Earthquake with magnitude of ML 1.1 on date 25-04-2014 and time 22:58:17 (Italy) in region 5 km SW Cetona (SI)

A magnitude ML 1.1 earthquake occured in region: 5 km SW Cetona (SI), on

  • 25-04-2014 20:58:17 (UTC)
  • 25-04-2014 22:58:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9340, 11.8540 at 5 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
Cetona SI 5 2755 2755
Sarteano SI 6 4717 7472
San Casciano dei Bagni SI 7 1632 9104
Radicofani SI 8 1097 10201
Chiusi SI 12 8704 18905
Città della Pieve PG 13 7712 26617
Chianciano Terme SI 14 7105 33722
Fabro TR 15 2876 36598
Abbadia San Salvatore SI 15 6444 43042
Piancastagnaio SI 16 4230 47272
Monteleone d'Orvieto TR 16 1467 48739
Allerona TR 17 1794 50533
Montepulciano SI 19 14097 64630
Piegaro PG 19 3669 68299
Montegabbione TR 20 1216 69515
Proceno VT 20 557 70072

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km W of Perugia (166134 inhabitants)
59 Km S of Arezzo (99543 inhabitants)
60 Km SE of Siena (53903 inhabitants)
61 Km NW of Viterbo (67173 inhabitants)
63 Km E of Grosseto (82087 inhabitants)
69 Km W of Foligno (57155 inhabitants)
77 Km NW of Terni (111501 inhabitants)
94 Km N of Civitavecchia (52991 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 1.1 2014-04-25
20:58:17
42.9342 11.8542 5 2015-09-21
09:36:10
Bollettino Sismico Italiano INGV 16535001
Reviewed
Rev100
ML 1.2 2014-04-25
20:58:17
42.9352 11.8622 5 2014-10-21
12:08:56
Sala Sismica INGV-Roma 6297631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-04-25 20:58:17 ± 0.08
Latitude 42.9342 ± 0.0045
Longitude 11.8542 ± 0.0049
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 16535001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 475
Semi-minor axis of confidence ellipse (meter) 366
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
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) 73
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.09443
Epicentral distance of station farthest from the epicenter (degree) 0.58906
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 6297631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-04-25 21:38:33

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 3
Type of magnitude ML
Reference to an origin 16535001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-01-15 10:42:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2014-04-25T20:58:39.25 0.3 undecidable manual S 56 65.3901 50 0.33 66
IV.ATTE.HHZ. 2014-04-25T20:58:34.19 0.3 undecidable manual S 54 49.9167 50 -0.6 63
IV.CAFI.HHZ. 2014-04-25T20:58:33.56 0.3 undecidable manual S 12 44.7219 97 0.25 70
IV.MURB.HHZ. 2014-04-25T20:58:30.04 0.3 undecidable manual P 56 65.3901 50 0.1 69
IV.FROS.HHZ. 2014-04-25T20:58:30.13 0.3 undecidable manual P 299 64.2912 50 0.36 66
IV.LATE.HHZ. 2014-04-25T20:58:30.26 0.3 undecidable manual S 187 35.8419 98 0.03 74
IV.ARCI.HHE. 2014-04-25T20:58:28.41 0.3 undecidable manual S 254 32.1456 99 -0.56 66
IV.ATTE.HHZ. 2014-04-25T20:58:27.60 0.3 undecidable manual P 54 49.9167 50 0.04 72
IV.CAFI.HHZ. 2014-04-25T20:58:26.48 0.3 undecidable manual P 12 44.7219 97 -0.23 70
IV.MGAB.HHZ. 2014-04-25T20:58:25.03 0.3 undecidable manual S 96 21.0678 104 -0.18 74
IV.MCIV.HHZ. 2014-04-25T20:58:25.85 0.3 undecidable manual S 220 22.5552 103 0.16 74
IV.ARCI.HHE. 2014-04-25T20:58:24.32 0.3 undecidable manual P 254 32.1456 99 0.13 73
IV.LATE.HHZ. 2014-04-25T20:58:24.62 0.6 undecidable manual P 187 35.8419 98 -0.31 47
IV.MCIV.HHZ. 2014-04-25T20:58:22.33 0.3 undecidable manual P 220 22.5552 103 0.02 76
IV.MGAB.HHZ. 2014-04-25T20:58:21.95 0.3 undecidable manual P 96 21.0678 104 -0.07 75
IV.SACS.HHZ. 2014-04-25T20:58:21.82 0.3 undecidable manual S 154 10.4784 116 0.1 76
IV.SACS.HHZ. 2014-04-25T20:58:20.20 0.1 negative manual P 154 10.4784 116 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCIV.HHN. ML:0.6 0.0000311 0.18 AML other m 2014-04-25T20:58:26.38
IV.MCIV.HHE. ML:0.6 0.00003145 2.24 AML other m 2014-04-25T20:59:13.50
IV.MGAB.HHE. ML:1.2 0.00011965000000000001 0.6 AML other m 2014-04-25T20:58:27.58
IV.MGAB.HHN. ML:1.2 0.00010894999999999999 2.76 AML other m 2014-04-25T20:58:26.14
IV.SACS.HHE. ML:1.4 0.000368 1.78 AML other m 2014-04-25T20:58:23.96
IV.SACS.HNE. ML:1.4 0.00036199999999999996 1.78 AML other m 2014-04-25T20:58:23.96
IV.SACS.HHN. ML:1.2 0.0002445 0.4 AML other m 2014-04-25T20:58:23.79
IV.SACS.HNN. ML:1.2 0.00023799999999999998 0.4 AML other m 2014-04-25T20:58:23.79
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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