Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 17-07-2019 and time 16:30:04 (Italy) in region 5 km E Citerna (PG)

A magnitude ML 0.4 earthquake occured in region: 5 km E Citerna (PG), on

  • 17-07-2019 14:30:04 (UTC)
  • 17-07-2019 16:30:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4980, 12.1830 at 4 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Citerna PG 5 3531 3531
San Giustino PG 6 11297 14828
Monterchi AR 6 1757 16585
Città di Castello PG 6 39913 56498
Monte Santa Maria Tiberina PG 7 1183 57681
Sansepolcro AR 9 15884 73565
Anghiari AR 11 5638 79203
Montone PG 19 1680 80883
Borgo Pace PU 20 606 81489

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Arezzo (99543 inhabitants)
47 Km NW of Perugia (166134 inhabitants)
70 Km SW of Rimini (147750 inhabitants)
71 Km S of Cesena (96758 inhabitants)
72 Km E of Siena (53903 inhabitants)
74 Km NW of Foligno (57155 inhabitants)
75 Km SW of Pesaro (94582 inhabitants)
78 Km W of Fano (60888 inhabitants)
80 Km E of Firenze (382808 inhabitants)
81 Km S of Forlì (117913 inhabitants)
86 Km E of Scandicci (50609 inhabitants)
91 Km S of Faenza (58541 inhabitants)
97 Km E of Prato (191150 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 0.4 2019-07-17
14:30:04		 43.4983 12.183 4 2019-07-17
14:48:33		 Sala Sismica INGV-Roma 70655791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-17 14:30:04 ± 0.16
Latitude 43.4983 ± 0.0063
Longitude 12.1830 ± 0.0074
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70655791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 670
Semi-minor axis of confidence ellipse (meter) 67
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 34
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.25811
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 70655791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-17 14:48:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2019-07-17T14:30:14.05 0.6 undecidable manual S 82 28.6491 98 -0.42 46
IV.ATLO.EHE. 2019-07-17T14:30:13.96 0.6 undecidable manual S 138 27.2505 98 -0.02 50
IV.ATVO.HHZ. 2019-07-17T14:30:12.40 0.6 undecidable manual S 126 22.1556 100 0.14 49
IV.ATPI.EHE. 2019-07-17T14:30:11.05 0.6 undecidable manual S 107 18.4704 102 0.07 51
IV.CRE.HHZ. 2019-07-17T14:30:09.09 0.3 positive manual P 306 22.8549 100 -0.01 76
IV.PIEI.HHZ. 2019-07-17T14:30:09.83 0.1 undecidable manual P 82 28.6491 98 -0.41 92
IV.ATVO.HHZ. 2019-07-17T14:30:09.04 0.1 undecidable manual P 126 22.1556 100 0.08 100
IV.ATLO.EHE. 2019-07-17T14:30:09.93 0.6 undecidable manual P 138 27.2505 98 -0.02 50
IV.ATPI.EHE. 2019-07-17T14:30:08.97 0.6 undecidable manual P 107 18.4704 102 0.75 42
IV.TB03.DH1.01 2019-07-17T14:30:08.82 0.3 undecidable manual P 120 21.2676 101 0.05 76
IV.BADI.EHZ. 2019-07-17T14:30:06.72 0.3 undecidable manual S 76 5.0949 128 0.04 78
IV.ATMC.EHE. 2019-07-17T14:30:06.61 0.3 undecidable manual S 172 5.7942 124 -0.26 74
IV.ATMC.EHE. 2019-07-17T14:30:05.87 0.6 undecidable manual P 172 5.7942 124 0.03 52
IV.BADI.EHZ. 2019-07-17T14:30:05.96 0.1 undecidable manual P 76 5.0949 128 0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHE. ML:0.0 0.00039992300000000005 0.0832 AML other m 2019-07-17T14:30:06.89
IV.BADI.EHN. ML:0.0 0.00065645525 0.1216 AML other m 2019-07-17T14:30:06.85
IV.ATVO.HHE. ML:0.4 0.0000186132 0.3968 AML other m 2019-07-17T14:30:15.11
IV.ATVO.HHN. ML:0.1 0.0000114107315 0.32 AML other m 2019-07-17T14:30:15.77
IV.CRE.HHE. ML:0.6 0.000026192445 0.096 AML other m 2019-07-17T14:30:14.96
IV.CRE.HHN. ML:0.8 0.000038660835 0.1152 AML other m 2019-07-17T14:30:11.23
IV.PIEI.HHE. ML:0.4 0.00001582611 0.1152 AML other m 2019-07-17T14:30:14.25
IV.PIEI.HHN. ML:0.3 0.0000088903705 0.1408 AML other m 2019-07-17T14:30:14.86
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download