Earthquake with magnitude of ML 1.0 on date 09-02-2020 and time 05:07:34 (Italy) in region Pieve Santo Stefano (AR)

A magnitude ML 1.0 earthquake occured in region: Pieve Santo Stefano (AR), on

  • 09-02-2020 04:07:34 (UTC)
  • 09-02-2020 05:07:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.67, 12.04 at 10 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
Pieve Santo Stefano AR 0 3183 3183
Caprese Michelangelo AR 5 1426 4609
Chiusi della Verna AR 9 2023 6632
Badia Tedalda AR 13 1087 7719
Chitignano AR 13 899 8618
Sansepolcro AR 14 15884 24502
Anghiari AR 14 5638 30140
Verghereto FC 14 1907 32047
Casteldelci RN 17 407 32454
Castel Focognano AR 17 3149 35603
Subbiano AR 17 6331 41934
San Giustino PG 17 11297 53231
Bibbiena AR 18 12241 65472
Capolona AR 19 5438 70910
Citerna PG 20 3531 74441

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Arezzo (99543 inhabitants)
55 Km SW of Cesena (96758 inhabitants)
61 Km SW of Rimini (147750 inhabitants)
62 Km S of Forlì (117913 inhabitants)
64 Km E of Firenze (382808 inhabitants)
69 Km NW of Perugia (166134 inhabitants)
69 Km NE of Siena (53903 inhabitants)
70 Km E of Scandicci (50609 inhabitants)
70 Km S of Faenza (58541 inhabitants)
75 Km W of Pesaro (94582 inhabitants)
79 Km E of Prato (191150 inhabitants)
81 Km SE of Imola (69797 inhabitants)
81 Km W of Fano (60888 inhabitants)
84 Km S of Ravenna (159116 inhabitants)
95 Km E of Pistoia (90315 inhabitants)
96 Km NW of Foligno (57155 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 1.0 2020-02-09
04:07:34
43.67 12.04 10 2020-02-09
04:18:38
Sala Sismica INGV-Roma 76363541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-09 04:07:34 ± 0.05
Latitude 43.67 ± 0.00
Longitude 12.04 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76363541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 286
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 213
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.67449
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 76363541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-09 04:18:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NARO.HHZ. 2020-02-09T04:07:49.40 0.3 undecidable manual S 98 0.3948 50 0.01 71
IV.ATMI.HHZ. 2020-02-09T04:07:48.59 0.1 undecidable manual S 154 0.3732 50 -0.16 93
IV.ARVD.HHZ. 2020-02-09T04:07:48.60 0.1 undecidable manual P 104 0.6745 50 0.57 79
IV.ATPI.EHZ. 2020-02-09T04:07:47.77 0.3 undecidable manual S 130 0.3408 50 -0.02 72
IV.SFI.EHZ. 2020-02-09T04:07:45.92 0.3 undecidable manual S 329 0.2734 50 0.12 71
IV.FRON.EHZ. 2020-02-09T04:07:45.32 0.3 undecidable manual P 107 0.518 50 -0.05 69
IV.BADI.EHZ. 2020-02-09T04:07:43.73 0.3 undecidable manual S 137 0.2176 111 -0.13 72
IV.ATPI.EHZ. 2020-02-09T04:07:42.26 0.1 undecidable manual P 130 0.3408 50 -0.07 95
IV.ATMI.HHZ. 2020-02-09T04:07:42.96 0.3 undecidable manual P 154 0.3732 50 0.08 71
IV.NARO.HHZ. 2020-02-09T04:07:42.98 0.1 undecidable manual P 98 0.3948 50 -0.27 90
IV.PE3.EHZ. 2020-02-09T04:07:42.22 0.3 undecidable manual P 85 0.3301 50 0.07 71
IV.SFI.EHZ. 2020-02-09T04:07:41.13 0.3 undecidable manual P 329 0.2734 50 -0.05 72
IV.PARC.HHZ. 2020-02-09T04:07:41.21 0.1 undecidable manual S 98 0.1448 121 -0.13 97
IV.SSP9.EHZ. 2020-02-09T04:07:40.62 0.1 undecidable manual S 145 0.116 126 0.21 96
IV.CRE.HHZ. 2020-02-09T04:07:39.37 0.1 undecidable manual S 232 0.0818 136 -0.05 100
IV.BADI.EHZ. 2020-02-09T04:07:39.90 0.3 undecidable manual P 137 0.2176 111 -0.16 71
IV.ASQU.HHZ. 2020-02-09T04:07:39.97 0.1 undecidable manual P 305 0.2221 111 -0.19 95
IV.SSP9.EHZ. 2020-02-09T04:07:38.21 0.1 undecidable manual P 145 0.116 126 0.14 98
IV.PARC.HHZ. 2020-02-09T04:07:38.62 0.1 positive manual P 98 0.1448 121 0.01 100
IV.CRE.HHZ. 2020-02-09T04:07:37.61 0.1 positive manual P 232 0.0818 136 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHN. ML:1.6 0.0005815 0.16 AML other m 2020-02-09T04:07:39.62
IV.CRE.HHE. ML:1.5 0.000399 0.26 AML other m 2020-02-09T04:07:39.65
IV.SSP9.EHE. ML:0.9 9.595E-5 1.58 AML other m 2020-02-09T04:07:40.20
IV.SSP9.EHN. ML:0.9 9.14E-5 0.2 AML other m 2020-02-09T04:07:41.15
IV.PARC.HHN. ML:1.7 0.0004255 0.14 AML other m 2020-02-09T04:07:41.44
IV.PARC.HHE. ML:1.3 0.000191 0.2 AML other m 2020-02-09T04:07:41.59
IV.NARO.HHN. ML:1.1 3.935E-5 0.46 AML other m 2020-02-09T04:07:50.35
IV.NARO.HHE. ML:0.8 2.21E-5 1.28 AML other m 2020-02-09T04:07:50.90
IV.FRON.EHE. ML:1 1.795E-5 0.7 AML other m 2020-02-09T04:07:54.10
IV.FRON.EHN. ML:0.8 1.69E-5 0.46 AML other m 2020-02-09T04:07:55.58
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