Earthquake with magnitude of ML 0.9 on date 19-09-2021 and time 17:56:48 (Italy) in region Campello sul Clitunno (PG)

A magnitude ML 0.9 earthquake occured in region: Campello sul Clitunno (PG), on

  • 19-09-2021 15:56:48 (UTC)
  • 19-09-2021 17:56:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.822, 12.772 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
Campello sul Clitunno PG 1 2442 2442
Trevi PG 7 8469 10911
Castel Ritaldi PG 8 3278 14189
Vallo di Nera PG 9 364 14553
Spoleto PG 10 38218 52771
Sant'Anatolia di Narco PG 11 564 53335
Cerreto di Spoleto PG 12 1075 54410
Montefalco PG 13 5679 60089
Scheggino PG 13 461 60550
Sellano PG 15 1079 61629
Giano dell'Umbria PG 16 3846 65475
Foligno PG 16 57155 122630
Poggiodomo PG 18 117 122747
Bevagna PG 18 5081 127828

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of Foligno (57155 inhabitants)
31 Km NE of Terni (111501 inhabitants)
45 Km SE of Perugia (166134 inhabitants)
71 Km NE of Viterbo (67173 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
78 Km W of Teramo (54892 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 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 2021-09-19
15:56:48
42.8217 12.7718 10 2021-09-19
16:02:51
Sala Sismica INGV-Roma 95636251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-19 15:56:48 ± 0.06
Latitude 42.8217 ± 0.0036
Longitude 12.7718 ± 0.0049
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 95636251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 375
Semi-minor axis of confidence ellipse (meter) 262
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 307
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 14
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
Epicentral distance of station farthest from the epicenter (degree) 0.31566
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 95636251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-19 16:02:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAPR.HNZ. 2021-09-19T15:58:41.34 3.0 undecidable manual Sg 12.15 0
SI.ABSI.HHZ. 2021-09-19T15:58:35.14 3.0 undecidable manual Sn -7.52 0
IT.GNV.HGZ. 2021-09-19T15:58:34.86 3.0 undecidable manual Sg 11.62 0
IT.LNT.HGZ. 2021-09-19T15:58:30.47 3.0 undecidable manual Pg 13.14 0
ST.RONC.HNZ. 2021-09-19T15:58:29.54 3.0 undecidable manual Sn -0.41 0
IX.SCL3.EHZ.02 2021-09-19T15:58:24.24 3.0 undecidable manual Sg 8.69 0
IV.AGLI.HHZ. 2021-09-19T15:58:12.69 3.0 undecidable manual Sn -9.61 0
IV.SELL.HHZ. 2021-09-19T15:58:06.27 3.0 undecidable manual Pn 2.34 0
IV.VBKN.HHZ. 2021-09-19T15:58:02.80 3.0 undecidable manual Sg 1.93 0
SI.ABSI.HHZ. 2021-09-19T15:57:57.42 3.0 undecidable manual Pg 3.97 0
IV.IOCA.HHZ. 2021-09-19T15:57:57.84 3.0 undecidable manual Sg -0.62 0
IV.PAOL.HHZ. 2021-09-19T15:57:49.42 3.0 undecidable manual Sn -8.7 0
IV.SARZ.HHZ. 2021-09-19T15:57:45.50 3.0 positive manual Pn -0.31 0
IV.ZEN8.EHZ. 2021-09-19T15:57:44.12 3.0 undecidable manual Pg 2.44 0
IV.VBKN.HHZ. 2021-09-19T15:57:30.94 3.0 negative manual Pg 0.97 0
IV.SFI.EHZ. 2021-09-19T15:57:27.71 3.0 undecidable manual Sg -7.7 0
IV.COLB.HHZ. 2021-09-19T15:57:26.38 3.0 positive manual Pg -2.34 0
IV.CAVE.HHZ. 2021-09-19T15:57:23.22 3.0 undecidable manual Pn -8.02 0
IV.RNI2.HHZ. 2021-09-19T15:57:15.33 3.0 negative manual Pg -3.19 0
IV.TST02.HHZ. 2021-09-19T15:57:10.82 3.0 undecidable manual Pn -6.85 0
IV.APEC.HNZ. 2021-09-19T15:57:06.05 3.0 undecidable manual P -1.08 0
IV.COR1.EHZ. 2021-09-19T15:57:01.44 3.0 positive manual P -6.19 0
IV.FDMO.HHZ. 2021-09-19T15:57:00.32 0.6 undecidable manual S 47 0.3157 50 -0.02 49
IV.LNSS.HNZ. 2021-09-19T15:56:59.79 0.6 undecidable manual S 138 0.2941 50 0.06 49
IV.CESX.HHZ. 2021-09-19T15:56:58.68 0.6 undecidable manual S 213 0.2527 50 0.19 48
IV.NRCA.HHZ. 2021-09-19T15:56:58.75 0.6 undecidable manual S 87 0.2509 50 0.3 47
IV.CESI.HHZ. 2021-09-19T15:56:57.15 0.6 undecidable manual S 28 0.2077 114 0.1 50
IV.ASSB.HHZ. 2021-09-19T15:56:57.90 0.6 undecidable manual S 339 0.2356 50 -0.09 50
IV.MOMA.HHZ. 2021-09-19T15:56:55.25 0.6 undecidable manual S 263 0.1493 121 0.2 49
IV.FDMO.HHZ. 2021-09-19T15:56:55.34 0.1 undecidable manual P 47 0.3157 50 0.07 98
IV.LNSS.HNZ. 2021-09-19T15:56:54.74 0.1 undecidable manual P 138 0.2941 50 -0.17 96
IV.CESX.HHZ. 2021-09-19T15:56:54.23 0.1 undecidable manual P 213 0.2527 50 0.03 100
IV.ASSB.HHZ. 2021-09-19T15:56:53.85 1.0 positive manual P 339 0.2356 50 -0.06 25
IV.NRCA.HHZ. 2021-09-19T15:56:53.98 0.1 undecidable manual P 87 0.2509 50 -0.19 97
IV.CESI.HHZ. 2021-09-19T15:56:53.53 1.0 undecidable manual P 28 0.2077 114 0.17 25
IV.MOMA.HHZ. 2021-09-19T15:56:52.07 0.1 undecidable manual P 263 0.1493 121 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:0.8 6.105E-5 0.24 AML other m 2021-09-19T15:56:56.59
IV.CESI.HHN. ML:1 6.57E-5 1.42 AML other m 2021-09-19T15:56:58.17
IV.ASSB.HHN. ML:0.9 4.375E-5 1.58 AML other m 2021-09-19T15:56:58.12
IV.CESI.HHE. ML:0.9 5.215E-5 0.72 AML other m 2021-09-19T15:56:59.44
IV.NRCA.HHE. ML:0.8 3.745E-5 0.18 AML other m 2021-09-19T15:56:59.19
IV.MOMA.HHE. ML:0.8 5.53E-5 0.76 AML other m 2021-09-19T15:57:00.75
IV.NRCA.HHN. ML:0.9 3.92E-5 0.7 AML other m 2021-09-19T15:57:01.44
IV.ASSB.HHE. ML:0.8 3.265E-5 0.42 AML other m 2021-09-19T15:57:03.44
IV.MNTT.EHN. ML:2.3 0.00035 0.18 AML other m 2021-09-19T15:57:34.75
IV.MNTT.EHE. ML:2.8 0.000909 0.16 AML other m 2021-09-19T15:57:35.10
IV.APEC.HNE. ML:0 0.0029635 1.12 AML other m 2021-09-19T15:57:39.65
IV.APEC.HNN. ML:0 0.0043025 0.88 AML other m 2021-09-19T15:57:40.66
IX.SCL3.EHN.02 ML:0 0.000513 1.04 AML other m 2021-09-19T15:58:50.71
IX.SCL3.EHE.02 ML:0 0.0003175 0.1 AML other m 2021-09-19T15:58:52.35
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