INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 17-02-2019 and time 17:21:00 (UTC) in region 5 km E Valtopina (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km E Valtopina (PG), on

  • 17-02-2019 17:21:00 (UTC)
  • 17-02-2019 18:21:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.04, 12.81 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
Valtopina PG 5 1398 1398
Nocera Umbra PG 8 5839 7237
Serravalle di Chienti MC 12 1070 8307
Spello PG 13 8645 16952
Foligno PG 13 57155 74107
Sefro MC 16 422 74529
Assisi PG 16 28299 102828
Monte Cavallo MC 16 145 102973
Fiuminata MC 19 1402 104375
Trevi PG 19 8469 112844
Cannara PG 19 4305 117149
Muccia MC 20 915 118064
Sellano PG 20 1079 119143
Pieve Torina MC 20 1458 120601

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of Foligno (57155 inhabitants)
35 Km E of Perugia (166134 inhabitants)
55 Km N of Terni (111501 inhabitants)
84 Km NW of Teramo (54892 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
89 Km SE of Arezzo (99543 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
91 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
97 Km S of Pesaro (94582 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 1.0 2019-02-17
17:21:00
43.04 12.81 11 2019-02-17
17:38:57
Sala Sismica INGV-Roma 65631841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-17 17:21:00 ± 0.04
Latitude 43.04 ± 0.00
Longitude 12.81 ± 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 65631841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 305
Semi-minor axis of confidence ellipse (meter) 243
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 183
Circular confidence region, given by single value of horizontal uncertainty (meter) 310
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 65631841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-17 17:38:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HHE. 2019-02-17T17:21:12.16 0.3 undecidable manual S 217 0.2977 50 0.25 69
IV.NRCA.HHE. 2019-02-17T17:21:12.03 0.6 undecidable manual S 133 0.3049 50 -0.11 48
IV.SNTG.HHZ. 2019-02-17T17:21:09.98 0.3 undecidable manual S 24 0.232 50 0.01 73
IV.ATCC.EHZ. 2019-02-17T17:21:08.76 0.1 undecidable manual S 319 0.1889 117 0.06 98
IV.FDMO.HHZ. 2019-02-17T17:21:08.91 0.3 undecidable manual S 92 0.2014 50 -0.17 72
IV.MOMA.HHE. 2019-02-17T17:21:07.16 0.1 undecidable manual P 217 0.2977 50 0.05 96
IV.NRCA.HHE. 2019-02-17T17:21:07.11 0.1 undecidable manual P 133 0.3049 50 -0.13 95
IV.MML1.EHE. 2019-02-17T17:21:07.11 0.3 undecidable manual S 59 0.1367 125 0.16 73
IV.CSP1.EHZ. 2019-02-17T17:21:07.19 0.6 negative manual P 80 0.2914 50 0.19 47
IV.FOSV.EHE. 2019-02-17T17:21:06.04 0.1 undecidable manual P 352 0.2545 50 -0.33 92
IV.SNTG.HHZ. 2019-02-17T17:21:06.04 0.1 undecidable manual P 24 0.232 50 0.06 97
IV.FDMO.HHZ. 2019-02-17T17:21:05.47 0.1 undecidable manual P 92 0.2014 50 0 99
IV.CESI.HHZ. 2019-02-17T17:21:05.15 0.3 undecidable manual S 119 0.0782 141 -0.14 74
IV.ATCC.EHZ. 2019-02-17T17:21:05.31 0.1 undecidable manual P 319 0.1889 117 0.06 98
IV.ASSB.HHZ. 2019-02-17T17:21:05.97 0.3 undecidable manual S 270 0.1115 131 -0.23 72
IV.MML1.EHE. 2019-02-17T17:21:04.40 0.1 undecidable manual P 59 0.1367 125 0.16 97
IV.CESI.HHZ. 2019-02-17T17:21:03.36 0.1 undecidable manual P 119 0.0782 141 0.08 100
IV.ASSB.HHZ. 2019-02-17T17:21:03.84 0.3 undecidable manual P 270 0.1115 131 0.04 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:1 0.0001092 0.18 AML other m 2019-02-17T17:21:06.17
IV.ASSB.HHN. ML:1 9.28E-5 0.4 AML other m 2019-02-17T17:21:06.17
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