Earthquake with magnitude of ML 0.4 on date 22-05-2014 and time 00:57:58 (UTC) in region 4 km W Pietralunga (PG)

A magnitude ML 0.4 earthquake occured in region: 4 km W Pietralunga (PG), on

  • 22-05-2014 00:57:58 (UTC)
  • 22-05-2014 02:57:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4520, 12.3950 at 5 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 4 2111 2111
Montone PG 11 1680 3791
Apecchio PU 12 1882 5673
CittĂ  di Castello PG 13 39913 45586
Umbertide PG 17 16681 62267
Piobbico PU 18 2029 64296
Gubbio PG 18 32216 96512
Monte Santa Maria Tiberina PG 19 1183 97695
Cantiano PU 19 2245 99940

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Perugia (166134 inhabitants)
41 Km E of Arezzo (99543 inhabitants)
61 Km NW of Foligno (57155 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
67 Km SW of Fano (60888 inhabitants)
69 Km S of Rimini (147750 inhabitants)
77 Km S of Cesena (96758 inhabitants)
87 Km E of Siena (53903 inhabitants)
90 Km SE of Forlì (117913 inhabitants)
93 Km W of Ancona (100861 inhabitants)
98 Km E of Firenze (382808 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 0.4 2014-05-22
00:57:58
43.4517 12.3948 5 2015-09-21
09:36:50
Bollettino Sismico Italiano INGV 17448881
Reviewed
Rev100
ML 0.4 2014-05-22
00:57:56
43.3603 12.5385 9 2014-10-21
12:08:56
Sala Sismica INGV-Roma 6557361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-05-22 00:57:58 ± 0.54
Latitude 43.4517 ± 0.0126
Longitude 12.3948 ± 0.0372
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 17448881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3127
Semi-minor axis of confidence ellipse (meter) 614
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 3130.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 237
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00540
Epicentral distance of station farthest from the epicenter (degree) 0.13220
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 6557361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-05-22 01:14:48

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 17448881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-09 11:20:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2014-05-22T00:58:03.36 0.1 undecidable manual S 50 14.6742 109 -0.17 97
IV.PIEI.HHZ. 2014-05-22T00:58:01.68 0.3 undecidable manual P 50 14.6742 109 0.42 69
IV.ATVO.HHZ. 2014-05-22T00:58:01.46 0.1 undecidable manual S 173 7.7811 123 0.09 100
IV.ATPI.EHE. 2014-05-22T00:58:00.03 0.3 undecidable manual S 99 0.5994 173 0.1 75
IV.ATVO.HHZ. 2014-05-22T00:57:59.86 0.1 undecidable manual P 173 7.7811 123 -0.15 98
IV.ATPI.EHE. 2014-05-22T00:57:59.04 0.1 undecidable manual P 99 0.5994 173 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:0.3 0.000026299999999999996 0.16 AML other m 2014-05-22T00:58:03.44
IV.PIEI.HHE. ML:0.4 0.00002925 0.24 AML other m 2014-05-22T00:58:04.30
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