Earthquake with magnitude of ML 1.1 on date 24-02-2021 and time 19:02:17 (Italy) in region 4 km S Cerreto di Spoleto (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km S Cerreto di Spoleto (PG), on

  • 24-02-2021 18:02:17 (UTC)
  • 24-02-2021 19:02:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7840, 12.9250 at 10 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
Cerreto di Spoleto PG 4 1075 1075
Vallo di Nera PG 5 364 1439
Poggiodomo PG 8 117 1556
Sant'Anatolia di Narco PG 9 564 2120
Cascia PG 10 3217 5337
Scheggino PG 11 461 5798
Sellano PG 12 1079 6877
Campello sul Clitunno PG 13 2442 9319
Norcia PG 14 4957 14276
Preci PG 14 724 15000
Monteleone di Spoleto PG 15 599 15599
Spoleto PG 16 38218 53817
Trevi PG 18 8469 62286

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Foligno (57155 inhabitants)
34 Km NE of Terni (111501 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
65 Km W of Teramo (54892 inhabitants)
78 Km NE of Viterbo (67173 inhabitants)
89 Km N of Guidonia Montecelio (88673 inhabitants)
92 Km N of Tivoli (56533 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 1.1 2021-02-24
18:02:17
42.7838 12.9252 10 2021-02-24
18:19:20
Sala Sismica INGV-Roma 87456701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-24 18:02:17 ± 0.04
Latitude 42.7838 ± 0.0018
Longitude 12.9252 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87456701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 334
Semi-minor axis of confidence ellipse (meter) 86
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 281
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 18
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) 0.34714
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 87456701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-24 18:19:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SELL.HHZ. 2021-02-24T18:03:41.23 3.0 undecidable manual Pg 14.89 0
IV.FREG.EHZ. 2021-02-24T18:03:39.96 3.0 undecidable manual Sg 6.46 0
IV.TDS.HHZ. 2021-02-24T18:03:27.42 3.0 undecidable manual Pg 10.47 0
IV.NDIM.HNZ. 2021-02-24T18:03:26.84 3.0 undecidable manual Sg 9.52 0
OT.OT14.EHZ. 2021-02-24T18:03:23.84 3.0 undecidable manual Sg -0.01 0
IV.ZCCA.HNZ. 2021-02-24T18:03:04.00 3.0 undecidable manual Sn -2.81 0
IV.FIR.HHZ. 2021-02-24T18:02:58.33 3.0 undecidable manual S 3.85 0
IV.IMOL.HNZ. 2021-02-24T18:02:56.88 3.0 undecidable manual S -1.36 0
IV.PAOL.HHZ. 2021-02-24T18:02:51.06 3.0 undecidable manual Pn 0.11 0
IV.LRP.EHZ. 2021-02-24T18:02:44.89 3.0 negative manual Pg 6.03 0
IV.RIBO.EHZ.01 2021-02-24T18:02:38.94 3.0 undecidable manual P 2.92 0
IV.RM33.EHZ. 2021-02-24T18:02:30.57 0.1 undecidable manual S 142 38.5281 50 0.12 94
IV.ARRO.EHZ. 2021-02-24T18:02:27.07 0.6 undecidable manual S 210 26.1516 50 -0.07 48
IV.MC2.EHZ. 2021-02-24T18:02:27.14 0.3 undecidable manual S 56 25.752 50 0.12 72
IT.MTCL.HGE. 2021-02-24T18:02:26.32 0.3 undecidable manual S 15 24.0537 113 -0.21 71
IV.CESI.HHZ. 2021-02-24T18:02:26.65 0.1 undecidable manual S 356 24.5532 112 -0.04 98
IV.LNSS.HHZ. 2021-02-24T18:02:25.74 0.3 undecidable manual S 155 22.1556 114 -0.18 72
IV.FEMA.HNE. 2021-02-24T18:02:25.99 0.3 undecidable manual S 27 22.2555 114 0.05 74
IV.NRCA.HHZ. 2021-02-24T18:02:24.07 0.1 undecidable manual S 70 16.3725 122 -0.06 99
IV.RM33.EHZ. 2021-02-24T18:02:24.81 0.1 undecidable manual P 142 38.5281 50 -0.16 93
IV.MOMA.HHZ. 2021-02-24T18:02:24.20 3.0 undecidable manual P 3.22 0
IV.MC2.EHZ. 2021-02-24T18:02:23.03 0.3 undecidable manual P 56 25.752 50 0.05 73
IV.LNSS.HHZ. 2021-02-24T18:02:22.23 0.1 undecidable manual P 155 22.1556 114 -0.12 97
IV.FEMA.HNE. 2021-02-24T18:02:22.50 0.3 undecidable manual P 27 22.2555 114 0.14 72
IV.GAVE.EHZ. 2021-02-24T18:02:22.56 0.1 undecidable manual S 194 10.4784 134 0.05 100
IV.CESI.HHZ. 2021-02-24T18:02:22.80 0.1 undecidable manual P 356 24.5532 112 0.01 98
IV.ARRO.EHZ. 2021-02-24T18:02:22.95 0.1 undecidable manual P 210 26.1516 50 -0.1 96
IT.MTCL.HGE. 2021-02-24T18:02:22.68 0.1 undecidable manual P 15 24.0537 113 -0.02 98
IV.NRCA.HHZ. 2021-02-24T18:02:21.41 0.1 undecidable manual P 70 16.3725 122 0.09 98
IV.GAVE.EHZ. 2021-02-24T18:02:20.67 0.1 undecidable manual P 194 10.4784 134 0.29 95
IV.COR1.EHZ. 2021-02-24T18:02:12.70 3.0 undecidable manual P -9.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.6 0.0005460807 0.1152 AML other m 2021-02-24T18:02:22.73
IV.GAVE.EHE. ML:1.6 0.00048699999999999997 0.16 AML other m 2021-02-24T18:02:23.17
IV.NRCA.HHN. ML:1.1 0.00011249999999999998 0.42 AML other m 2021-02-24T18:02:24.61
IV.NRCA.HHE. ML:1.2 0.0001455 0.12 AML other m 2021-02-24T18:02:24.72
IV.LNSS.HHE. ML:1.2 0.00009484999999999999 0.12 AML other m 2021-02-24T18:02:26.17
IV.LNSS.HHN. ML:1.0 0.0000702 0.42 AML other m 2021-02-24T18:02:26.60
IV.CESI.HHN. ML:0.9 0.000050577645000000005 0.1408 AML other m 2021-02-24T18:02:27.87
IV.CESI.HHE. ML:0.7 0.0000313 1.82 AML other m 2021-02-24T18:02:26.08
IV.GAVE.HNE. ML:1.6 0.00046709525 0.1536 AML other m 2021-02-24T18:02:23.16
IV.GAVE.HNN. ML:1.1 0.00016897170000000001 0.1024 AML other m 2021-02-24T18:02:22.73
IV.NRCA.HNE. ML:1.2 0.00015021033 0.1152 AML other m 2021-02-24T18:02:24.72
IV.NRCA.HNN. ML:1.1 0.00011390559999999999 0.384 AML other m 2021-02-24T18:02:24.14
IV.LNSS.HNE. ML:1.1 0.00009207452499999999 0.3712 AML other m 2021-02-24T18:02:26.17
IV.LNSS.HNN. ML:1.0 0.0000760395 0.2944 AML other m 2021-02-24T18:02:25.89
IV.CESI.HNE. ML:0.8 0.00004163899999999999 0.2944 AML other m 2021-02-24T18:02:26.00
IV.CESI.HNN. ML:1.0 0.00006309249999999999 0.1792 AML other m 2021-02-24T18:02:27.15
IV.ARRO.EHE. ML:0.4 0.000017473620000000003 0.1152 AML other m 2021-02-24T18:02:28.96
IV.ARRO.EHN. ML:0.7 0.000029316295 0.1664 AML other m 2021-02-24T18:02:28.83
IV.RM33.EHE. ML:0.9 0.000029743465000000002 0.3968 AML other m 2021-02-24T18:02:32.14
IV.RM33.EHN. ML:0.6 0.000016068396499999997 0.32 AML other m 2021-02-24T18:02:30.74
IV.RM33.HNE. ML:1.5 0.00011900869999999999 0.7168 AML other m 2021-02-24T18:02:31.51
IV.RM33.HNN. ML:1.5 0.000118566635 0.7936 AML other m 2021-02-24T18:02:31.42
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