INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.1 on date 16-02-2019 and time 18:54:03 (Italy) in region 4 km E Cerreto di Spoleto (PG)

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

  • 16-02-2019 17:54:03 (UTC)
  • 16-02-2019 18:54:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.84, 12.96 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
Cerreto di Spoleto PG 4 1075 1075
Sellano PG 7 1079 2154
Preci PG 8 724 2878
Vallo di Nera PG 11 364 3242
Norcia PG 12 4957 8199
Cascia PG 14 3217 11416
Poggiodomo PG 14 117 11533
Visso MC 15 1107 12640
Campello sul Clitunno PG 15 2442 15082
Sant'Anatolia di Narco PG 15 564 15646
Castelsantangelo sul Nera MC 17 281 15927
Scheggino PG 17 461 16388
Monte Cavallo MC 18 145 16533
Trevi PG 18 8469 25002
Ussita MC 19 444 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
56 Km SE of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.1 2019-02-16
17:54:03
42.84 12.96 11 2019-02-16
18:02:39
Sala Sismica INGV-Roma 65607681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-16 17:54:03 ± 0.05
Latitude 42.84 ± 0.00
Longitude 12.96 ± 0.00
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 65607681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 372
Semi-minor axis of confidence ellipse (meter) 164
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
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) 146
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37502
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 65607681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-16 18:02:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CROCE.HHZ. 2019-02-16T17:55:52.87 3.0 undecidable manual Pg 20.08 0
CH.BERNI.HHZ. 2019-02-16T17:55:50.72 3.0 undecidable manual Sn -3.96 0
GU.RORO.HHZ. 2019-02-16T17:55:47.03 3.0 undecidable manual Sn 1.09 0
IV.EUCT.HNZ. 2019-02-16T17:55:06.05 3.0 undecidable manual Pg 7.22 0
IV.NDIM.HNZ. 2019-02-16T17:54:48.94 3.0 undecidable manual Pg 5.22 0
IV.LPEL.HHZ. 2019-02-16T17:54:42.41 3.0 undecidable manual S -0.09 0
IT.ORP.HGZ. 2019-02-16T17:54:40.46 3.0 undecidable manual Pn -0.11 0
GU.CARD.HHZ. 2019-02-16T17:54:38.25 3.0 undecidable manual Pn -0.36 0
IV.RMP.HHZ. 2019-02-16T17:54:38.58 3.0 undecidable manual S -0.18 0
IV.ZCCA.HHZ. 2019-02-16T17:54:37.08 3.0 undecidable manual Pn -0.54 0
IT.VNF1.HGZ. 2019-02-16T17:54:32.42 3.0 positive manual P 1.96 0
IV.RM33.EHZ. 2019-02-16T17:54:17.07 0.3 undecidable manual S 150 0.375 50 0.27 68
IV.CSP1.EHZ. 2019-02-16T17:54:15.29 3.0 undecidable manual S -0.1 0
IV.FDMO.HHZ. 2019-02-16T17:54:12.11 0.1 undecidable manual S 24 0.2203 50 -0.09 97
IV.LNSS.HHZ. 2019-02-16T17:54:12.63 0.1 undecidable manual S 166 0.2401 50 -0.16 96
IV.RM33.EHZ. 2019-02-16T17:54:11.21 0.6 undecidable manual P 150 0.375 50 0.16 47
IV.GAVE.EHZ. 2019-02-16T17:54:10.14 0.1 undecidable manual S 200 0.152 123 -0.04 100
IV.CESI.HHZ. 2019-02-16T17:54:10.89 0.1 undecidable manual S 346 0.1745 50 0.04 99
IV.SNTG.HHZ. 2019-02-16T17:54:09.80 3.0 undecidable manual P -2.27 0
IV.LNSS.HHZ. 2019-02-16T17:54:08.61 0.1 undecidable manual P 166 0.2401 50 -0.12 97
IV.NRCA.HHZ. 2019-02-16T17:54:08.82 0.1 undecidable manual S 91 0.1106 132 -0.07 100
IV.FDMO.HHZ. 2019-02-16T17:54:08.38 0.1 undecidable manual P 24 0.2203 50 -0.01 99
IV.GAVE.EHZ. 2019-02-16T17:54:07.26 0.1 positive manual P 200 0.152 123 0.04 100
IV.CESI.HHZ. 2019-02-16T17:54:07.64 0.1 undecidable manual P 346 0.1745 50 0.03 100
IV.NRCA.HHZ. 2019-02-16T17:54:06.58 0.1 negative manual P 91 0.1106 132 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1 0.00011950155 0.1024 AML other m 2019-02-16T17:54:10.15
IV.NRCA.HHN. ML:1.1 0.00013344865 0.1408 AML other m 2019-02-16T17:54:08.86
IV.NRCA.HNE. ML:1.1 0.00012990246 0.3456 AML other m 2019-02-16T17:54:09.80
IV.NRCA.HNN. ML:1.2 0.0001515829 0.6656 AML other m 2019-02-16T17:54:06.12
IV.GAVE.EHE. ML:1.2 0.0001270355 0.1792 AML other m 2019-02-16T17:54:10.28
IV.GAVE.EHN. ML:1 7.62998E-5 0.1408 AML other m 2019-02-16T17:54:10.48
IV.GAVE.HNE. ML:1.2 0.00013839255 0.1664 AML other m 2019-02-16T17:54:10.20
IV.GAVE.HNN. ML:1.3 0.0001709828 1.1648 AML other m 2019-02-16T17:54:06.52
IV.CESI.HHE. ML:0.6 3.20356E-5 0.1024 AML other m 2019-02-16T17:54:11.83
IV.CESI.HHN. ML:0.9 5.6263255E-5 0.0896 AML other m 2019-02-16T17:54:11.58
IV.FDMO.HHE. ML:1.2 8.8665245E-5 0.192 AML other m 2019-02-16T17:54:12.32
IV.FDMO.HHN. ML:1 5.927705E-5 0.1792 AML other m 2019-02-16T17:54:12.36
IV.LNSS.HHE. ML:1.2 8.6484465E-5 0.1408 AML other m 2019-02-16T17:54:12.95
IV.LNSS.HHN. ML:1.1 6.8112085E-5 0.2176 AML other m 2019-02-16T17:54:13.21
IV.LNSS.HNE. ML:1.2 9.66742E-5 0.6912 AML other m 2019-02-16T17:54:11.77
IV.LNSS.HNN. ML:1.3 0.00010184245 0.7168 AML other m 2019-02-16T17:54:20.28
IV.RM33.EHE. ML:1 2.8056005E-5 1.1392 AML other m 2019-02-16T17:54:23.19
IV.RM33.EHN. ML:0.7 1.44694965E-5 0.96 AML other m 2019-02-16T17:54:10.91
IV.RM33.HNE. ML:1.6 0.00012489185 1.0368 AML other m 2019-02-16T17:54:15.61
IV.RM33.HNN. ML:1.6 0.00011382081 0.8192 AML other m 2019-02-16T17:54:26.48
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download