Earthquake with magnitude of ML 0.4 on date 18-04-2010 and time 07:33:35 (UTC) in region 5 km NW Pietralunga (PG)

A magnitude ML 0.4 earthquake occured in region: 5 km NW Pietralunga (PG), on

  • 18-04-2010 07:33:35 (UTC)
  • 18-04-2010 09:33:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4830, 12.4100 at 8 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
Pietralunga PG 5 2111 2111
Apecchio PU 9 1882 3993
CittĂ  di Castello PG 14 39913 43906
Piobbico PU 14 2029 45935
Montone PG 15 1680 47615
Cantiano PU 18 2245 49860
Mercatello sul Metauro PU 19 1378 51238
Gubbio PG 20 32216 83454

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Perugia (166134 inhabitants)
43 Km E of Arezzo (99543 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
63 Km NW of Foligno (57155 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km S of Rimini (147750 inhabitants)
74 Km S of Cesena (96758 inhabitants)
88 Km SE of Forlì (117913 inhabitants)
89 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
98 Km E of Firenze (382808 inhabitants)
99 Km SE of Faenza (58541 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 1.2
ML 0.4
2010-04-18
07:33:35
43.483 12.41 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1035539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-04-18 07:33:35 ± 0.07
Latitude 43.4830 ± 0.0018
Longitude 12.4100 ± 0.0012
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1035539

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 189
Semi-minor axis of confidence ellipse (meter) 66
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
Circular confidence region, given by single value of horizontal uncertainty (meter) 223.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.12321
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1035539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:54:23

Md:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1035539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:54:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BADI.EHN. 2010-04-18T07:33:40.50 0.1 undecidable manual Sg 283 13.6752 0.059 98
IV.PIEI.HHE. 2010-04-18T07:33:39.88 0.1 undecidable manual Sg 60 11.6772 0.034 99
IV.ATVO.HHN. 2010-04-18T07:33:39.76 0.1 undecidable manual Sg 181 11.1777 0.04 99
IV.BADI.EHN. 2010-04-18T07:33:38.08 0.1 undecidable manual Pg 283 13.6752 -0.079 97
IV.ATVO.HHN. 2010-04-18T07:33:37.73 0.1 undecidable manual Pg 181 11.1777 -0.013 99
IV.PIEI.HHE. 2010-04-18T07:33:37.85 0.1 undecidable manual Pg 60 11.6772 0.033 99
IV.ATPC.HHN. 2010-04-18T07:33:37.92 0.1 undecidable manual Sg 94 3.7962 -0.04 100
IV.ATPC.HHN. 2010-04-18T07:33:36.70 0.1 undecidable manual Pg 94 3.7962 -0.028 100
IV.OFFI.HHN. 2010-04-18T07:33:05.13 10.0 undecidable manual Pg 0 0 0
IV.ZCCA.HHZ. 2010-04-18T07:33:01.30 10.0 undecidable manual Pg 0 0 0
IV.FAEN.HHZ. 2010-04-18T07:32:54.72 10.0 undecidable manual Sg 0 0 0
IV.FAEN.HHZ. 2010-04-18T07:32:50.22 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download