Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 26-04-2014 and time 01:20:09 (Italy) in region 5 km SW Valfabbrica (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km SW Valfabbrica (PG), on

  • 25-04-2014 23:20:09 (UTC)
  • 26-04-2014 01:20:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1330, 12.5530 at 11 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valfabbrica PG 5 3389 3389
Bastia Umbra PG 7 21874 25263
Assisi PG 9 28299 53562
Perugia PG 14 166134 219696
Bettona PG 14 4367 224063
Torgiano PG 15 6725 230788
Cannara PG 15 4305 235093
Spello PG 18 8645 243738
Valtopina PG 18 1398 245136
Nocera Umbra PG 20 5839 250975
Deruta PG 20 9669 260644

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Perugia (166134 inhabitants)
23 Km NW of Foligno (57155 inhabitants)
64 Km N of Terni (111501 inhabitants)
66 Km SE of Arezzo (99543 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
88 Km SW of Fano (60888 inhabitants)
91 Km SW of Pesaro (94582 inhabitants)
95 Km SW of Ancona (100861 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 0.9 2014-04-25
23:20:09		 43.1328 12.5533 11 2015-09-21
09:36:10		 Bollettino Sismico Italiano INGV 16535551
Reviewed
Rev100 		ML 0.9 2014-04-25
23:20:09		 43.1345 12.5588 11 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 6298221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-04-25 23:20:09 ± 0.04
Latitude 43.1328 ± 0.0018
Longitude 12.5533 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 16535551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 280
Semi-minor axis of confidence ellipse (meter) 185
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.47035
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 6298221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-04-25 23:29:19

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 16535551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-01-15 11:39:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2014-04-25T23:20:24.10 0.3 undecidable manual S 358 44.7219 50 0.15 69
IV.SSFR.HHZ. 2014-04-25T23:20:22.38 0.3 undecidable manual S 29 38.4282 50 0.11 71
IV.MOMA.HHE. 2014-04-25T23:20:21.99 0.3 undecidable manual S 178 36.8298 50 0.14 70
IV.ATVO.HHZ. 2014-04-25T23:20:19.88 0.3 undecidable manual S 337 30.0477 50 -0.17 71
IV.CAFI.HHZ. 2014-04-25T23:20:19.17 0.3 undecidable manual P 295 52.2033 50 0.19 68
IV.ARVD.HHZ. 2014-04-25T23:20:18.72 0.3 undecidable manual P 38 51.2154 50 -0.11 69
IV.FOSV.EHZ. 2014-04-25T23:20:18.57 0.3 undecidable manual S 43 24.5532 50 -0.02 74
IV.ATFO.HHZ. 2014-04-25T23:20:18.90 0.3 undecidable manual S 3 25.9518 50 -0.05 73
IV.PIEI.HHZ. 2014-04-25T23:20:17.90 0.3 undecidable manual P 358 44.7219 50 0.08 70
IV.MGAB.HHE. 2014-04-25T23:20:17.81 0.3 undecidable manual P 236 43.3233 50 0.2 69
IV.MOMA.HHE. 2014-04-25T23:20:16.51 0.3 undecidable manual P 178 36.8298 50 -0.1 71
IV.ATTE.HHZ. 2014-04-25T23:20:16.28 0.3 undecidable manual S 294 17.6712 121 -0.31 70
IV.SSFR.HHZ. 2014-04-25T23:20:16.71 0.3 undecidable manual P 29 38.4282 50 -0.14 70
IV.MURB.HHZ. 2014-04-25T23:20:15.81 0.3 undecidable manual S 351 14.5743 126 0.11 74
IV.ATVO.HHZ. 2014-04-25T23:20:15.34 0.3 undecidable manual P 337 30.0477 50 -0.22 70
IV.ASSB.HHZ. 2014-04-25T23:20:15.13 0.1 undecidable manual S 140 13.1757 129 -0.16 97
IV.FOSV.EHZ. 2014-04-25T23:20:14.59 0.3 undecidable manual P 43 24.5532 50 -0.13 72
IV.ATFO.HHZ. 2014-04-25T23:20:14.89 0.3 undecidable manual P 3 25.9518 50 -0.04 73
IV.ATCC.EHZ. 2014-04-25T23:20:14.32 0.3 undecidable manual S 50 9.0798 139 0.05 75
IV.MURB.HHZ. 2014-04-25T23:20:13.17 0.1 undecidable manual P 351 14.5743 126 0.12 98
IV.ATTE.HHZ. 2014-04-25T23:20:13.70 0.3 undecidable manual P 294 17.6712 121 0.13 73
IV.ATCC.EHZ. 2014-04-25T23:20:12.35 0.1 undecidable manual P 50 9.0798 139 0.12 99
IV.ASSB.HHZ. 2014-04-25T23:20:12.85 0.1 undecidable manual P 140 13.1757 129 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:0.6 0.0000269 2.26 AML other m 2014-04-25T23:20:19.49
IV.ATFO.HHE. ML:0.6 0.00002325 0.18 AML other m 2014-04-25T23:20:21.75
IV.ATTE.HHN. ML:0.4 0.0000201 0.24 AML other m 2014-04-25T23:20:17.24
IV.ATTE.HHE. ML:0.6 0.000028650000000000002 2.98 AML other m 2014-04-25T23:20:18.69
IV.FOSV.EHN. ML:0.8 0.000033 3.24 AML other m 2014-04-25T23:20:20.73
IV.FOSV.EHE. ML:0.8 0.0000393 0.16 AML other m 2014-04-25T23:20:19.86
IV.MURB.HHE. ML:1.3 0.00020750000000000003 0.34 AML other m 2014-04-25T23:20:16.02
IV.MURB.HHN. ML:1.2 0.00016549999999999998 0.22 AML other m 2014-04-25T23:20:17.06
IV.SSFR.HHE. ML:1.3 0.00007139999999999999 1.72 AML other m 2014-04-25T23:20:23.02
IV.SSFR.HHN. ML:1.3 0.00007225000000000001 0.2 AML other m 2014-04-25T23:20:23.70
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