Earthquake with magnitude of ML 1.3 on date 27-09-2020 and time 03:37:01 (Italy) in region 8 km NW Chiusi della Verna (AR)

A magnitude ML 1.3 earthquake occured in region: 8 km NW Chiusi della Verna (AR), on

  • 27-09-2020 01:37:01 (UTC)
  • 27-09-2020 03:37:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7690, 11.9060 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Chiusi della Verna AR 8 2023 2023
Verghereto FC 9 1907 3930
Bibbiena AR 11 12241 16171
Bagno di Romagna FC 12 6026 22197
Chitignano AR 12 899 23096
Poppi AR 12 6160 29256
Castel Focognano AR 14 3149 32405
Pratovecchio Stia AR 15 5845 38250
Caprese Michelangelo AR 15 1426 39676
Ortignano Raggiolo AR 16 878 40554
Pieve Santo Stefano AR 16 3183 43737
Castel San Niccolò AR 16 2707 46444
Santa Sofia FC 20 4136 50580

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Arezzo (99543 inhabitants)
49 Km SW of Cesena (96758 inhabitants)
52 Km S of Forlì (117913 inhabitants)
52 Km E of Firenze (382808 inhabitants)
58 Km S of Faenza (58541 inhabitants)
58 Km E of Scandicci (50609 inhabitants)
62 Km SW of Rimini (147750 inhabitants)
66 Km E of Prato (191150 inhabitants)
67 Km S of Imola (69797 inhabitants)
68 Km NE of Siena (53903 inhabitants)
76 Km SW of Ravenna (159116 inhabitants)
81 Km E of Pistoia (90315 inhabitants)
82 Km W of Pesaro (94582 inhabitants)
83 Km NW of Perugia (166134 inhabitants)
90 Km W of Fano (60888 inhabitants)
93 Km SE of Bologna (386663 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
Bulletin
Rev1000
ML 1.3 2020-09-27
01:37:01
43.7688 11.9063 14 2021-02-26
14:56:01
Bollettino Sismico Italiano INGV 84180361
Reviewed
Rev100
ML 1.6 2020-09-27
01:37:01
43.778 11.9128 18 2020-09-27
01:42:01
Sala Sismica INGV-Roma 83286141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-27 01:37:01 ± 0.1
Latitude 43.7688 ± 0.0054
Longitude 11.9063 ± 0.0075
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84180361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 580
Semi-minor axis of confidence ellipse (meter) 561
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 36
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53959
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 84180361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 09:21:36

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 83286141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-27 01:42:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GSCL.HHZ. 2020-09-27T01:37:39.56 3.0 undecidable manual S 0.07 0
IV.SACS.HHZ. 2020-09-27T01:37:20.32 3.0 undecidable manual P 0.49 0
IV.ATMI.HHZ. 2020-09-27T01:37:19.67 0.6 undecidable manual S 149 56.2992 94 0.35 44
IV.ATMC.EHE. 2020-09-27T01:37:15.55 0.6 undecidable manual S 147 42.5241 95 -0.09 47
IV.BADI.EHE. 2020-09-27T01:37:14.90 0.3 undecidable manual S 137 39.5271 96 0.04 73
IV.VISG.HHZ. 2020-09-27T01:37:13.04 1.0 undecidable manual P 321 59.8956 93 0.57 21
IV.RUFI.EHZ. 2020-09-27T01:37:12.78 0.6 undecidable manual S 284 32.6451 98 -0.26 47
IV.CSNT.HHZ. 2020-09-27T01:37:12.81 1.0 undecidable manual P 237 59.3961 93 0.42 22
IV.SSP9.EHZ. 2020-09-27T01:37:12.00 0.6 undecidable manual S 140 28.1496 100 0.14 49
IV.PARC.HHZ. 2020-09-27T01:37:12.08 0.6 undecidable manual S 116 29.8479 99 -0.2 47
IV.SEI.HHZ. 2020-09-27T01:37:12.12 1.0 undecidable manual P 306 54.0015 94 0.56 21
IV.ATMI.HHZ. 2020-09-27T01:37:12.35 0.6 undecidable manual P 149 56.2992 94 0.43 43
IV.BRIS.HHN. 2020-09-27T01:37:11.50 0.6 undecidable manual P 348 51.7038 94 0.28 45
IV.RINC.HHZ. 2020-09-27T01:37:11.50 0.6 undecidable manual S 299 27.2505 101 -0.12 49
IV.RONT.HHZ. 2020-09-27T01:37:10.95 0.6 undecidable manual P 304 45.3213 95 0.72 40
IV.ATMC.EHE. 2020-09-27T01:37:09.60 0.1 undecidable manual P 147 42.5241 95 -0.19 92
IV.BADI.EHE. 2020-09-27T01:37:09.44 0.6 undecidable manual P 137 39.5271 96 0.1 48
IV.SFI.EHZ. 2020-09-27T01:37:08.61 0.6 undecidable manual S 343 15.7731 117 -0.09 50
IV.CPGN.EHZ. 2020-09-27T01:37:08.62 0.3 undecidable manual P 84 33.3444 98 0.22 71
IV.RUFI.EHZ. 2020-09-27T01:37:08.01 0.1 undecidable manual P 284 32.6451 98 -0.28 93
IV.RINC.HHZ. 2020-09-27T01:37:07.31 0.1 undecidable manual P 299 27.2505 101 -0.16 96
IV.ASQU.HHZ. 2020-09-27T01:37:07.76 0.6 undecidable manual S 288 9.879 135 0.34 47
IV.SSP9.EHZ. 2020-09-27T01:37:07.33 0.6 undecidable manual P 140 28.1496 100 -0.28 47
IV.PARC.HHZ. 2020-09-27T01:37:07.48 0.1 undecidable manual P 116 29.8479 99 -0.38 91
IV.SFI.EHZ. 2020-09-27T01:37:05.68 0.1 negative manual P 343 15.7731 117 -0.11 100
IV.ASQU.HHZ. 2020-09-27T01:37:05.15 0.1 negative manual P 288 9.879 135 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:1.8 0.0006442526500000001 0.2 AML other m 2020-09-27T01:37:07.90
IV.ASQU.HHE. ML:1.4 0.00025603759999999996 0.16 AML other m 2020-09-27T01:37:08.29
IV.SFI.HNE. ML:1.5 0.0002389201 0.1504 AML other m 2020-09-27T01:37:08.79
IV.SFI.EHE. ML:1.4 0.0002166544 0.14 AML other m 2020-09-27T01:37:08.72
IV.SFI.EHN. ML:1.1 0.00010395518500000001 0.2 AML other m 2020-09-27T01:37:09.10
IV.RINC.HHE. ML:1.2 0.00008523883 0.1 AML other m 2020-09-27T01:37:11.60
IV.RINC.HHN. ML:1.1 0.000066820985 0.34 AML other m 2020-09-27T01:37:11.87
IV.PARC.HHN. ML:0.8 0.0000306322555 0.12 AML other m 2020-09-27T01:37:12.45
IV.PARC.HHE. ML:0.8 0.000027952459999999998 0.28 AML other m 2020-09-27T01:37:12.43
IV.RUFI.EHE. ML:1.2 0.00005762831 0.32 AML other m 2020-09-27T01:37:13.66
IV.RUFI.EHN. ML:1.1 0.000048361974000000004 0.22 AML other m 2020-09-27T01:37:13.65
IV.ATMI.HHE. ML:1.5 0.000066503565 0.28 AML other m 2020-09-27T01:37:22.14
IV.ATMI.HHN. ML:1.4 0.00006076946 0.34 AML other m 2020-09-27T01:37:22.81
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