Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-02-2021 and time 12:24:04 (Italy) in region 5 km NW Monte Cavallo (MC)

A magnitude ML 1.5 earthquake occured in region: 5 km NW Monte Cavallo (MC), on

  • 17-02-2021 11:24:04 (UTC)
  • 17-02-2021 12:24:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0280, 12.9640 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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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
Serravalle di Chienti MC 5 1070 1215
Pieve Torina MC 7 1458 2673
Muccia MC 9 915 3588
Fiordimonte MC 10 202 3790
Pievebovigliana MC 11 866 4656
Sefro MC 13 422 5078
Camerino MC 15 6974 12052
Visso MC 15 1107 13159
Sellano PG 16 1079 14238
Fiastra MC 16 559 14797
Nocera Umbra PG 17 5839 20636
Pioraco MC 17 1134 21770
Ussita MC 17 444 22214
Acquacanina MC 17 121 22335
Valtopina PG 17 1398 23733
Preci PG 18 724 24457
Fiuminata MC 18 1402 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
98 Km S of Pesaro (94582 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.5 2021-02-17
11:24:04		 43.028 12.9638 11 2021-07-12
16:55:00		 Bollettino Sismico Italiano INGV 87602731
Reviewed
Rev100 		ML 1.5 2021-02-17
11:24:04		 43.0278 12.9612 10 2021-02-17
11:35:21		 Sala Sismica INGV-Roma 87237421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-17 11:24:04 ± 0.03
Latitude 43.0280 ± 0.0018
Longitude 12.9638 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87602731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 209
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.59535
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 87602731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-01 15:05:36

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 87237421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-17 11:35:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RNI2.HHZ. 2021-02-17T11:24:52.61 3.0 undecidable manual Sn -0.15 0
IV.PESA.HHZ. 2021-02-17T11:24:32.71 3.0 undecidable manual S -3.69 0
IV.VVLD.HHZ. 2021-02-17T11:24:29.20 3.0 undecidable manual P 2.18 0
IV.ARVD.HHZ. 2021-02-17T11:24:21.55 0.6 undecidable manual S 358 52.2033 50 0.32 44
IV.MURB.HHZ. 2021-02-17T11:24:19.45 0.3 undecidable manual S 306 44.1225 50 0.38 66
IV.MOMA.HHZ. 2021-02-17T11:24:18.43 0.3 undecidable manual S 232 40.5261 50 0.32 67
IV.GAVE.EHZ. 2021-02-17T11:24:17.41 0.3 undecidable manual S 189 37.629 50 0.05 71
IV.PIEI.HHZ. 2021-02-17T11:24:16.35 0.3 undecidable manual P 329 66.0894 50 -0.1 67
IV.FOSV.EHZ. 2021-02-17T11:24:16.35 0.3 undecidable manual S 331 33.8439 50 0.02 72
IV.MMO1.EHZ. 2021-02-17T11:24:16.00 0.3 undecidable manual S 116 32.745 50 -0.04 72
IV.EL6.EHZ. 2021-02-17T11:24:16.88 0.3 undecidable manual S 18 35.2425 50 0.17 70
IV.ATCC.EHZ. 2021-02-17T11:24:15.39 0.6 undecidable manual S 304 31.5462 50 -0.31 46
IV.ARVD.HHZ. 2021-02-17T11:24:14.24 0.1 undecidable manual P 358 52.2033 50 -0.06 92
IV.MC2.EHZ. 2021-02-17T11:24:13.43 0.3 undecidable manual S 125 22.3554 50 0.16 72
IV.NRCA.HHZ. 2021-02-17T11:24:13.75 0.1 undecidable manual S 150 24.753 50 -0.17 95
IV.ASSB.HHZ. 2021-02-17T11:24:13.72 0.3 undecidable manual S 274 24.753 50 -0.2 71
IV.SNTG.HHZ. 2021-02-17T11:24:13.93 0.3 undecidable manual S 356 25.2525 50 -0.11 72
IV.FIU1.HNZ. 2021-02-17T11:24:12.07 0.3 undecidable manual S 352 17.9709 50 -0.03 74
IV.MOMA.HHZ. 2021-02-17T11:24:12.54 0.3 undecidable manual P 232 40.5261 50 0.04 71
IV.GAVE.EHZ. 2021-02-17T11:24:12.09 0.1 undecidable manual P 189 37.629 50 0.02 96
IV.MURB.HHZ. 2021-02-17T11:24:12.92 0.1 undecidable manual P 306 44.1225 50 -0.13 93
IV.MF5.EHZ. 2021-02-17T11:24:12.23 0.1 undecidable manual P 96 40.4262 50 -0.27 91
IV.CSP1.EHZ. 2021-02-17T11:24:12.96 0.3 undecidable manual S 70 20.7681 50 0.12 73
IV.EL6.EHZ. 2021-02-17T11:24:11.78 0.1 undecidable manual P 18 35.2425 50 0.09 95
IV.ATCC.EHZ. 2021-02-17T11:24:11.08 0.6 undecidable manual P 304 31.5462 50 -0.04 48
IV.FOSV.EHZ. 2021-02-17T11:24:11.30 0.1 undecidable manual P 331 33.8439 50 -0.17 93
IV.MMO1.EHZ. 2021-02-17T11:24:11.31 0.1 undecidable manual P 116 32.745 50 0 97
IV.SNTG.HHZ. 2021-02-17T11:24:10.06 0.1 undecidable manual P 356 25.2525 50 -0.09 96
IV.NRCA.HHZ. 2021-02-17T11:24:10.03 0.1 negative manual P 150 24.753 50 -0.05 97
IV.CSP1.EHZ. 2021-02-17T11:24:09.49 0.1 undecidable manual P 70 20.7681 50 0.03 98
IV.CESI.HHZ. 2021-02-17T11:24:09.11 0.3 undecidable manual S 242 5.4945 154 -0.01 76
IV.MC2.EHZ. 2021-02-17T11:24:09.76 0.1 undecidable manual P 125 22.3554 50 0.05 98
IV.FDMO.HHZ. 2021-02-17T11:24:09.98 0.1 undecidable manual S 85 10.0788 138 -0.05 100
IV.FIU1.HNZ. 2021-02-17T11:24:09.06 0.3 undecidable manual P 352 17.9709 50 0.03 74
IV.ASSB.HHZ. 2021-02-17T11:24:09.98 0.1 undecidable manual P 274 24.753 50 -0.1 96
IT.MTCL.HGZ. 2021-02-17T11:24:08.84 0.3 undecidable manual S 143 4.7952 157 -0.18 74
IT.MTCL.HGZ. 2021-02-17T11:24:07.34 0.1 undecidable manual P 143 4.7952 157 0.09 100
IV.CESI.HHZ. 2021-02-17T11:24:07.52 0.1 undecidable manual P 242 5.4945 154 0.21 97
IV.FDMO.HHZ. 2021-02-17T11:24:07.95 0.1 undecidable manual P 85 10.0788 138 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HNE. ML:1.6 0.00064 0.24 AML other m 2021-02-17T11:24:09.31
IV.CESI.HHE. ML:1.7 0.0007484999999999999 0.24 AML other m 2021-02-17T11:24:09.43
IV.CESI.HNN. ML:1.7 0.0007704999999999999 0.1 AML other m 2021-02-17T11:24:09.43
IV.CESI.HHN. ML:1.7 0.000789 0.08 AML other m 2021-02-17T11:24:09.43
IV.FDMO.HHE. ML:1.4 0.000311 0.14 AML other m 2021-02-17T11:24:10.13
IV.FDMO.HHN. ML:1.5 0.000386 0.26 AML other m 2021-02-17T11:24:10.17
IV.CSP1.EHN. ML:1.5 0.00023249999999999999 0.14 AML other m 2021-02-17T11:24:13.50
IV.CSP1.EHE. ML:1.6 0.0002445 0.64 AML other m 2021-02-17T11:24:14.36
IV.ASSB.HHN. ML:1.5 0.000186 1.56 AML other m 2021-02-17T11:24:14.95
IV.SNTG.HHE. ML:1.4 0.00014050000000000003 0.12 AML other m 2021-02-17T11:24:14.50
IV.SNTG.HHN. ML:1.4 0.00014050000000000003 0.12 AML other m 2021-02-17T11:24:14.51
IV.ASSB.HHE. ML:1.7 0.0002945 0.5 AML other m 2021-02-17T11:24:14.99
IV.ATCC.EHE. ML:1.3 0.00009375 0.34 AML other m 2021-02-17T11:24:16.17
IV.ATCC.EHN. ML:1.2 0.0000742 0.3 AML other m 2021-02-17T11:24:16.33
IV.GAVE.EHE. ML:1.7 0.0001875 0.14 AML other m 2021-02-17T11:24:18.08
IV.GAVE.EHN. ML:1.6 0.00014450000000000002 1.38 AML other m 2021-02-17T11:24:18.80
IV.MF5.EHE. ML:1.2 0.000058315 0.7 AML other m 2021-02-17T11:24:18.62
IV.MF5.EHN. ML:1.4 0.00007492 0.44 AML other m 2021-02-17T11:24:19.87
IV.MURB.HHE. ML:1.5 0.00009995000000000002 0.24 AML other m 2021-02-17T11:24:21.55
IV.MURB.HHN. ML:1.4 0.0000743 1 AML other m 2021-02-17T11:24:22.13
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