Earthquake with magnitude of ML 0.4 on date 13-11-2021 and time 16:32:57 (Italy) in region 2 km SW Trevi (PG)

A magnitude ML 0.4 earthquake occured in region: 2 km SW Trevi (PG), on

  • 13-11-2021 15:32:57 (UTC)
  • 13-11-2021 16:32:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.862, 12.732 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Trevi PG 2 8469 8469
Campello sul Clitunno PG 6 2442 10911
Castel Ritaldi PG 6 3278 14189
Montefalco PG 7 5679 19868
Foligno PG 11 57155 77023
Bevagna PG 13 5081 82104
Giano dell'Umbria PG 13 3846 85950
Spoleto PG 14 38218 124168
Vallo di Nera PG 15 364 124532
Gualdo Cattaneo PG 15 6155 130687
Spello PG 15 8645 139332
Cerreto di Spoleto PG 16 1075 140407
Sellano PG 16 1079 141486
Sant'Anatolia di Narco PG 17 564 142050
Scheggino PG 18 461 142511
Cannara PG 19 4305 146816
Massa Martana PG 20 3770 150586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Foligno (57155 inhabitants)
34 Km N of Terni (111501 inhabitants)
39 Km SE of Perugia (166134 inhabitants)
71 Km NE of Viterbo (67173 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
83 Km W of Teramo (54892 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km SE of Arezzo (99543 inhabitants)
100 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.4 2021-11-13
15:32:57
42.8622 12.7323 11 2021-11-13
15:56:35
Sala Sismica INGV-Roma 97442811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-13 15:32:57 ± 0.05
Latitude 42.8622 ± 0.0036
Longitude 12.7323 ± 0.0037
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97442811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 470
Semi-minor axis of confidence ellipse (meter) 190
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 318
Circular confidence region, given by single value of horizontal uncertainty (meter) 470
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 203
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30577
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 97442811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-13 15:56:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
TV.GMB1.HHZ. 2021-11-13T15:34:41.71 3.0 undecidable manual Sn -3.53 0
IV.PCN.EHZ. 2021-11-13T15:34:31.17 3.0 undecidable manual Sg 10.3 0
IV.SGAL.EHZ. 2021-11-13T15:34:29.32 3.0 undecidable manual Sn 3.43 0
IV.SARZ.HHZ. 2021-11-13T15:34:24.48 3.0 undecidable manual Sn -2.91 0
IV.CAPR.HNZ. 2021-11-13T15:34:22.00 3.0 undecidable manual Sn -8.61 0
IV.TDS.HHZ. 2021-11-13T15:34:21.72 3.0 undecidable manual Sn -0.97 0
IV.ZEN8.EHZ. 2021-11-13T15:34:18.14 3.0 undecidable manual Sn -6.22 0
IV.FREG.EHZ. 2021-11-13T15:34:14.65 3.0 undecidable manual Sn -9.99 0
CH.BERNI.HHZ. 2021-11-13T15:34:02.80 3.0 positive manual Pg 10.21 0
GU.GSCL.HHZ. 2021-11-13T15:34:02.08 3.0 undecidable manual Sn 2.94 0
MN.BNI.HHZ. 2021-11-13T15:33:59.87 3.0 positive manual Pn -0.95 0
IV.MONC.HHZ. 2021-11-13T15:33:58.03 3.0 positive manual Pn 7 0
IV.CDRU.HNZ. 2021-11-13T15:33:56.00 3.0 undecidable manual Sn 0.39 0
IX.CMP3.EHZ.02 2021-11-13T15:33:54.69 3.0 undecidable manual Sn 4.52 0
IV.SGAL.EHZ. 2021-11-13T15:33:54.70 3.0 undecidable manual Pg 13.55 0
IV.PIPA.HHZ. 2021-11-13T15:33:50.58 3.0 undecidable manual Pn 6 0
IV.MDI.HHZ. 2021-11-13T15:33:47.62 3.0 undecidable manual Pn 1.21 0
IV.CET2.HHZ. 2021-11-13T15:33:46.34 3.0 positive manual Pg 8.46 0
IX.RSF3.HHZ.02 2021-11-13T15:33:45.95 3.0 undecidable manual Sn -1.08 0
IV.VTIR.HHZ. 2021-11-13T15:33:40.36 3.0 undecidable manual Sn 0.64 0
IV.PZUN.HHZ. 2021-11-13T15:33:40.08 3.0 positive manual Pg 13.28 0
IV.VBKN.HHZ. 2021-11-13T15:33:37.10 3.0 undecidable manual Sn -2.28 0
IV.CDRU.HNZ. 2021-11-13T15:33:29.53 3.0 undecidable manual Pn 5.39 0
OT.OT17.EHZ. 2021-11-13T15:33:27.91 3.0 positive manual Pg 10.8 0
IT.FIE.HGZ. 2021-11-13T15:33:22.84 3.0 positive manual Pg 6.25 0
IV.MTMR.EHZ. 2021-11-13T15:33:19.18 3.0 negative manual Pn 0.87 0
IV.CAFE.HNZ. 2021-11-13T15:33:18.89 3.0 undecidable manual Pn -0.47 0
IV.BARO.EHZ. 2021-11-13T15:33:15.20 3.0 undecidable manual P 0
IV.SEF1.HNZ. 2021-11-13T15:33:14.09 3.0 undecidable manual P 0
IV.OVO.HHZ. 2021-11-13T15:33:11.71 3.0 positive manual Pn -3.12 0
IV.PE3.EHZ. 2021-11-13T15:33:10.84 3.0 positive manual Pn -0.51 0
IV.MML1.HNZ. 2021-11-13T15:33:09.51 0.3 undecidable manual S 35 0.3058 50 -0.01 72
IV.CASP.HNZ. 2021-11-13T15:33:08.69 3.0 undecidable manual Pn -2.74 0
IV.ASSB.HHZ. 2021-11-13T15:33:06.02 0.3 undecidable manual S 343 0.188 50 -0.01 74
IV.CESI.HHZ. 2021-11-13T15:33:06.05 0.3 undecidable manual S 41 0.1907 50 -0.04 74
IV.MML1.HNZ. 2021-11-13T15:33:04.46 0.6 undecidable manual P 35 0.3058 50 -0.19 47
IV.MOMA.HHZ. 2021-11-13T15:33:04.36 0.3 undecidable manual S 244 0.1322 50 -0.02 75
IV.CESI.HHZ. 2021-11-13T15:33:02.79 0.1 undecidable manual P 41 0.1907 50 0.12 97
IV.ASSB.HHZ. 2021-11-13T15:33:02.67 0.1 undecidable manual P 343 0.188 50 0.04 98
IV.NRCA.HHZ. 2021-11-13T15:33:01.18 3.0 undecidable manual Pn -1.41 0
IV.MOMA.HHZ. 2021-11-13T15:33:01.67 0.1 undecidable manual P 244 0.1322 50 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:0.6 3.2739825E-5 0.1408 AML other m 2021-11-13T15:33:05.77
IV.MOMA.HHN. ML:0.5 3.042315E-5 0.1152 AML other m 2021-11-13T15:33:04.90
IV.ASSB.HHE. ML:0.2 1.02541275E-5 0.192 AML other m 2021-11-13T15:33:06.34
IV.ASSB.HHN. ML:0.3 1.3677217E-5 0.2944 AML other m 2021-11-13T15:33:06.57
IV.CESI.HHE. ML:0.2 1.0555874E-5 0.1024 AML other m 2021-11-13T15:33:06.50
IV.CESI.HHN. ML:0.3 1.62595615E-5 0.2176 AML other m 2021-11-13T15:33:06.14
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