Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 28-02-2021 and time 18:33:17 (UTC) in region 4 km SW Muccia (MC)

A magnitude ML 1.3 earthquake occured in region: 4 km SW Muccia (MC), on

  • 28-02-2021 18:33:17 (UTC)
  • 28-02-2021 19:33:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0610, 13.0060 at 13 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
Muccia MC 4 915 915
Pieve Torina MC 4 1458 2373
Serravalle di Chienti MC 5 1070 3443
Pievebovigliana MC 7 866 4309
Fiordimonte MC 7 202 4511
Monte Cavallo MC 7 145 4656
Camerino MC 10 6974 11630
Sefro MC 11 422 12052
Fiastra MC 13 559 12611
Pioraco MC 13 1134 13745
Acquacanina MC 14 121 13866
Fiuminata MC 16 1402 15268
Visso MC 16 1107 16375
Ussita MC 17 444 16819
Castelraimondo MC 17 4587 21406
Nocera Umbra PG 18 5839 27245
Bolognola MC 20 142 27387
Serrapetrona MC 20 966 28353
Sellano PG 20 1079 29432

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
50 Km E of Perugia (166134 inhabitants)
63 Km NE of Terni (111501 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
87 Km S of Fano (60888 inhabitants)
95 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
Reviewed
Rev100 		ML 1.3 2021-02-28
18:33:17		 43.0608 13.0057 13 2021-02-28
18:40:55		 Sala Sismica INGV-Roma 87578391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-28 18:33:17 ± 0.05
Latitude 43.0608 ± 0.0027
Longitude 13.0057 ± 0.0025
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87578391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 261
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
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) 62
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40919
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 87578391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-28 18:40:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LINA.HHZ. 2021-02-28T18:35:03.87 3.0 positive manual Pn 4.77 0
IV.ESCV.HHZ. 2021-02-28T18:34:50.93 3.0 undecidable manual Pg 15.12 0
IV.VOBA.EHZ. 2021-02-28T18:34:48.75 3.0 undecidable manual Sn 8.4 0
IV.SGO.HNZ. 2021-02-28T18:34:39.13 3.0 undecidable manual Sn 1.06 0
IV.GIZZ.HHZ. 2021-02-28T18:34:27.60 3.0 positive manual Pn 2 0
IV.CGL.BHZ. 2021-02-28T18:34:23.52 3.0 undecidable manual Pn -0.59 0
CR.STON.BHZ. 2021-02-28T18:34:22.66 3.0 undecidable manual Pg 14.93 0
IV.PIGN.HHZ. 2021-02-28T18:34:22.41 3.0 undecidable manual Sg 8.23 0
IV.MILN.HNZ. 2021-02-28T18:34:19.35 3.0 positive manual Pn 9.2 0
IV.VARE.HHZ. 2021-02-28T18:34:18.97 3.0 undecidable manual Pn 1.97 0
IV.CET2.HHZ. 2021-02-28T18:34:17.25 3.0 undecidable manual Pn -0.49 0
IV.MNTV.EHZ. 2021-02-28T18:33:57.16 3.0 negative manual Pn 0.82 0
IV.FIR.HHZ. 2021-02-28T18:33:45.53 3.0 undecidable manual Pg 5.15 0
IV.CRTC.HHZ. 2021-02-28T18:33:39.81 3.0 undecidable manual S -1.09 0
IV.MOMA.HHZ. 2021-02-28T18:33:32.30 0.6 undecidable manual S 231 45.4212 94 0.41 43
IV.FAGN.HHZ. 2021-02-28T18:33:31.17 3.0 negative manual P -1.72 0
IV.TERO.HHZ. 2021-02-28T18:33:29.40 3.0 undecidable manual P 0.41 0
IV.EL6.EHZ. 2021-02-28T18:33:28.04 0.3 undecidable manual S 15 30.747 96 0.06 71
IV.MMO1.EHZ. 2021-02-28T18:33:28.21 0.3 undecidable manual S 124 31.6461 96 0 72
IV.ATCC.EHZ. 2021-02-28T18:33:28.53 0.3 undecidable manual S 295 32.6451 96 0.05 71
IV.NRCA.HHZ. 2021-02-28T18:33:26.72 0.3 undecidable manual S 161 26.751 98 -0.19 70
IV.MOMA.HHZ. 2021-02-28T18:33:25.53 0.6 negative manual P 231 45.4212 94 -0.18 45
IV.MC2.EHZ. 2021-02-28T18:33:25.89 0.3 undecidable manual S 138 22.2555 102 0.15 71
IV.PF6.EHZ. 2021-02-28T18:33:24.46 0.6 undecidable manual S 61 17.4714 109 -0.05 49
IV.CSP1.EHZ. 2021-02-28T18:33:24.56 0.3 undecidable manual S 78 16.4724 111 0.3 69
IV.EL6.EHZ. 2021-02-28T18:33:23.31 0.3 negative manual P 15 30.747 96 -0.15 70
IV.MMO1.EHZ. 2021-02-28T18:33:23.44 1.0 positive manual P 124 31.6461 96 -0.15 23
IV.ATCC.EHZ. 2021-02-28T18:33:23.59 0.6 negative manual P 295 32.6451 96 -0.16 47
IV.FDMO.HHZ. 2021-02-28T18:33:22.30 0.3 undecidable manual S 112 7.1928 144 0.04 75
IV.MML1.EHZ. 2021-02-28T18:33:22.18 0.3 undecidable manual S 335 6.4935 147 0.02 75
IV.NRCA.HHZ. 2021-02-28T18:33:22.60 0.1 negative manual P 161 26.751 98 -0.24 93
IV.MC2.EHZ. 2021-02-28T18:33:22.32 0.3 undecidable manual P 138 22.2555 102 0.16 71
IV.CESI.HHZ. 2021-02-28T18:33:22.80 0.3 undecidable manual S 233 10.2786 131 -0.04 74
IT.MTCL.HGZ. 2021-02-28T18:33:22.13 0.6 undecidable manual S 184 7.4814 142 -0.18 48
IV.PF6.EHZ. 2021-02-28T18:33:21.36 0.3 undecidable manual P 61 17.4714 109 -0.1 73
IV.CSP1.EHZ. 2021-02-28T18:33:21.33 0.6 undecidable manual P 78 16.4724 111 0.02 49
IV.FDMO.HHZ. 2021-02-28T18:33:20.19 0.3 undecidable manual P 112 7.1928 144 0.03 75
IV.MML1.EHZ. 2021-02-28T18:33:20.12 0.3 undecidable manual P 335 6.4935 147 0.02 75
IV.CESI.HHZ. 2021-02-28T18:33:20.50 0.1 undecidable manual P 233 10.2786 131 0.01 100
IT.MTCL.HGZ. 2021-02-28T18:33:20.17 0.1 undecidable manual P 184 7.4814 142 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.2 0.000199 0.44 AML other m 2021-02-28T18:33:22.47
IV.FDMO.HHN. ML:0.9 0.00009425 0.18 AML other m 2021-02-28T18:33:22.60
IV.CESI.HHE. ML:1.4 0.000251 1.56 AML other m 2021-02-28T18:33:22.94
IV.CESI.HHN. ML:1.4 0.00028300000000000005 0.08 AML other m 2021-02-28T18:33:23.05
IV.CSP1.EHN. ML:1.4 0.00019 1.04 AML other m 2021-02-28T18:33:24.27
IV.CSP1.EHE. ML:1.5 0.00025550000000000003 0.32 AML other m 2021-02-28T18:33:24.83
IV.NRCA.HHE. ML:1.1 0.0000626 1.06 AML other m 2021-02-28T18:33:27.40
IV.NRCA.HHN. ML:1.2 0.00008685 1.18 AML other m 2021-02-28T18:33:28.02
IV.ATCC.EHN. ML:1.3 0.00009070000000000001 1.4 AML other m 2021-02-28T18:33:29.84
IV.ATCC.EHE. ML:1.4 0.00009515000000000001 1.42 AML other m 2021-02-28T18:33:29.86
IV.MOMA.HHE. ML:1.1 0.0000366 0.56 AML other m 2021-02-28T18:33:32.37
IV.MOMA.HHN. ML:1.1 0.000038849999999999996 0.2 AML other m 2021-02-28T18:33:32.71
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