Earthquake with magnitude of ML 0.9 on date 18-10-2021 and time 13:21:49 (UTC) in region 2 km W Muccia (MC)

A magnitude ML 0.9 earthquake occured in region: 2 km W Muccia (MC), on

  • 18-10-2021 13:21:49 (UTC)
  • 18-10-2021 15:21:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.093, 13.018 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
Muccia MC 3 915 915
Serravalle di Chienti MC 6 1070 1985
Pieve Torina MC 6 1458 3443
Camerino MC 6 6974 10417
Pievebovigliana MC 6 866 11283
Sefro MC 8 422 11705
Fiordimonte MC 9 202 11907
Pioraco MC 10 1134 13041
Monte Cavallo MC 11 145 13186
Fiuminata MC 13 1402 14588
Fiastra MC 13 559 15147
Castelraimondo MC 14 4587 19734
Acquacanina MC 15 121 19855
Serrapetrona MC 17 966 20821
Gagliole MC 17 620 21441
Caldarola MC 18 1823 23264
Matelica MC 18 9981 33245
Nocera Umbra PG 19 5839 39084
Esanatoglia MC 19 2034 41118
Visso MC 19 1107 42225
Ussita MC 19 444 42669
Belforte del Chienti MC 20 1886 44555
Cessapalombo MC 20 512 45067
San Severino Marche MC 20 12726 57793

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
66 Km NE of Terni (111501 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
84 Km S of Fano (60888 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Pesaro (94582 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 0.9 2021-10-18
13:21:49
43.0933 13.0182 12 2021-10-18
13:35:14
Sala Sismica INGV-Roma 96727781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-18 13:21:49 ± 0.08
Latitude 43.0933 ± 0.0027
Longitude 13.0182 ± 0.0049
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 96727781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 423
Semi-minor axis of confidence ellipse (meter) 172
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2689
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 96727781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-18 13:35:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
SI.ROSI.HHZ. 2021-10-18T13:23:38.17 3.0 undecidable manual Sn -1.23 0
CR.ZAG.BHZ. 2021-10-18T13:23:36.14 3.0 undecidable manual Sg 7.83 0
IV.ILOS.HHZ. 2021-10-18T13:23:18.52 3.0 undecidable manual Pg 13.75 0
IX.PGN3.HHZ.02 2021-10-18T13:23:18.09 3.0 undecidable manual Sn -6.77 0
IV.ROVR.HHZ. 2021-10-18T13:23:16.74 3.0 undecidable manual Sg 4.33 0
IV.PTCC.HHZ. 2021-10-18T13:23:16.82 3.0 undecidable manual Sn -6.76 0
IV.ZEN8.EHZ. 2021-10-18T13:23:16.65 3.0 undecidable manual Sn 1.49 0
IX.RSF3.HHZ.02 2021-10-18T13:23:06.71 3.0 undecidable manual Sn -3.48 0
SI.ROSI.HHZ. 2021-10-18T13:23:00.44 3.0 negative manual Pg 9.19 0
IV.IST3.HHZ. 2021-10-18T13:22:59.78 3.0 negative manual Pn -1.45 0
GU.GSCL.HHZ. 2021-10-18T13:22:52.66 3.0 undecidable manual Sn -1.05 0
IV.FIU.EHZ. 2021-10-18T13:22:50.63 3.0 undecidable manual Sg 3.05 0
GU.ROTM.HHZ. 2021-10-18T13:22:46.53 3.0 positive manual Pn -1.45 0
IV.PTCC.HHZ. 2021-10-18T13:22:43.11 3.0 negative manual Pn 0.75 0
IV.IMOL.HNZ. 2021-10-18T13:22:35.71 3.0 undecidable manual Sn -3.74 0
IT.PLTA.HNZ. 2021-10-18T13:22:20.95 3.0 undecidable manual Pn -1.84 0
IV.TST01.HHZ. 2021-10-18T13:22:18.70 3.0 undecidable manual Pn -2.64 0
IV.VIVA.HHZ. 2021-10-18T13:22:15.58 3.0 positive manual P -0.47 0
IV.CRTC.HHZ. 2021-10-18T13:22:12.84 3.0 undecidable manual S -1.76 0
IV.APEC.HHZ. 2021-10-18T13:22:11.75 3.0 undecidable manual S 0.3 0
IV.PE3.EHZ. 2021-10-18T13:22:10.66 3.0 undecidable manual S -3.87 0
IV.BADI.EHZ. 2021-10-18T13:22:10.60 3.0 undecidable manual S -2.99 0
IV.NARO.HHZ. 2021-10-18T13:21:59.89 3.0 positive manual P -1.54 0
IV.ASSB.HHZ. 2021-10-18T13:21:59.74 0.3 undecidable manual S 259 0.2671 94 -0.05 73
IV.EL6.EHZ. 2021-10-18T13:21:59.26 0.3 undecidable manual S 14 0.2437 94 0.18 71
IV.SNTG.HHZ. 2021-10-18T13:21:56.74 0.1 undecidable manual S 341 0.1709 100 -0.21 95
IV.ASSB.HHZ. 2021-10-18T13:21:56.10 0.3 undecidable manual P 259 0.2671 94 0.71 60
IV.CSP1.EHZ. 2021-10-18T13:21:56.13 0.3 undecidable manual S 91 0.1358 108 0.18 73
IV.FIU1.HNZ. 2021-10-18T13:21:55.27 3.0 undecidable manual S 0
IV.CESI.HHZ. 2021-10-18T13:21:55.56 0.3 undecidable manual S 223 0.1214 114 0.03 74
IV.FEMA.HNN. 2021-10-18T13:21:55.92 0.3 undecidable manual S 170 0.1331 109 0.06 74
IV.NRCA.HHZ. 2021-10-18T13:21:55.10 0.1 undecidable manual P 165 0.2689 94 -0.32 91
IV.FDMO.HHZ. 2021-10-18T13:21:54.28 0.1 undecidable manual S 138 0.0764 134 -0.14 97
IV.MC2.EHZ. 2021-10-18T13:21:54.48 0.3 undecidable manual P 145 0.2203 95 -0.12 72
IV.EL6.EHZ. 2021-10-18T13:21:54.85 0.1 undecidable manual P 14 0.2437 94 -0.14 95
IT.MTCL.HGN. 2021-10-18T13:21:54.78 0.3 undecidable manual S 188 0.1007 122 -0.21 72
IV.MML1.EHZ. 2021-10-18T13:21:53.90 0.1 undecidable manual S 301 0.0396 155 0.11 100
IV.FEMA.HNN. 2021-10-18T13:21:53.30 0.1 undecidable manual P 170 0.1331 109 0.17 96
IV.CSP1.EHZ. 2021-10-18T13:21:53.25 0.1 undecidable manual P 91 0.1358 108 0.07 99
IV.PF6.EHE. 2021-10-18T13:21:53.32 0.3 undecidable manual P 71 0.1358 108 0.15 73
IV.SNTG.HHZ. 2021-10-18T13:21:53.59 0.1 undecidable manual P 341 0.1709 100 -0.17 96
IV.MDAR.HNZ. 2021-10-18T13:21:53.22 3.0 undecidable manual P 0
IT.MTCL.HGN. 2021-10-18T13:21:52.60 0.1 undecidable manual P 188 0.1007 122 -0.02 100
IV.MML1.EHZ. 2021-10-18T13:21:52.05 0.1 undecidable manual P 301 0.0396 155 0.12 99
IV.FDMO.HHZ. 2021-10-18T13:21:52.24 0.1 undecidable manual P 138 0.0764 134 -0.06 99
IV.CESI.HHZ. 2021-10-18T13:21:52.94 0.1 undecidable manual P 223 0.1214 114 0 100
IV.FIU1.HNZ. 2021-10-18T13:21:50.58 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.9 0.000106 0.18 AML other m 2021-10-18T13:21:54.47
IV.FDMO.HHE. ML:0.8 8.12E-5 0.1 AML other m 2021-10-18T13:21:54.49
IV.CESI.HHN. ML:0.8 5.8014535E-5 0.096 AML other m 2021-10-18T13:21:55.64
IV.CESI.HHE. ML:1 9.67448E-5 0.1024 AML other m 2021-10-18T13:21:55.66
IV.SNTG.HHE. ML:0.6 3.205E-5 0.16 AML other m 2021-10-18T13:21:56.93
IV.SNTG.HHN. ML:0.8 4.355E-5 0.12 AML other m 2021-10-18T13:21:56.94
IV.NRCA.HHN. ML:1.2 7.01E-5 0.1 AML other m 2021-10-18T13:22:04.91
IV.NRCA.HHE. ML:1 4.9255135E-5 0.096 AML other m 2021-10-18T13:22:05.66
IV.MML1.EHE. ML:0.4 3.7323035E-5 0.096 AML other m 2021-10-18T13:21:54.14
IV.MML1.EHN. ML:0.6 5.7737485E-5 0.1024 AML other m 2021-10-18T13:21:54.25
IV.CESI.HNE. ML:1.1 0.000119043 0.8192 AML other m 2021-10-18T13:21:56.07
IV.CESI.HNN. ML:1.1 0.000120884555 1.0112 AML other m 2021-10-18T13:21:55.58
IV.CSP1.EHE. ML:0.9 7.660325E-5 0.1024 AML other m 2021-10-18T13:21:56.64
IV.CSP1.EHN. ML:1 8.401914E-5 0.1792 AML other m 2021-10-18T13:21:56.91
IV.EL6.EHE. ML:0.9 3.7950105E-5 0.1536 AML other m 2021-10-18T13:21:59.54
IV.EL6.EHN. ML:0.8 3.2429005E-5 0.096 AML other m 2021-10-18T13:21:59.46
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