Earthquake with magnitude of ML 0.3 on date 26-07-2020 and time 04:17:44 (Italy) in region 6 km NE Città di Castello (PG)

A magnitude ML 0.3 earthquake occured in region: 6 km NE Città di Castello (PG), on

  • 26-07-2020 02:17:44 (UTC)
  • 26-07-2020 04:17:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5, 12.3 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
Città di Castello PG 6 39913 39913
San Giustino PG 11 11297 51210
Apecchio PU 12 1882 53092
Monte Santa Maria Tiberina PG 13 1183 54275
Pietralunga PG 13 2111 56386
Citerna PG 15 3531 59917
Montone PG 15 1680 61597
Sansepolcro AR 15 15884 77481
Monterchi AR 15 1757 79238
Mercatello sul Metauro PU 17 1378 80616
Borgo Pace PU 18 606 81222

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Arezzo (99543 inhabitants)
44 Km N of Perugia (166134 inhabitants)
66 Km SW of Rimini (147750 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
69 Km NW of Foligno (57155 inhabitants)
70 Km SW of Fano (60888 inhabitants)
71 Km S of Cesena (96758 inhabitants)
80 Km E of Siena (53903 inhabitants)
83 Km S of Forlì (117913 inhabitants)
89 Km E of Firenze (382808 inhabitants)
94 Km SE of Faenza (58541 inhabitants)
94 Km E of Scandicci (50609 inhabitants)
99 Km W of Ancona (100861 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
Reviewed
Rev100
ML 0.3 2020-07-26
02:17:44
43.5 12.3 7 2020-07-26
02:44:33
Sala Sismica INGV-Roma 81351461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-26 02:17:44 ± 0.05
Latitude 43.50 ± 0.00
Longitude 12.30 ± 0.00
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81351461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 265
Semi-minor axis of confidence ellipse (meter) 111
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.04
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.16458
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 81351461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-26 02:44:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2020-07-26T02:17:49.87 0.6 undecidable manual S 145 0.1394 113 0 49
IV.ATPI.EHZ. 2020-07-26T02:17:48.18 0.6 undecidable manual S 121 0.089 123 0.04 49
IV.ATMI.HHZ. 2020-07-26T02:17:47.96 0.6 positive manual P 188 0.1646 110 0.04 49
IV.ATVO.HHZ. 2020-07-26T02:17:47.33 0.6 negative manual P 145 0.1394 113 -0.08 49
IV.PARC.HHZ. 2020-07-26T02:17:47.78 1.0 undecidable manual P 344 0.1574 110 0 25
IV.ATPI.EHZ. 2020-07-26T02:17:46.39 1.0 undecidable manual P 121 0.089 123 -0.02 25
IV.BADI.EHZ. 2020-07-26T02:17:46.76 0.6 undecidable manual S 288 0.0405 145 -0.04 50
IV.BADI.EHZ. 2020-07-26T02:17:45.66 0.1 negative manual P 288 0.0405 145 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.4 2.35E-5 0.64 AML other m 2020-07-26T02:17:50.44
IV.ATVO.HHE. ML:0.3 1.79E-5 0.64 AML other m 2020-07-26T02:17:50.73
IV.PARC.HHE. ML:0.2 1.605E-5 1.36 AML other m 2020-07-26T02:17:51.12
IV.PARC.HHN. ML:0.2 1.495E-5 0.3 AML other m 2020-07-26T02:17:51.81
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