INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.1 on date 21-02-2019 and time 11:20:25 (Italy) in region 6 km SE Gubbio (PG)

A magnitude ML 1.1 earthquake occured in region: 6 km SE Gubbio (PG), on

  • 21-02-2019 10:20:25 (UTC)
  • 21-02-2019 11:20:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.31, 12.61 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
Gubbio PG 6 32216 32216
Costacciaro PG 10 1216 33432
Sigillo PG 11 2404 35836
Scheggia e Pascelupo PG 12 1393 37229
Fossato di Vico PG 13 2840 40069
Valfabbrica PG 16 3389 43458
Gualdo Tadino PG 17 15208 58666
Cantiano PU 19 2245 60911

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Perugia (166134 inhabitants)
40 Km N of Foligno (57155 inhabitants)
61 Km E of Arezzo (99543 inhabitants)
68 Km SW of Fano (60888 inhabitants)
72 Km SW of Pesaro (94582 inhabitants)
81 Km W of Ancona (100861 inhabitants)
83 Km N of Terni (111501 inhabitants)
84 Km S of Rimini (147750 inhabitants)
97 Km SE of Cesena (96758 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 2019-02-21
10:20:25
43.31 12.61 11 2019-02-21
10:28:52
Sala Sismica INGV-Roma 65758351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-21 10:20:25 ± 0.04
Latitude 43.31 ± 0.00
Longitude 12.61 ± 0.00
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65758351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
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 22
Number of defining phases 16
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) 0.2671
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 65758351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-21 10:28:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2019-02-21T10:21:05.76 3.0 undecidable manual S 0.12 0
IV.LNSS.HHZ. 2019-02-21T10:20:50.52 3.0 undecidable manual S -0.24 0
IV.ASSB.HHZ. 2019-02-21T10:20:36.07 0.3 undecidable manual S 172 0.2671 90 0 73
IV.ATPI.EHZ. 2019-02-21T10:20:34.35 0.6 undecidable manual S 314 0.2077 90 0.03 49
IV.ATTE.HHE. 2019-02-21T10:20:34.15 0.6 undecidable manual S 240 0.2149 90 -0.41 46
IV.SSFR.HHZ. 2019-02-21T10:20:33.39 0.3 undecidable manual S 44 0.1808 90 -0.13 72
IV.EL6.EHZ. 2019-02-21T10:20:33.40 3.0 undecidable manual P 0.65 0
IV.MPAG.EHZ. 2019-02-21T10:20:33.30 3.0 undecidable manual P 0.08 0
IV.ATVO.HHZ. 2019-02-21T10:20:32.80 0.3 undecidable manual S 297 0.1646 90 -0.26 71
IV.ASSB.HHZ. 2019-02-21T10:20:31.70 0.1 undecidable manual P 172 0.2671 90 0 97
IV.FOSV.EHZ. 2019-02-21T10:20:31.34 0.3 undecidable manual S 96 0.1115 105 -0.14 72
IV.PIEI.HHZ. 2019-02-21T10:20:31.14 3.0 negative manual P -0.26 0
IV.FRON.EHZ. 2019-02-21T10:20:30.99 3.0 undecidable manual P -0.18 0
IV.ATTE.HHE. 2019-02-21T10:20:30.90 0.1 undecidable manual P 240 0.2149 90 0.08 96
IV.ATFO.HHZ. 2019-02-21T10:20:30.24 0.3 undecidable manual S 336 0.0657 135 -0.08 75
IV.MURB.HHZ. 2019-02-21T10:20:30.60 0.6 undecidable manual S 234 0.0755 128 0.07 50
IV.SSFR.HHZ. 2019-02-21T10:20:30.29 0.1 undecidable manual P 44 0.1808 90 0.07 98
IV.ATPI.EHZ. 2019-02-21T10:20:30.73 0.1 undecidable manual P 314 0.2077 90 0.05 97
IV.FOSV.EHZ. 2019-02-21T10:20:29.10 0.1 undecidable manual P 96 0.1115 105 0.06 100
IV.ATVO.HHZ. 2019-02-21T10:20:29.98 0.1 undecidable manual P 297 0.1646 90 0.03 98
IV.ATFO.HHZ. 2019-02-21T10:20:28.48 0.1 negative manual P 336 0.0657 135 0.11 99
IV.MURB.HHZ. 2019-02-21T10:20:28.66 0.1 undecidable manual P 234 0.0755 128 0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHN. ML:1.2 0.00010185 0.68 AML other m 2019-02-21T10:20:35.58
IV.ATFO.HHE. ML:1.1 0.000172 1.22 AML other m 2019-02-21T10:20:30.36
IV.MURB.HHN. ML:1.5 0.0003955 0.58 AML other m 2019-02-21T10:20:30.68
IV.MURB.HHE. ML:1.4 0.0002995 0.38 AML other m 2019-02-21T10:20:31.46
IV.FOSV.EHN. ML:0.9 7.85E-5 0.36 AML other m 2019-02-21T10:20:31.61
IV.FOSV.EHE. ML:0.6 4.425E-5 0.44 AML other m 2019-02-21T10:20:31.47
IV.ATVO.HHN. ML:0.9 6.095E-5 1.62 AML other m 2019-02-21T10:20:32.14
IV.ATVO.HHE. ML:1 6.825E-5 1.68 AML other m 2019-02-21T10:20:32.14
IV.SSFR.HHN. ML:1.6 0.000288 1.32 AML other m 2019-02-21T10:20:33.00
IV.SSFR.HHE. ML:1.7 0.000352 0.18 AML other m 2019-02-21T10:20:34.67
IV.FRON.EHE. ML:1.1 7.23E-5 1.34 AML other m 2019-02-21T10:20:35.76
IV.SSFR.HNN. ML:1.6 0.000457 1.16 AML other m 2019-02-21T10:20:42.04
IV.ATFO.HHN. ML:1.1 0.0001675 0.24 AML other m 2019-02-21T10:20:30.35
IV.MURB.HNE. ML:1.3 0.000233381725 0.2496 AML other m 2019-02-21T10:20:32.15
IV.MURB.HNN. ML:1.4 0.0003328442 0.32 AML other m 2019-02-21T10:20:31.68
IV.SSFR.HNE. ML:1.8 0.0004870515 2.208 AML other m 2019-02-21T10:20:34.67
IV.ATPI.EHE. ML:0.6 2.676797E-5 0.2816 AML other m 2019-02-21T10:20:34.47
IV.ATPI.EHN. ML:0.4 1.55704555E-5 0.16 AML other m 2019-02-21T10:20:34.83
IV.PIEI.HHE. ML:0.9 4.63460495E-5 0.0832 AML other m 2019-02-21T10:20:36.21
IV.PIEI.HHN. ML:0.8 3.2633905E-5 0.1856 AML other m 2019-02-21T10:20:36.14
IV.MPAG.EHE. ML:0.6 1.5318325E-5 0.1792 AML other m 2019-02-21T10:20:39.83
IV.MPAG.EHN. ML:0.4 1.1069543E-5 0.2368 AML other m 2019-02-21T10:20:38.61
IV.EL6.EHE. ML:1.1 4.1839925E-5 0.224 AML other m 2019-02-21T10:20:39.48
IV.EL6.EHN. ML:1.1 4.563123E-5 0.16 AML other m 2019-02-21T10:20:39.98
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