INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.5 on date 12-02-2019 and time 19:55:02 (Italy) in region 6 km N Pietralunga (PG)

A magnitude ML 0.5 earthquake occured in region: 6 km N Pietralunga (PG), on

  • 12-02-2019 18:55:02 (UTC)
  • 12-02-2019 19:55:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5, 12.45 at 6 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
Pietralunga PG 6 2111 2111
Apecchio PU 7 1882 3993
Piobbico PU 11 2029 6022
Cantiano PU 15 2245 8267
Cagli PU 17 8731 16998
Città di Castello PG 18 39913 56911
Montone PG 18 1680 58591
Sant'Angelo in Vado PU 19 4133 62724
Gubbio PG 19 32216 94940
Mercatello sul Metauro PU 19 1378 96318
Urbania PU 20 7099 103417

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km N of Perugia (166134 inhabitants)
46 Km E of Arezzo (99543 inhabitants)
59 Km SW of Pesaro (94582 inhabitants)
60 Km SW of Fano (60888 inhabitants)
63 Km S of Rimini (147750 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
73 Km S of Cesena (96758 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
87 Km W of Ancona (100861 inhabitants)
93 Km E of Siena (53903 inhabitants)
99 Km SE of Faenza (58541 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 0.5 2019-02-12
18:55:02
43.5 12.45 6 2019-02-12
19:00:53
Sala Sismica INGV-Roma 65449031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-12 18:55:02 ± 0.11
Latitude 43.50 ± 0.00
Longitude 12.45 ± 0.00
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65449031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 280
Semi-minor axis of confidence ellipse (meter) 89
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 18
Circular confidence region, given by single value of horizontal uncertainty (meter) 280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.25811
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:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 65449031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-12 19:00:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HNZ. 2019-02-12T18:55:11.96 0.1 undecidable manual S 167 0.241 102 0.2 96
IV.PARC.HHZ. 2019-02-12T18:55:11.03 0.1 undecidable manual S 314 0.2149 104 0.25 96
IV.SSFR.HHZ. 2019-02-12T18:55:11.96 0.3 undecidable manual S 104 0.2473 102 -0.05 74
IV.FRON.EHZ. 2019-02-12T18:55:10.25 0.1 undecidable manual S 84 0.1996 105 0.05 100
IV.SSFR.HHZ. 2019-02-12T18:55:08.15 0.3 undecidable manual P 104 0.2473 102 0.26 71
IV.NARO.HHZ. 2019-02-12T18:55:08.19 0.3 undecidable manual S 40 0.1457 110 -0.05 76
IV.BADI.EHZ. 2019-02-12T18:55:08.54 0.1 undecidable manual S 274 0.1502 109 0.14 99
IV.MPAG.EHZ. 2019-02-12T18:55:07.60 1.0 undecidable manual P 60 0.2581 102 -0.52 22
IV.ATVO.HHZ. 2019-02-12T18:55:07.36 0.3 undecidable manual S 196 0.1205 114 0.03 76
IV.FRON.EHZ. 2019-02-12T18:55:07.28 0.6 undecidable manual P 84 0.1996 105 0.44 46
IV.MURB.HNZ. 2019-02-12T18:55:07.21 1.0 undecidable manual P 167 0.241 102 -0.53 22
IV.PARC.HHZ. 2019-02-12T18:55:07.04 0.1 undecidable manual P 314 0.2149 104 -0.14 98
IV.ATVO.HHZ. 2019-02-12T18:55:05.00 0.6 positive manual P 196 0.1205 114 -0.18 49
IV.ATPI.EHZ. 2019-02-12T18:55:05.20 0.3 undecidable manual S 217 0.0594 132 -0.12 76
IV.NARO.HHZ. 2019-02-12T18:55:05.51 0.1 undecidable manual P 40 0.1457 110 -0.2 98
IV.BADI.EHZ. 2019-02-12T18:55:05.60 0.3 negative manual P 274 0.1502 109 -0.2 73
IV.APEC.HHZ. 2019-02-12T18:55:05.55 0.3 undecidable manual S 339 0.0639 129 0.09 76
IV.APEC.HHZ. 2019-02-12T18:55:04.08 0.3 undecidable manual P 339 0.0639 129 -0.02 77
IV.ATPI.EHZ. 2019-02-12T18:55:03.83 0.6 positive manual P 217 0.0594 132 -0.19 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHE. ML:0 0.000128415815 0.1792 AML other m 2019-02-12T18:55:05.36
IV.ATPI.EHN. ML:0 0.00014310925 0.1536 AML other m 2019-02-12T18:55:05.29
IV.APEC.HNE. ML:0 0.000671716 0.7296 AML other m 2019-02-12T18:55:06.20
IV.APEC.HNN. ML:0 0.0006952549 0.768 AML other m 2019-02-12T18:55:03.49
IV.APEC.HHE. ML:0 5.202757E-5 0.384 AML other m 2019-02-12T18:55:06.94
IV.APEC.HHN. ML:0 7.9439665E-5 0.3072 AML other m 2019-02-12T18:55:09.52
IV.ATVO.HHE. ML:0.5 3.510145E-5 0.1664 AML other m 2019-02-12T18:55:08.06
IV.ATVO.HHN. ML:0.5 3.2918015E-5 0.2816 AML other m 2019-02-12T18:55:07.57
IV.BADI.EHE. ML:0.5 3.2122315E-5 0.1408 AML other m 2019-02-12T18:55:10.05
IV.BADI.EHN. ML:0.6 3.911178E-5 0.1408 AML other m 2019-02-12T18:55:09.69
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