Earthquake with magnitude of ML 0.9 on date 09-04-2021 and time 20:48:10 (Italy) in region 5 km W Badia Tedalda (AR)

A magnitude ML 0.9 earthquake occured in region: 5 km W Badia Tedalda (AR), on

  • 09-04-2021 18:48:10 (UTC)
  • 09-04-2021 20:48:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7070, 12.1210 at 11 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
Badia Tedalda AR 5 1087 1087
Pieve Santo Stefano AR 8 3183 4270
Casteldelci RN 10 407 4677
Caprese Michelangelo AR 13 1426 6103
Verghereto FC 14 1907 8010
Sestino AR 14 1355 9365
Chiusi della Verna AR 15 2023 11388
Borgo Pace PU 15 606 11994
Sansepolcro AR 15 15884 27878
Pennabilli RN 17 2869 30747
San Giustino PG 18 11297 42044
Mercatello sul Metauro PU 19 1378 43422
Sant'Agata Feltria RN 19 2151 45573
Anghiari AR 19 5638 51211
Carpegna PU 19 1674 52885
Chitignano AR 20 899 53784

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Arezzo (99543 inhabitants)
49 Km S of Cesena (96758 inhabitants)
53 Km SW of Rimini (147750 inhabitants)
58 Km S of Forlì (117913 inhabitants)
67 Km S of Faenza (58541 inhabitants)
68 Km W of Pesaro (94582 inhabitants)
70 Km E of Firenze (382808 inhabitants)
70 Km NW of Perugia (166134 inhabitants)
74 Km W of Fano (60888 inhabitants)
76 Km E of Scandicci (50609 inhabitants)
77 Km NE of Siena (53903 inhabitants)
79 Km SE of Imola (69797 inhabitants)
79 Km S of Ravenna (159116 inhabitants)
84 Km E of Prato (191150 inhabitants)
96 Km NW of Foligno (57155 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 0.9 2021-04-09
18:48:10
43.707 12.1212 11 2021-04-09
18:53:24
Sala Sismica INGV-Roma 88948991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-09 18:48:10 ± 0.06
Latitude 43.7070 ± 0.0045
Longitude 12.1212 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88948991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 476
Semi-minor axis of confidence ellipse (meter) 320
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 203
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47664
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:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 88948991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-09 18:53:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2021-04-09T18:48:25.38 3.0 undecidable manual P 1.7 0
IV.FRON.EHZ. 2021-04-09T18:48:20.93 1.0 positive manual P 113 52.9026 50 0.34 22
IV.LMD.HHZ. 2021-04-09T18:48:20.77 0.3 undecidable manual P 321 52.8027 50 0.21 67
IV.BADI.EHZ. 2021-04-09T18:48:19.90 0.6 undecidable manual S 156 24.0537 50 -0.04 49
IV.CAFI.HHZ. 2021-04-09T18:48:19.35 0.6 negative manual P 197 43.7229 50 0.18 46
IV.NARO.HHZ. 2021-04-09T18:48:18.24 0.3 undecidable manual P 106 38.3283 50 -0.11 71
IV.PIEI.HHZ. 2021-04-09T18:48:18.23 0.3 undecidable manual P 120 38.2284 50 -0.11 71
IV.SSP9.EHZ. 2021-04-09T18:48:17.56 0.6 undecidable manual S 177 14.7741 126 0.3 47
IV.CRE.HHZ. 2021-04-09T18:48:17.63 0.6 undecidable manual S 234 16.7721 122 -0.2 48
IV.SFI.EHZ. 2021-04-09T18:48:17.23 1.0 undecidable manual P 315 31.0467 50 0.01 24
IV.BADI.EHZ. 2021-04-09T18:48:16.10 0.1 negative manual P 156 24.0537 50 -0.04 98
IV.PARC.HHE. 2021-04-09T18:48:16.25 0.6 undecidable manual S 124 11.3775 133 -0.11 49
IV.ASQU.HHZ. 2021-04-09T18:48:16.65 0.6 positive manual P 291 28.3494 50 -0.16 47
IV.SSP9.EHZ. 2021-04-09T18:48:14.57 1.0 positive manual P 177 14.7741 126 -0.03 25
IV.PARC.HHE. 2021-04-09T18:48:14.11 0.1 undecidable manual P 124 11.3775 133 0.04 100
IV.CRE.HHZ. 2021-04-09T18:48:14.90 0.1 positive manual P 234 16.7721 122 -0.03 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHE. ML:0.8 0.00004755 0.46 AML other m 2021-04-09T18:48:17.87
IV.CRE.HHN. ML:0.9 0.00006500000000000001 0.2 AML other m 2021-04-09T18:48:18.39
IV.BADI.EHE. ML:1.0 0.0000674 1.74 AML other m 2021-04-09T18:48:20.10
IV.BADI.EHN. ML:1.0 0.00005485 1.18 AML other m 2021-04-09T18:48:20.72
IV.SFI.EHE. ML:0.9 0.0000337 0.48 AML other m 2021-04-09T18:48:21.15
IV.ASQU.HHE. ML:0.8 0.0000349 0.38 AML other m 2021-04-09T18:48:21.47
IV.ASQU.HHN. ML:0.8 0.00002785 0.38 AML other m 2021-04-09T18:48:21.50
IV.SFI.EHN. ML:0.9 0.000034 1.24 AML other m 2021-04-09T18:48:21.78
IV.PIEI.HHE. ML:1.2 0.00005335000000000001 0.12 AML other m 2021-04-09T18:48:24.23
IV.PIEI.HHN. ML:0.9 0.00002915 0.12 AML other m 2021-04-09T18:48:24.63
IV.NARO.HHN. ML:1.1 0.000045249999999999995 0.66 AML other m 2021-04-09T18:48:25.54
IV.NARO.HHE. ML:0.9 0.000030350000000000002 0.06 AML other m 2021-04-09T18:48:25.26
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download