Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 25-04-2013 and time 00:09:08 (Italy) in region 1 km SE Monteleone di Spoleto (PG)

A magnitude ML 1.4 earthquake occured in region: 1 km SE Monteleone di Spoleto (PG), on

  • 24-04-2013 22:09:08 (UTC)
  • 25-04-2013 00:09:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6490, 12.9580 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
Monteleone di Spoleto PG 1 599 599
Poggiodomo PG 7 117 716
Cascia PG 9 3217 3933
Leonessa RI 10 2435 6368
Polino TR 12 233 6601
Scheggino PG 13 461 7062
Sant'Anatolia di Narco PG 14 564 7626
Ferentillo TR 14 1913 9539
Vallo di Nera PG 16 364 9903
Montefranco TR 17 1276 11179
Cittareale RI 17 482 11661
Rivodutri RI 17 1253 12914
Morro Reatino RI 17 373 13287
Arrone TR 17 2763 16050
Poggio Bustone RI 17 2055 18105
Posta RI 18 694 18799
Labro RI 19 374 19173
Cerreto di Spoleto PG 19 1075 20248
Norcia PG 20 4957 25205

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Terni (111501 inhabitants)
40 Km SE of Foligno (57155 inhabitants)
49 Km NW of L'Aquila (69753 inhabitants)
61 Km W of Teramo (54892 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
74 Km E of Viterbo (67173 inhabitants)
75 Km N of Guidonia Montecelio (88673 inhabitants)
77 Km N of Tivoli (56533 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
99 Km W of Montesilvano (53738 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 1.4 2013-04-24
22:09:08		 42.6488 12.9585 10 2015-01-20
11:25:34		 Bollettino Sismico Italiano INGV 4541171
Reviewed
Rev100 		ML 1.4 2013-04-24
22:09:08		 42.647 12.9602 10 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3319871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-24 22:09:08 ± 0.06
Latitude 42.6488 ± 0.0036
Longitude 12.9585 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4541171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 324
Semi-minor axis of confidence ellipse (meter) 274
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 188
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
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) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.67449
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 4541171
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:25:16

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 3319871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-04-24 22:20:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2013-04-24T22:09:25.11 0.6 undecidable manual S 331 50.0166 50 0.32 45
IV.TERO.HHZ. 2013-04-24T22:09:25.39 0.6 undecidable manual S 93 52.7028 50 -0.13 47
IV.FDMO.HHZ. 2013-04-24T22:09:23.27 0.3 undecidable manual S 14 44.2224 50 0.02 73
IV.FIAM.HHZ. 2013-04-24T22:09:23.18 0.3 undecidable manual S 163 44.2224 50 -0.05 72
IV.MGAB.HHZ. 2013-04-24T22:09:22.30 0.1 undecidable manual P 293 74.8695 50 0.45 84
IV.CESI.HHZ. 2013-04-24T22:09:22.08 0.3 undecidable manual S 354 39.7269 50 0.03 73
IV.MOMA.HHZ. 2013-04-24T22:09:21.48 0.3 undecidable manual S 298 36.0417 50 0.43 68
IV.CAMP.HHZ. 2013-04-24T22:09:21.79 0.3 undecidable manual S 109 38.8278 50 -0.02 73
IV.SNTG.HHZ. 2013-04-24T22:09:20.63 0.1 undecidable manual P 359 67.2771 50 -0.05 93
IV.GUMA.HHZ. 2013-04-24T22:09:19.22 0.1 undecidable manual P 34 55.2003 50 0.4 88
IV.CESX.HHZ. 2013-04-24T22:09:19.48 0.3 undecidable manual S 262 30.6471 50 -0.15 73
IV.SMA1.EHZ. 2013-04-24T22:09:19.99 0.3 undecidable manual S 94 30.8469 50 0.33 70
IV.TERO.HHZ. 2013-04-24T22:09:18.09 0.1 undecidable manual P 93 52.7028 50 -0.35 89
IV.NRCA.HHZ. 2013-04-24T22:09:17.51 0.3 undecidable manual S 32 24.0537 113 -0.34 71
IV.ASSB.HHZ. 2013-04-24T22:09:17.83 0.1 undecidable manual P 331 50.0166 50 -0.19 93
IV.FIAM.HHZ. 2013-04-24T22:09:16.82 0.3 undecidable manual P 163 44.2224 50 -0.3 69
IV.FDMO.HHZ. 2013-04-24T22:09:16.99 0.1 undecidable manual P 14 44.2224 50 -0.14 95
IV.CAMP.HHZ. 2013-04-24T22:09:16.23 0.1 undecidable manual P 109 38.8278 50 -0.08 97
IV.CESI.HHZ. 2013-04-24T22:09:16.37 0.1 undecidable manual P 354 39.7269 50 -0.07 97
IV.ARRO.EHZ. 2013-04-24T22:09:15.60 0.3 undecidable manual S 244 17.5713 120 -0.2 73
IV.SMA1.EHZ. 2013-04-24T22:09:15.18 0.1 undecidable manual P 94 30.8469 50 0.12 97
IV.MOMA.HHZ. 2013-04-24T22:09:15.68 0.1 undecidable manual P 298 36.0417 50 -0.18 95
IV.CESX.HHZ. 2013-04-24T22:09:14.81 0.1 undecidable manual P 262 30.6471 50 -0.22 95
IV.NRCA.HHZ. 2013-04-24T22:09:13.85 0.1 undecidable manual P 32 24.0537 113 -0.16 98
IV.LNSS.HHZ. 2013-04-24T22:09:13.52 0.1 undecidable manual S 127 8.3805 140 0.18 100
IV.ARRO.EHZ. 2013-04-24T22:09:12.95 0.1 undecidable manual P 244 17.5713 120 0.12 100
IV.LNSS.HHZ. 2013-04-24T22:09:11.73 0.1 undecidable manual P 127 8.3805 140 0.31 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.7 0.00044950000000000003 0.24 AML other m 2013-04-24T22:09:15.79
IV.ARRO.EHN. ML:1.7 0.00042600000000000005 0.44 AML other m 2013-04-24T22:09:15.90
IV.ASSB.HHE. ML:1.4 0.0000669 1.3 AML other m 2013-04-24T22:09:27.07
IV.ASSB.HHN. ML:1.5 0.00007815 1.1 AML other m 2013-04-24T22:09:26.10
IV.CAMP.HHN. ML:1.0 0.00003759999999999999 0.34 AML other m 2013-04-24T22:09:22.31
IV.CAMP.HHE. ML:0.9 0.000028749999999999997 0.34 AML other m 2013-04-24T22:09:22.81
IV.CESI.HHN. ML:1.0 0.000038150000000000006 0.8 AML other m 2013-04-24T22:09:23.19
IV.CESI.HHE. ML:0.8 0.000024449999999999998 0.2 AML other m 2013-04-24T22:09:23.51
IV.CESX.HHN. ML:1.2 0.00007500000000000001 0.52 AML other m 2013-04-24T22:09:21.50
IV.CESX.HHE. ML:1.1 0.0000633 0.38 AML other m 2013-04-24T22:09:24.54
IV.FDMO.HHN. ML:1.2 0.000043049999999999996 0.18 AML other m 2013-04-24T22:09:23.91
IV.FDMO.HHE. ML:1.4 0.000076 1.44 AML other m 2013-04-24T22:09:24.41
IV.FIAM.HHN. ML:1.0 0.00003065 1.04 AML other m 2013-04-24T22:09:24.37
IV.FIAM.HHE. ML:1.1 0.00003675 0.56 AML other m 2013-04-24T22:09:24.30
IV.GUMA.HHE. ML:1.6 0.0000894 0.22 AML other m 2013-04-24T22:09:29.61
IV.GUMA.HHN. ML:1.6 0.00008695 0.44 AML other m 2013-04-24T22:09:30.25
IV.MGAB.HHE. ML:1.4 0.000033849999999999996 1.58 AML other m 2013-04-24T22:09:34.53
IV.MGAB.HHN. ML:1.4 0.00003465 0.36 AML other m 2013-04-24T22:09:39.41
IV.MOMA.HHN. ML:1.6 0.00015150000000000002 0.7 AML other m 2013-04-24T22:09:22.42
IV.MOMA.HHE. ML:1.7 0.000188 0.12 AML other m 2013-04-24T22:09:22.57
IV.NRCA.HHE. ML:1.8 0.000381 0.16 AML other m 2013-04-24T22:09:17.87
IV.NRCA.HHN. ML:1.6 0.0002715 0.08 AML other m 2013-04-24T22:09:19.15
IV.SMA1.EHE. ML:2.0 0.000488 0.3 AML other m 2013-04-24T22:09:20.29
IV.SMA1.EHN. ML:1.7 0.00022050000000000002 0.52 AML other m 2013-04-24T22:09:20.58
IV.TERO.HHE. ML:1.0 0.0000252 0.08 AML other m 2013-04-24T22:09:25.73
IV.TERO.HHN. ML:1.0 0.000023899999999999998 1.14 AML other m 2013-04-24T22:09:25.82
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