Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 08-01-2019 and time 14:40:53 (Italy) in region 2 km SE Monteroni d'Arbia (SI)

A magnitude ML 2.0 earthquake occured in region: 2 km SE Monteroni d'Arbia (SI), on

  • 08-01-2019 13:40:53 (UTC)
  • 08-01-2019 14:40:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2170, 11.4370 at 10 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monteroni d'Arbia SI 2 9088 9088
Murlo SI 6 2389 11477
Buonconvento SI 10 3173 14650
Asciano SI 10 7118 21768
Siena SI 14 53903 75671
San Giovanni d'Asso SI 14 853 76524
Castelnuovo Berardenga SI 15 9097 85621
Rapolano Terme SI 16 5249 90870
Montalcino SI 18 5093 95963
Sovicille SI 18 10116 106079
Trequanda SI 19 1254 107333

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km SE of Siena (53903 inhabitants)
46 Km SW of Arezzo (99543 inhabitants)
57 Km NE of Grosseto (82087 inhabitants)
63 Km S of Firenze (382808 inhabitants)
64 Km SE of Scandicci (50609 inhabitants)
78 Km W of Perugia (166134 inhabitants)
79 Km SE of Prato (191150 inhabitants)
90 Km SE of Pistoia (90315 inhabitants)
99 Km E of Livorno (159219 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 2.0 2019-01-08
13:40:53		 43.217 11.4367 10 2019-08-22
08:24:48		 Bollettino Sismico Italiano INGV 64608011
Reviewed
Rev100 		ML 2.0 2019-01-08
13:40:53		 43.2198 11.4413 10 2019-01-08
13:54:19		 Sala Sismica INGV-Roma 64586871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-08 13:40:53 ± 0.12
Latitude 43.2170 ± 0.0072
Longitude 11.4367 ± 0.0136
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 64608011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1130
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 275
Circular confidence region, given by single value of horizontal uncertainty (meter) 1130.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63312
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 64608011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-21 13:58:43

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 64586871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-08 13:54:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VITU.HHZ. 2019-01-08T13:42:33.60 3.0 undecidable manual Sg 10.42 0
CH.FUORN.HHZ. 2019-01-08T13:42:29.74 3.0 undecidable manual Sn -2.02 0
IV.MOCO.HHZ. 2019-01-08T13:42:28.70 3.0 undecidable manual Sn 0.84 0
ST.CARE.EHZ. 2019-01-08T13:42:22.23 3.0 undecidable manual Sn -3.3 0
IV.VIVA.HHZ. 2019-01-08T13:41:52.02 3.0 undecidable manual Sg 1.72 0
GU.CANO.HHZ. 2019-01-08T13:41:41.21 3.0 positive manual Pg 5.55 0
MN.TRI.HHZ. 2019-01-08T13:41:40.16 3.0 positive manual Pn -1.27 0
IT.VNF1.HGZ. 2019-01-08T13:41:36.90 3.0 negative manual Pn 0.29 0
IV.SARZ.HHZ. 2019-01-08T13:41:35.84 3.0 undecidable manual Pn 1.29 0
IV.NARO.HHZ. 2019-01-08T13:41:24.54 3.0 undecidable manual S -1.78 0
IV.CRE.HHZ. 2019-01-08T13:41:12.87 0.6 undecidable manual S 43 60.8946 50 0.41 46
IV.CAFI.HHZ. 2019-01-08T13:41:07.53 0.6 undecidable manual S 74 44.5221 50 -0.56 46
IV.ARCI.HHZ. 2019-01-08T13:41:07.43 0.6 undecidable manual S 176 40.626 50 0.39 48
IV.ASQU.HHE. 2019-01-08T13:41:06.82 0.6 undecidable manual P 24 70.2741 50 0.93 37
IV.CRE.HHZ. 2019-01-08T13:41:05.08 0.3 undecidable manual P 43 60.8946 50 0.63 64
IV.CASP.HHZ. 2019-01-08T13:41:05.96 0.3 undecidable manual P 225 66.1893 50 0.7 62
IV.CSNT.HHZ. 2019-01-08T13:41:04.08 0.3 undecidable manual S 337 30.747 50 -0.34 74
TV.SF13.HHZ. 2019-01-08T13:41:02.08 0.3 undecidable manual P 161 46.62 50 -0.17 75
TV.SF01.EHZ. 2019-01-08T13:41:02.03 0.6 undecidable manual P 167 46.1205 50 -0.13 50
TV.SF11.HHZ. 2019-01-08T13:41:01.72 0.6 undecidable manual P 153 43.3233 50 -0.02 52
IV.RIBO.EHZ. 2019-01-08T13:41:01.68 0.3 undecidable manual P 227 43.4232 50 -0.07 77
IV.CAFI.HHZ. 2019-01-08T13:41:01.76 0.3 undecidable manual P 74 44.5221 50 -0.16 75
IV.ARCI.HHZ. 2019-01-08T13:41:01.00 0.3 undecidable manual P 176 40.626 50 -0.32 73
TV.SF04.EHZ. 2019-01-08T13:41:01.96 0.3 undecidable manual P 157 46.0206 50 -0.19 75
IV.CSNT.HHZ. 2019-01-08T13:40:59.51 0.1 undecidable manual P 337 30.747 50 -0.29 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSNT.HHE. ML:2.0 0.00045850000000000003 0.46 AML other m 2019-01-08T13:41:04.45
IV.CSNT.HHN. ML:2.0 0.0004535 0.16 AML other m 2019-01-08T13:41:05.21
IV.ARCI.HHE. ML:2.1 0.00046750000000000003 0.92 AML other m 2019-01-08T13:41:08.04
IV.ARCI.HHN. ML:2.2 0.0005765 1.44 AML other m 2019-01-08T13:41:08.83
IV.CAFI.HHE. ML:1.6 0.0001315 1.28 AML other m 2019-01-08T13:41:08.34
IV.CAFI.HHN. ML:1.7 0.00016099999999999998 0.76 AML other m 2019-01-08T13:41:08.83
TV.SF04.EHE. ML:1.9 0.0002495 0.66 AML other m 2019-01-08T13:41:10.63
TV.SF01.EHE. ML:2.0 0.0002535 0.78 AML other m 2019-01-08T13:41:10.04
TV.SF01.EHN. ML:2.0 0.00029400000000000004 0.6 AML other m 2019-01-08T13:41:11.00
TV.SF04.EHN. ML:2.0 0.00028649999999999997 1.64 AML other m 2019-01-08T13:41:13.84
IV.CRE.HHN. ML:2.0 0.0002235 0.26 AML other m 2019-01-08T13:41:16.87
IV.CRE.HHE. ML:1.8 0.00011715 1.42 AML other m 2019-01-08T13:41:17.76
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
Waveforms Seismic signals in miniseed + resp format Download