Earthquake with magnitude of ML 1.6 on date 25-04-2010 and time 08:19:44 (Italy) in region 4 km W Macugnaga (VB)

A magnitude ML 1.6 earthquake occured in region: 4 km W Macugnaga (VB), on

  • 25-04-2010 06:19:44 (UTC)
  • 25-04-2010 08:19:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.9530, 7.9260 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Macugnaga VB 4 557 557
Carcoforo VC 11 78 635
Alagna Valsesia VC 11 408 1043
Ceppo Morelli VB 11 321 1364
Rima San Giuseppe VC 12 59 1423
Riva Valdobbia VC 13 258 1681
Vanzone con San Carlo VB 15 407 2088
Rimasco VC 15 106 2194
Gressoney-La-Trinité AO 16 303 2497
Mollia VC 17 95 2592
Bannio Anzino VB 18 475 3067
Campertogno VC 19 237 3304
Antrona Schieranco VB 19 428 3732
Fobello VC 19 196 3928
Calasca-Castiglione VB 20 649 4577
Cervatto VC 20 47 4624
Boccioleto VC 20 205 4829

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km W of Varese (80799 inhabitants)
75 Km W of Gallarate (53343 inhabitants)
78 Km NW of Novara (104380 inhabitants)
81 Km W of Busto Arsizio (83106 inhabitants)
87 Km W of Legnano (60262 inhabitants)
91 Km W of Como (84495 inhabitants)
99 Km W of Rho (50434 inhabitants)
100 Km N of Torino (890529 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
Md 1.9
ML 1.6
2010-04-25
06:19:44
45.953 7.926 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1040889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-04-25 06:19:44 ± 0.57
Latitude 45.9530 ± 0.0144
Longitude 7.9260 ± 0.0466
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1040889

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2937
Semi-minor axis of confidence ellipse (meter) 2189
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 3939.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.74
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.74104
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1040889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:01:05

Md:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1040889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:01:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VARE.HHN. 2010-04-25T06:20:03.42 10.0 undecidable manual Pg 0 0 0
GU.TRAV.HHN. 2010-04-25T06:19:59.75 0.3 undecidable manual Sg 196 50.8158 -0.799 67
GU.CIRO.HHZ. 2010-04-25T06:19:58.81 0.3 undecidable manual Sg 216 47.8188 -0.943 49
GU.LSD.HHE. 2010-04-25T06:19:58.49 0.1 undecidable manual Pg 229 82.251 -0.07 91
IV.MRGE.HHN. 2010-04-25T06:19:56.52 0.3 undecidable manual Pg 253 69.8745 -0.136 65
IV.FIR.HHE. 2010-04-25T06:19:53.47 10.0 undecidable manual Pg 0 0 0
GU.TRAV.HHN. 2010-04-25T06:19:53.59 0.1 positive manual Pg 196 50.8158 -0.123 94
GU.CIRO.HHZ. 2010-04-25T06:19:53.07 0.1 positive manual Pg 216 47.8188 -0.184 98
GU.SATI.HHZ. 2010-04-25T06:19:49.35 0.1 undecidable manual Sg 207 9.6792 0.046 65
CH.MMK.HHE. 2010-04-25T06:19:48.52 0.1 undecidable manual Sg 15 11.3775 -1.184 40
GU.SATI.HHZ. 2010-04-25T06:19:47.49 0.1 positive manual Pg 207 9.6792 0.27 100
CH.MMK.HHE. 2010-04-25T06:19:46.98 0.1 undecidable manual Pg 15 11.3775 -0.471 88
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