Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 25-03-2014 and time 02:48:01 (UTC) in region 2 km NE Massa Martana (PG)

A magnitude ML 2.5 earthquake occured in region: 2 km NE Massa Martana (PG), on

  • 25-03-2014 02:48:01 (UTC)
  • 25-03-2014 03:48:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7880, 12.5400 at 6 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
Massa Martana PG 2 3770 3770
Giano dell'Umbria PG 6 3846 7616
Todi PG 11 16851 24467
Acquasparta TR 11 4778 29245
Castel Ritaldi PG 12 3278 32523
Gualdo Cattaneo PG 14 6155 38678
Collazzone PG 15 3473 42151
Montefalco PG 15 5679 47830
Montecastrilli TR 16 5022 52852
Fratta Todina PG 16 1839 54691
Monte Castello di Vibio PG 16 1567 56258
Spoleto PG 17 38218 94476
Bevagna PG 17 5081 99557
Avigliano Umbro TR 17 2558 102115
San Gemini TR 19 5018 107133
Trevi PG 20 8469 115602
Campello sul Clitunno PG 20 2442 118044

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Foligno (57155 inhabitants)
27 Km NW of Terni (111501 inhabitants)
38 Km SE of Perugia (166134 inhabitants)
54 Km NE of Viterbo (67173 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
89 Km N of Guidonia Montecelio (88673 inhabitants)
92 Km SE of Arezzo (99543 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
96 Km W of Teramo (54892 inhabitants)
99 Km NE of Civitavecchia (52991 inhabitants)
100 Km N of Roma (2864731 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 2.5 2014-03-25
02:48:01		 42.7883 12.5397 6 2015-09-21
09:35:11		 Bollettino Sismico Italiano INGV 9736121
Reviewed
Rev100 		ML 2.5 2014-03-25
02:48:01		 42.7852 12.5403 6 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 5922201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-03-25 02:48:01 ± 0.09
Latitude 42.7883 ± 0.0045
Longitude 12.5397 ± 0.0061
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 9736121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 467
Semi-minor axis of confidence ellipse (meter) 373
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 53
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.92990
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 1
Type of magnitude ML
Reference to an origin 9736121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-01 22:25:40

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 5922201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-03-25 02:54:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2014-03-25T02:48:25.70 0.1 undecidable manual S 37 75.369 50 0.89 69
IV.CAFI.HHE. 2014-03-25T02:48:25.70 0.1 undecidable manual S 322 75.8685 50 0.75 73
IV.SMA1.EHZ. 2014-03-25T02:48:23.20 0.1 undecidable manual S 105 67.1772 50 0.57 80
IV.ATVO.HHZ. 2014-03-25T02:48:22.80 0.1 undecidable manual S 351 66.7776 50 0.29 86
IV.ATFO.HHE. 2014-03-25T02:48:22.20 0.1 undecidable manual S 2 64.1913 50 0.37 85
IV.ATMI.HHZ. 2014-03-25T02:48:21.30 0.1 undecidable manual S 340 64.3911 50 -0.59 79
IV.SNTG.HHZ. 2014-03-25T02:48:21.30 0.1 undecidable manual S 32 61.0944 50 0.29 87
IV.FOSV.EHZ. 2014-03-25T02:48:20.60 0.1 undecidable manual S 18 58.9965 50 0.16 89
IV.FAGN.HHZ. 2014-03-25T02:48:19.93 0.6 undecidable manual P 124 103.2189 50 0.81 34
IV.MURB.HHZ. 2014-03-25T02:48:18.80 0.1 undecidable manual S 359 52.7028 50 0.05 93
IV.SSP9.EHZ. 2014-03-25T02:48:18.46 0.1 undecidable manual P 339 93.1401 50 0.89 66
IV.PARC.HHZ. 2014-03-25T02:48:18.76 0.1 undecidable manual P 346 98.4237 50 0.37 79
IV.FDMO.HHZ. 2014-03-25T02:48:18.80 0.1 undecidable manual S 58 52.3032 50 0.14 91
IV.NRCA.HHZ. 2014-03-25T02:48:17.20 0.1 undecidable manual S 84 47.0196 50 -0.05 93
IV.ARVD.HHZ. 2014-03-25T02:48:16.27 0.1 undecidable manual P 22 85.1481 50 -0.07 87
IV.LNSS.HHZ. 2014-03-25T02:48:16.50 0.1 undecidable manual S 117 45.7209 50 -0.4 87
IV.CING.HHZ. 2014-03-25T02:48:16.32 0.1 undecidable manual P 39 84.0492 50 0.15 85
MN.AQU.HHE. 2014-03-25T02:48:16.84 0.1 undecidable manual P 124 85.5477 50 0.44 80
IV.ATCC.EHZ. 2014-03-25T02:48:16.40 0.1 undecidable manual S 10 44.7219 50 -0.24 90
IV.BADI.EHZ. 2014-03-25T02:48:16.26 0.1 undecidable manual P 343 83.4498 50 0.18 85
IV.ATTE.HHZ. 2014-03-25T02:48:16.70 0.1 undecidable manual S 342 47.8188 50 -0.77 76
IV.CDCA.EHE. 2014-03-25T02:48:16.39 0.1 undecidable manual P 342 78.366 50 1.1 62
IV.MGAB.HHZ. 2014-03-25T02:48:15.30 0.1 undecidable manual S 292 37.4292 100 0.96 72
IV.PIEI.HHZ. 2014-03-25T02:48:15.99 0.1 undecidable manual P 360 82.8504 50 0 88
IV.MCIV.HHZ. 2014-03-25T02:48:14.15 0.1 undecidable manual P 269 70.2741 50 0.11 89
IV.FIAM.HHZ. 2014-03-25T02:48:14.24 0.3 undecidable manual P 141 74.5698 50 -0.47 61
IV.EL6.EHZ. 2014-03-25T02:48:14.98 0.1 undecidable manual P 37 75.369 50 0.16 87
IV.CAFI.HHE. 2014-03-25T02:48:14.39 0.1 undecidable manual P 322 75.8685 50 -0.52 80
IV.ATPI.EHZ. 2014-03-25T02:48:14.18 0.1 undecidable manual P 351 74.2701 50 -0.48 81
IV.CESI.HHZ. 2014-03-25T02:48:14.60 0.1 undecidable manual S 51 38.1285 99 -0.01 96
IV.ATVO.HHZ. 2014-03-25T02:48:13.06 0.1 undecidable manual P 351 66.7776 50 -0.44 83
IV.SMA1.EHZ. 2014-03-25T02:48:13.55 0.3 negative manual P 105 67.1772 50 -0.02 68
IV.ATFO.HHE. 2014-03-25T02:48:12.88 0.1 undecidable manual P 2 64.1913 50 -0.22 87
IV.SNTG.HHZ. 2014-03-25T02:48:12.35 0.1 undecidable manual P 32 61.0944 50 -0.28 87
IV.ATMI.HHZ. 2014-03-25T02:48:12.84 0.1 undecidable manual P 340 64.3911 50 -0.3 86
IV.FOSV.EHZ. 2014-03-25T02:48:12.04 0.1 undecidable manual P 18 58.9965 50 -0.26 88
IV.ARRO.EHZ. 2014-03-25T02:48:12.10 0.6 undecidable manual S 141 29.6481 102 0.4 45
IV.MURB.HHZ. 2014-03-25T02:48:11.05 0.1 negative manual P 359 52.7028 50 -0.28 88
IV.ASSB.HHZ. 2014-03-25T02:48:11.80 0.3 undecidable manual S 19 29.8479 102 0.04 72
IV.FDMO.HHZ. 2014-03-25T02:48:11.21 0.3 negative manual P 58 52.3032 50 -0.07 69
IV.SACS.HHZ. 2014-03-25T02:48:11.07 0.1 undecidable manual P 278 51.7038 50 -0.11 92
IV.NRCA.HHZ. 2014-03-25T02:48:10.09 0.1 undecidable manual P 84 47.0196 50 -0.37 87
IV.ATTE.HHZ. 2014-03-25T02:48:10.00 0.1 undecidable manual P 342 47.8188 50 -0.59 82
IV.LNSS.HHZ. 2014-03-25T02:48:09.91 0.1 negative manual P 117 45.7209 50 -0.35 88
IV.ATCC.EHZ. 2014-03-25T02:48:09.57 0.1 undecidable manual P 10 44.7219 50 -0.54 84
IV.MGAB.HHZ. 2014-03-25T02:48:08.45 0.1 negative manual P 292 37.4292 100 -0.33 90
IV.CESX.HHZ. 2014-03-25T02:48:08.80 0.6 undecidable manual S 169 20.3685 107 0.23 47
IV.CESI.HHZ. 2014-03-25T02:48:08.95 0.3 undecidable manual P 51 38.1285 99 0.01 72
IV.ARRO.EHZ. 2014-03-25T02:48:07.31 0.1 negative manual P 141 29.6481 102 0.05 96
IV.ASSB.HHZ. 2014-03-25T02:48:07.33 0.1 negative manual P 19 29.8479 102 0.04 97
IV.CESX.HHZ. 2014-03-25T02:48:05.33 0.1 undecidable manual P 169 20.3685 107 -0.12 97
IV.MOMA.HHE. 2014-03-25T02:48:03.36 0.3 undecidable manual S 59 2.6973 157 -0.21 73
IV.MOMA.HHE. 2014-03-25T02:48:02.66 0.1 undecidable manual P 59 2.6973 157 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:2.8 0.004785 0.6 AML other m 2014-03-25T02:48:29.61
IV.CESX.HHE. ML:2.9 0.006220000000000001 0.66 AML other m 2014-03-25T02:48:29.59
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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