Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 25-06-2012 and time 18:21:10 (Italy) in region 1 km NW Gualdo (MC)

A magnitude ML 1.3 earthquake occured in region: 1 km NW Gualdo (MC), on

  • 25-06-2012 16:21:10 (UTC)
  • 25-06-2012 18:21:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0770, 13.3280 at 23 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
Gualdo MC 1 815 815
San Ginesio MC 4 3498 4313
Sarnano MC 5 3264 7577
Sant'Angelo in Pontano MC 6 1436 9013
Cessapalombo MC 7 512 9525
Camporotondo di Fiastrone MC 8 563 10088
Penna San Giovanni MC 8 1108 11196
Ripe San Ginesio MC 8 852 12048
Colmurano MC 10 1263 13311
Monte San Martino MC 10 765 14076
Caldarola MC 11 1823 15899
Amandola FM 11 3629 19528
Bolognola MC 12 142 19670
Belforte del Chienti MC 12 1886 21556
Loro Piceno MC 12 2401 23957
Falerone FM 13 3337 27294
Smerillo FM 13 365 27659
Montappone FM 13 1682 29341
Servigliano FM 13 2336 31677
Acquacanina MC 13 121 31798
Monte Vidon Corrado FM 14 731 32529
Urbisaglia MC 14 2628 35157
Fiastra MC 15 559 35716
Montefalcone Appennino FM 15 424 36140
Massa Fermana FM 15 963 37103
Montefortino FM 15 1178 38281
Comunanza AP 15 3166 41447
Santa Vittoria in Matenano FM 15 1330 42777
Tolentino MC 15 20069 62846
Serrapetrona MC 16 966 63812
Monteleone di Fermo FM 17 395 64207
Belmonte Piceno FM 17 646 64853
Mogliano MC 18 4696 69549
Montelparo FM 18 778 70327
Montegiorgio FM 18 6851 77178
Force AP 18 1354 78532
Monsampietro Morico FM 19 659 79191
Montemonaco AP 20 604 79795
Pievebovigliana MC 20 866 80661
Petriolo MC 20 1998 82659
Fiordimonte MC 20 202 82861

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
62 Km S of Ancona (100861 inhabitants)
76 Km E of Perugia (166134 inhabitants)
80 Km NE of Terni (111501 inhabitants)
81 Km N of L'Aquila (69753 inhabitants)
89 Km S of Fano (60888 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
99 Km SE of Pesaro (94582 inhabitants)
99 Km NW of Pescara (121014 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 1.3 2012-06-25
16:21:10		 43.0767 13.3277 23 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 3110001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-06-25 16:21:10 ± 0.22
Latitude 43.0767 ± 0.0081
Longitude 13.3277 ± 0.0098
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3110001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 895
Semi-minor axis of confidence ellipse (meter) 451
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.01529
Epicentral distance of station farthest from the epicenter (degree) 0.33365
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 3
Type of magnitude ML
Reference to an origin 3110001
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:45:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2012-06-25T16:21:24.01 0.3 undecidable manual S 302 37.0296 115 0.14 68
IV.NRCA.HHZ. 2012-06-25T16:21:23.00 0.6 undecidable manual S 213 32.0457 119 0.32 45
IV.FDMO.HHZ. 2012-06-25T16:21:19.96 0.3 undecidable manual S 257 19.9689 134 -0.11 72
IV.SNTG.HHZ. 2012-06-25T16:21:18.27 0.3 undecidable manual P 302 37.0296 115 -0.07 71
IV.NRCA.HHZ. 2012-06-25T16:21:17.77 0.1 undecidable manual P 213 32.0457 119 0.12 94
IV.GUMA.HHZ. 2012-06-25T16:21:17.80 0.3 undecidable manual S 158 1.6983 175 -0.08 75
IV.FDMO.HHZ. 2012-06-25T16:21:16.07 0.1 undecidable manual P 257 19.9689 134 -0.08 96
IV.GUMA.HHZ. 2012-06-25T16:21:14.84 0.1 positive manual P 158 1.6983 175 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 0.000040650000000000006 0.24 AML other m 2012-06-25T16:21:20.03
IV.FDMO.HHN. ML:0.9 0.00003705 0.32 AML other m 2012-06-25T16:21:21.82
IV.GUMA.HHN. ML:1.3 0.0001555 0.16 AML other m 2012-06-25T16:21:17.95
IV.GUMA.HHE. ML:1.4 0.000158 0.3 AML other m 2012-06-25T16:21:17.90
IV.NRCA.HHN. ML:1.4 0.00010005 0.12 AML other m 2012-06-25T16:21:24.29
IV.NRCA.HHE. ML:1.8 0.00020600000000000002 0.14 AML other m 2012-06-25T16:21:24.38
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