Earthquake with magnitude of ML 0.4 on date 26-12-2019 and time 15:41:01 (UTC) in region 8 km SW Apecchio (PU)

A magnitude ML 0.4 earthquake occured in region: 8 km SW Apecchio (PU), on

  • 26-12-2019 15:41:01 (UTC)
  • 26-12-2019 16:41:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.52, 12.34 at 9 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
Apecchio PU 8 1882 1882
CittĂ  di Castello PG 10 39913 41795
Pietralunga PG 12 2111 43906
San Giustino PG 13 11297 55203
Mercatello sul Metauro PU 15 1378 56581
Borgo Pace PU 16 606 57187
Piobbico PU 16 2029 59216
Monte Santa Maria Tiberina PG 17 1183 60399
Sansepolcro AR 17 15884 76283
Montone PG 17 1680 77963
Sant'Angelo in Vado PU 18 4133 82096
Citerna PG 18 3531 85627
Monterchi AR 19 1757 87384

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Arezzo (99543 inhabitants)
46 Km N of Perugia (166134 inhabitants)
63 Km SW of Rimini (147750 inhabitants)
64 Km SW of Pesaro (94582 inhabitants)
66 Km SW of Fano (60888 inhabitants)
69 Km NW of Foligno (57155 inhabitants)
69 Km S of Cesena (96758 inhabitants)
82 Km SE of Forlì (117913 inhabitants)
84 Km E of Siena (53903 inhabitants)
91 Km E of Firenze (382808 inhabitants)
93 Km SE of Faenza (58541 inhabitants)
96 Km W of Ancona (100861 inhabitants)
97 Km E of Scandicci (50609 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 0.4 2019-12-26
15:41:01
43.52 12.34 9 2019-12-26
15:53:46
Sala Sismica INGV-Roma 74996911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-26 15:41:01 ± 0.15
Latitude 43.52 ± 0.00
Longitude 12.34 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74996911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 409
Semi-minor axis of confidence ellipse (meter) 48
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.20864
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 74996911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-26 15:53:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATLO.EHE. 2019-12-26T15:41:10.40 0.1 undecidable manual S 166 0.2086 110 -0.08 96
IV.ATBU.EHZ. 2019-12-26T15:41:09.16 0.1 undecidable manual S 105 0.1583 116 0.47 89
IV.ATVO.HHZ. 2019-12-26T15:41:08.33 0.1 undecidable manual S 160 0.1448 118 0.11 97
IV.TB01.DHN.01 2019-12-26T15:41:08.56 0.1 undecidable manual S 152 0.1538 117 0.03 98
IV.PARC.HHE. 2019-12-26T15:41:08.48 0.1 undecidable manual S 331 0.1493 117 0.1 97
IV.TB02.DHZ.01 2019-12-26T15:41:08.82 0.3 undecidable manual S 161 0.1565 116 0.21 71
IV.TB03.DHZ.01 2019-12-26T15:41:07.70 0.1 undecidable manual S 156 0.1277 121 0.05 98
IV.ATLO.EHE. 2019-12-26T15:41:07.10 0.3 undecidable manual P 166 0.2086 110 0.25 70
IV.PIEI.HHE. 2019-12-26T15:41:07.92 0.1 undecidable manual S 83 0.1439 118 -0.28 93
IV.ATPC.HHZ. 2019-12-26T15:41:06.52 0.1 undecidable manual S 113 0.0935 129 -0.07 98
IV.ATPI.EHZ. 2019-12-26T15:41:06.11 0.1 undecidable manual S 145 0.0818 133 -0.13 98
IV.TB02.DHZ.01 2019-12-26T15:41:05.31 0.3 undecidable manual P 161 0.1565 116 -0.47 67
IV.PIEI.HHE. 2019-12-26T15:41:05.95 0.3 undecidable manual P 83 0.1439 118 0.41 68
IV.ATVO.HHZ. 2019-12-26T15:41:05.55 0.1 undecidable manual P 160 0.1448 118 0 99
IV.ATBU.EHZ. 2019-12-26T15:41:05.58 0.1 undecidable manual P 105 0.1583 116 -0.25 94
IV.BADI.EHZ. 2019-12-26T15:41:05.86 0.1 undecidable manual S 263 0.0683 138 -0.02 100
IV.TB01.DHN.01 2019-12-26T15:41:05.64 0.3 undecidable manual P 152 0.1538 117 -0.09 73
IV.PARC.HHE. 2019-12-26T15:41:05.60 0.3 undecidable manual P 331 0.1493 117 -0.05 73
IV.TB03.DHZ.01 2019-12-26T15:41:05.22 0.1 undecidable manual P 156 0.1277 121 -0.01 99
IV.ATPI.EHZ. 2019-12-26T15:41:04.33 0.1 undecidable manual P 145 0.0818 133 -0.08 99
IV.ATPC.HHZ. 2019-12-26T15:41:04.51 0.1 undecidable manual P 113 0.0935 129 -0.1 98
IV.ATMC.. 2019-12-26T15:41:04.40 3.0 undecidable manual P 0
IV.BADI.EHZ. 2019-12-26T15:41:04.26 0.1 undecidable manual P 263 0.0683 138 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHE. ML:0.9 0.0001212783 0.1024 AML other m 2019-12-26T15:41:06.05
IV.BADI.EHN. ML:1 0.00017948835 0.1024 AML other m 2019-12-26T15:41:05.98
IV.ATPI.EHE. ML:0 1.6977335E-5 0.1408 AML other m 2019-12-26T15:41:06.19
IV.ATPI.EHN. ML:0.2 2.739951E-5 0.128 AML other m 2019-12-26T15:41:06.24
IV.ATVO.HHE. ML:0.4 2.2567055E-5 0.4352 AML other m 2019-12-26T15:41:08.71
IV.ATVO.HHN. ML:0.2 1.603073E-5 0.1664 AML other m 2019-12-26T15:41:08.60
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