.HHZ. 2021-11-04T09:59:46.47 3.0 undecidable manual Sn 3.53 0
AC.VLO.HHZ. 2021-11-04T09:59:42.05 3.0 undecidable manual Pn 7.7 0
IV.IFOR.HHZ. 2021-11-04T09:59:39.06 3.0 undecidable manual Sg 10.59 0
IV.FERC.HHZ.00 2021-11-04T09:59:35.23 3.0 positive manual Pn 5.13 0
IV.MUCR.HHZ. 2021-11-04T09:59:30.88 3.0 undecidable manual Pn 1.03 0
IV.ECTS.HHZ. 2021-11-04T09:59:30.25 3.0 undecidable manual Pn -2.57 0
IV.GRIS.EHZ. 2021-11-04T09:59:29.03 3.0 undecidable manual Pg 15.62 0
IV.CDRU.HNZ. 2021-11-04T09:59:05.75 3.0 undecidable manual Pn 4.09 0
IV.STAL.HHZ. 2021-11-04T09:58:53.07 3.0 positive manual Pg 7.55 0
IV.BAG8.HNZ. 2021-11-04T09:58:51.26 3.0 undecidable manual Pg 7.14 0
IV.ZEN8.EHZ. 2021-11-04T09:58:48.33 3.0 undecidable manual Pg 7.69 0
IV.MILN.HNZ. 2021-11-04T09:58:46.17 3.0 negative manual Pn -2.21 0
IV.TST01.HHZ. 2021-11-04T09:58:40.06 3.0 undecidable manual Pn -2.06 0
IV.MMO1.EHZ. 2021-11-04T09:58:35.83 3.0 undecidable manual Sn -1.79 0
IV.IMOL.HNZ. 2021-11-04T09:58:31.40 3.0 undecidable manual Sg -1.5 0
IV.CSP1.EHZ. 2021-11-04T09:58:24.37 0.3 undecidable manual S 50 0.161 103 0.32 70
IV.NRCA.HNE. 2021-11-04T09:58:24.05 0.3 undecidable manual S 160 0.1646 102 -0.09 74
IV.MML1.EHZ. 2021-11-04T09:58:23.24 0.3 undecidable manual S 339 0.134 110 -0.05 75
IV.CESI.HHZ. 2021-11-04T09:58:22.35 0.6 undecidable manual S 280 0.098 124 0.02 51
IV.NRCA.HNE. 2021-11-04T09:58:21.05 0.1 undecidable manual P 160 0.1646 102 0.02 100
IV.FDMO.HHZ. 2021-11-04T09:58:21.60 0.3 undecidable manual S 37 0.0612 143 0.06 77
IT.MTCL.HGE. 2021-11-04T09:58:20.88 0.3 undecidable manual S 283 0.0279 162 -0.2 74
IV.CSP1.EHZ. 2021-11-04T09:58:20.24 0.1 undecidable manual P 50 0.161 103 -0.74 83
IV.MML1.EHZ. 2021-11-04T09:58:20.62 0.3 undecidable manual P 339 0.134 110 0.08 75
IV.MC2.EHE. 2021-11-04T09:58:20.96 0.6 undecidable manual P 124 0.1349 110 0.41 46
IV.CESI.HHZ. 2021-11-04T09:58:20.12 0.3 undecidable manual P 280 0.098 124 0.13 74
IV.FDMO.HHZ. 2021-11-04T09:58:19.77 0.3 undecidable manual P 37 0.0612 143 0.24 73
IT.MTCL.HGE. 2021-11-04T09:58:19.33 0.3 undecidable manual P 283 0.0279 162 0.06 77
IV.CPGN.EHZ. 2021-11-04T09:58:10.02 3.0 undecidable manual P -0.7 0
IV.PE3.EHZ. 2021-11-04T09:58:10.01 3.0 undecidable manual P -0.49 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 7.313333E-5 0.1216 AML other m 2021-11-04T09:58:21.66
IV.FDMO.HHN. ML:0.8 7.7980645E-5 0.1408 AML other m 2021-11-04T09:58:21.66
IV.CESI.HHE. ML:0.8 6.5679565E-5 2.7776 AML other m 2021-11-04T09:58:22.48
IV.CESI.HHN. ML:0.6 4.4449812E-5 0.16 AML other m 2021-11-04T09:58:22.60
IV.CSP1.EHE. ML:1.5 0.0002328752 2.5024 AML other m 2021-11-04T09:58:24.49
IV.CSP1.EHN. ML:1.4 0.00020989275 3.8976 AML other m 2021-11-04T09:58:25.94
IV.MML1.HNE. ML:1.1 0.000101835815 0.768 AML other m 2021-11-04T09:58:23.97
IV.MML1.HNN. ML:1 8.1345865E-5 3.1424 AML other m 2021-11-04T09:58:23.85
IV.MML1.EHE. ML:0.5 3.148378E-5 2.88 AML other m 2021-11-04T09:58:23.53
IV.MML1.EHN. ML:0.7 4.6201175E-5 2.1248 AML other m 2021-11-04T09:58:24.37
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