Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 24-02-2021 and time 12:20:05 (UTC) in region 4 km SE Monte Cavallo (MC)

A magnitude ML 1.4 earthquake occured in region: 4 km SE Monte Cavallo (MC), on

  • 24-02-2021 12:20:05 (UTC)
  • 24-02-2021 13:20:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9720, 13.0440 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.

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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 4 145 145
Visso MC 6 1107 1252
Pieve Torina MC 8 1458 2710
Fiordimonte MC 8 202 2912
Ussita MC 8 444 3356
Preci PG 10 724 4080
Pievebovigliana MC 11 866 4946
Fiastra MC 12 559 5505
Muccia MC 12 915 6420
Castelsantangelo sul Nera MC 12 281 6701
Acquacanina MC 13 121 6822
Sellano PG 13 1079 7901
Serravalle di Chienti MC 13 1070 8971
Bolognola MC 15 142 9113
Camerino MC 18 6974 16087
Cerreto di Spoleto PG 20 1075 17162

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
55 Km E of Perugia (166134 inhabitants)
56 Km NE of Terni (111501 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
97 Km S of Fano (60888 inhabitants)
98 Km NE of Viterbo (67173 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
Reviewed
Rev100 		ML 1.4 2021-02-24
12:20:05		 42.9718 13.0435 11 2021-02-24
12:28:21		 Sala Sismica INGV-Roma 87449751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-24 12:20:05 ± 0.04
Latitude 42.9718 ± 0.0018
Longitude 13.0435 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87449751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 257
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38491
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 87449751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-24 12:28:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CELI.HNZ. 2021-02-24T12:21:44.25 3.0 undecidable manual Sn -6.95 0
FR.SAOF.HHZ.00 2021-02-24T12:21:30.15 3.0 undecidable manual Sn 3.36 0
CH.MUGIO.HHZ. 2021-02-24T12:21:28.72 3.0 undecidable manual Sn -3.66 0
IV.EUCT.HNZ. 2021-02-24T12:21:16.22 3.0 undecidable manual Sn -2.47 0
IV.SCIAC.HHZ. 2021-02-24T12:21:07.82 3.0 undecidable manual Pn 1.99 0
IV.RESU.HHZ. 2021-02-24T12:21:01.27 3.0 negative manual Pn -4.67 0
IV.ILOS.HHZ. 2021-02-24T12:21:01.85 3.0 undecidable manual Pn 2.96 0
IV.PZUN.HHZ. 2021-02-24T12:20:52.80 3.0 positive manual Pg 12.47 0
IV.PE3.EHZ. 2021-02-24T12:20:39.49 3.0 undecidable manual Sg 10.73 0
IV.LPEL.HHZ. 2021-02-24T12:20:38.37 3.0 undecidable manual Sn -3.01 0
IV.MTMR.EHZ. 2021-02-24T12:20:33.89 3.0 negative manual Pn 1.8 0
IV.SARZ.HNZ. 2021-02-24T12:20:32.85 3.0 undecidable manual Pn -4.49 0
IV.COR1.EHZ. 2021-02-24T12:20:29.98 3.0 undecidable manual Sn 0.04 0
IV.MOMA.HNZ. 2021-02-24T12:20:19.16 0.3 undecidable manual S 244 42.7239 50 0.06 71
IV.PF6.EHE. 2021-02-24T12:20:13.52 0.3 undecidable manual S 34 22.1556 50 -0.07 74
IV.MOMA.HNZ. 2021-02-24T12:20:13.18 0.1 undecidable manual P 244 42.7239 50 -0.03 95
IV.FIR.HHZ. 2021-02-24T12:20:12.84 3.0 undecidable manual P -0.84 0
IV.MF5.EHZ. 2021-02-24T12:20:12.32 3.0 positive manual Pn 1.72 0
IV.CSP1.EHZ. 2021-02-24T12:20:12.73 0.6 undecidable manual S 44 18.6702 50 0.06 49
IV.EL6.EHZ. 2021-02-24T12:20:12.93 3.0 negative manual Pg 3.06 0
IV.MC2.EHZ. 2021-02-24T12:20:11.34 0.6 undecidable manual S 119 13.5753 129 0.12 49
IV.NRCA.HHZ. 2021-02-24T12:20:11.68 0.6 undecidable manual S 159 16.3725 124 -0.32 47
IV.MML1.EHE. 2021-02-24T12:20:11.97 0.6 undecidable manual S 340 16.7721 123 -0.14 49
IV.GAVE.EHZ. 2021-02-24T12:20:11.78 3.0 negative manual Pg 3.99 0
IV.CESI.HHZ. 2021-02-24T12:20:10.86 0.6 undecidable manual S 288 11.877 133 0.1 50
IV.MMO1.EHZ. 2021-02-24T12:20:10.36 3.0 positive manual Pn 0.63 0
IV.MML1.EHE. 2021-02-24T12:20:09.16 0.1 undecidable manual P 340 16.7721 123 -0.02 100
IV.CSP1.EHZ. 2021-02-24T12:20:09.57 0.6 negative manual P 44 18.6702 50 0.07 49
IV.PF6.EHE. 2021-02-24T12:20:09.99 0.1 undecidable manual P 34 22.1556 50 -0.05 99
IV.NRCA.HHZ. 2021-02-24T12:20:09.04 0.1 undecidable manual P 159 16.3725 124 -0.08 99
IV.FEMA.HNN. 2021-02-24T12:20:09.03 0.3 undecidable manual S 155 1.1988 174 0.06 76
IT.MTCL.HGZ. 2021-02-24T12:20:08.98 0.6 undecidable manual S 304 4.2957 158 -0.26 49
IV.MC2.EHZ. 2021-02-24T12:20:08.89 1.0 negative manual P 119 13.5753 129 0.23 24
IV.CESI.HHZ. 2021-02-24T12:20:08.51 1.0 undecidable manual P 288 11.877 133 0.11 25
IV.FIAM.HHZ. 2021-02-24T12:20:08.83 3.0 positive manual Pn -1.3 0
IV.FEMA.HNN. 2021-02-24T12:20:07.55 0.1 undecidable manual P 155 1.1988 174 0.18 99
IT.MTCL.HGZ. 2021-02-24T12:20:07.60 0.6 undecidable manual P 304 4.2957 158 0.08 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.5 0.00034750000000000004 0.22 AML other m 2021-02-24T12:20:11.12
IV.CESI.HHE. ML:1.3 0.0002385 0.4 AML other m 2021-02-24T12:20:11.12
IV.NRCA.HHN. ML:1.2 0.00014050000000000003 1.12 AML other m 2021-02-24T12:20:12.67
IV.NRCA.HHE. ML:1.1 0.0001092 0.76 AML other m 2021-02-24T12:20:12.73
IV.CSP1.EHN. ML:1.6 0.000293 1.32 AML other m 2021-02-24T12:20:12.24
IV.CSP1.EHE. ML:1.6 0.000324 0.58 AML other m 2021-02-24T12:20:13.54
IV.EL6.EHE. ML:1.2 0.000059587635 2.5792 AML other m 2021-02-24T12:20:21.19
IV.EL6.EHN. ML:1.2 0.000054 0.84 AML other m 2021-02-24T12:20:19.97
IV.GAVE.EHE. ML:1.4 0.00010793357499999999 0.2368 AML other m 2021-02-24T12:20:16.76
IV.GAVE.EHN. ML:1.4 0.000098374085 0.1984 AML other m 2021-02-24T12:20:16.90
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