INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.5 on date 13-02-2019 and time 12:44:28 (Italy) in region 4 km NE Anghiari (AR)

A magnitude ML 0.5 earthquake occured in region: 4 km NE Anghiari (AR), on

  • 13-02-2019 11:44:28 (UTC)
  • 13-02-2019 12:44:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.58, 12.08 at 8 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
Anghiari AR 4 5638 5638
Sansepolcro AR 5 15884 21522
San Giustino PG 8 11297 32819
Citerna PG 9 3531 36350
Monterchi AR 10 1757 38107
Caprese Michelangelo AR 11 1426 39533
Pieve Santo Stefano AR 11 3183 42716
Monte Santa Maria Tiberina PG 17 1183 43899
Subbiano AR 17 6331 50230
Badia Tedalda AR 17 1087 51317
Capolona AR 18 5438 56755
Chiusi della Verna AR 18 2023 58778
Città di Castello PG 18 39913 98691
Chitignano AR 19 899 99590
Borgo Pace PU 20 606 100196
Arezzo AR 20 99543 199739

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Arezzo (99543 inhabitants)
58 Km NW of Perugia (166134 inhabitants)
64 Km S of Cesena (96758 inhabitants)
67 Km E of Siena (53903 inhabitants)
67 Km SW of Rimini (147750 inhabitants)
70 Km E of Firenze (382808 inhabitants)
72 Km S of Forlì (117913 inhabitants)
75 Km E of Scandicci (50609 inhabitants)
77 Km W of Pesaro (94582 inhabitants)
81 Km S of Faenza (58541 inhabitants)
81 Km W of Fano (60888 inhabitants)
85 Km NW of Foligno (57155 inhabitants)
86 Km E of Prato (191150 inhabitants)
91 Km SE of Imola (69797 inhabitants)
94 Km S of Ravenna (159116 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 2019-02-13
11:44:28
43.57 12.08 8 2019-02-13
11:56:11
Sala Sismica INGV-Roma 65484301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-13 11:44:28 ± 0.11
Latitude 43.57 ± 0.00
Longitude 12.08 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65484301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 297
Semi-minor axis of confidence ellipse (meter) 134
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 168
Circular confidence region, given by single value of horizontal uncertainty (meter) 300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 10
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) 0.259
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 65484301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-13 11:56:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MILN.HNZ. 2019-02-13T11:45:27.73 3.0 undecidable manual Pg 20.35 0
IV.CADC.HNZ. 2019-02-13T11:45:23.39 3.0 undecidable manual Pg 22.18 0
GU.CIRO.HHZ. 2019-02-13T11:45:17.53 3.0 negative manual Pn -3.07 0
IV.ARVD.HHZ. 2019-02-13T11:45:14.38 3.0 undecidable manual Sg 13.57 0
IV.MSSA.HHZ. 2019-02-13T11:45:13.89 3.0 undecidable manual Pg 19.190001 0
IV.HAGA.HHZ. 2019-02-13T11:45:11.14 3.0 undecidable manual Sg 5.08 0
IV.RIBO.EHZ.01 2019-02-13T11:45:08.96 3.0 undecidable manual Sn -6.53 0
IV.FOSV.EHZ. 2019-02-13T11:45:05.93 3.0 undecidable manual Sg 7.33 0
IV.CORL.HHZ. 2019-02-13T11:44:53.02 3.0 undecidable manual Sn -7.52 0
GU.GSCL.HHZ. 2019-02-13T11:44:50.89 3.0 undecidable manual Pn 3.85 0
IV.IMOL.HNZ. 2019-02-13T11:44:49.42 3.0 positive manual Pg 9.83 0
IV.MUCR.HHZ. 2019-02-13T11:44:47.26 3.0 undecidable manual Sn -0.71 0
IV.FIR.HHZ. 2019-02-13T11:44:40.72 3.0 undecidable manual Pn 3.94 0
IV.CAFI.HHZ. 2019-02-13T11:44:38.63 0.3 undecidable manual S 199 0.259 105 -0.1 71
IV.FRON.EHZ. 2019-02-13T11:44:37.92 3.0 undecidable manual Pg 13.41 0
IV.PARC.HHZ. 2019-02-13T11:44:34.16 0.3 undecidable manual S 57 0.1367 116 -0.13 72
IV.BADI.EHZ. 2019-02-13T11:44:34.44 0.3 undecidable manual S 119 0.1358 116 0.17 71
IV.CAFI.HHZ. 2019-02-13T11:44:34.27 0.3 undecidable manual P 199 0.259 105 -0.11 71
IV.CRE.HHZ. 2019-02-13T11:44:33.22 0.3 undecidable manual S 295 0.1025 123 0.06 73
IV.BADI.EHZ. 2019-02-13T11:44:32.01 0.6 negative manual P 119 0.1358 116 0.21 47
IV.PARC.HHZ. 2019-02-13T11:44:31.77 0.1 undecidable manual P 57 0.1367 116 -0.04 98
IV.CRE.HHZ. 2019-02-13T11:44:31.22 0.1 positive manual P 295 0.1025 123 0.06 98
IV.VIVA.HHZ. 2019-02-13T11:44:31.79 3.0 undecidable manual Sn -1.87 0
IV.SSP9.EHZ. 2019-02-13T11:44:31.28 0.6 undecidable manual S 91 0.0378 151 -0.12 49
IV.SSP9.EHZ. 2019-02-13T11:44:30.16 0.1 undecidable manual P 91 0.0378 151 0.02 100
IV.MC2.EHZ. 2019-02-13T11:44:21.32 3.0 undecidable manual Pg 6.28 0
IV.ARVD.HHZ. 2019-02-13T11:44:20.64 3.0 undecidable manual Pn -2.43 0
IV.INTR.HHZ. 2019-02-13T11:44:19.02 3.0 undecidable manual Sn -2.27 0
IV.SALB.HHZ. 2019-02-13T11:44:08.00 3.0 undecidable manual Sg -2.73 0
IT.VNF1.HGZ. 2019-02-13T11:44:06.34 3.0 undecidable manual Sn -3.93 0
IV.CIGN.HHZ. 2019-02-13T11:44:01.36 3.0 undecidable manual Sn -3.2 0
IV.PAOL.HHZ. 2019-02-13T11:43:57.36 3.0 undecidable manual Sn 1.1 0
IV.PTRJ.HNZ. 2019-02-13T11:43:57.37 3.0 undecidable manual Sn -4.47 0
IV.VBKN.HHZ. 2019-02-13T11:43:51.23 3.0 positive manual Pg 3.85 0
IV.PTRJ.HNZ. 2019-02-13T11:43:49.32 3.0 positive manual Pg -0.62 0
IV.MSAG.HHZ. 2019-02-13T11:43:49.13 3.0 negative manual P -4.1 0
IV.MCRV.HHZ. 2019-02-13T11:43:47.99 3.0 undecidable manual Sn 2.83 0
IV.PAOL.HHZ. 2019-02-13T11:43:44.29 3.0 undecidable manual P -2.52 0
IV.VITU.HHZ. 2019-02-13T11:43:43.56 3.0 undecidable manual P -3.9 0
IV.SGTA.HHZ. 2019-02-13T11:43:41.56 3.0 undecidable manual P -2.31 0
IX.SNR3.HHZ.02 2019-02-13T11:43:40.20 3.0 positive manual Pn -0.26 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSP9.EHN. ML:0 0.000106661205 0.3008 AML other m 2019-02-13T11:44:32.95
IV.CRE.HHE. ML:0.6 5.0320535E-5 0.32 AML other m 2019-02-13T11:44:36.21
IV.CRE.HHN. ML:0.7 6.113593E-5 0.1408 AML other m 2019-02-13T11:44:33.24
IV.PARC.HHE. ML:0.5 3.436927E-5 0.4992 AML other m 2019-02-13T11:44:34.36
IV.PARC.HHN. ML:0.6 4.079376E-5 0.5824 AML other m 2019-02-13T11:44:35.48
IV.CAFI.HHE. ML:0.3 1.0917766E-5 1.4784 AML other m 2019-02-13T11:44:39.21
IV.CAFI.HHN. ML:0.6 1.852319E-5 0.16 AML other m 2019-02-13T11:44:39.24
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
Waveforms Seismic signals in full SEED format Download