Earthquake with magnitude of ML 1.8 on date 22-03-2009 and time 16:04:28 (Italy) in region 6 km E Cerreto di Spoleto (PG)

A magnitude ML 1.8 earthquake occured in region: 6 km E Cerreto di Spoleto (PG), on

  • 22-03-2009 15:04:28 (UTC)
  • 22-03-2009 16:04:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8330, 12.9890 at 9 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
Cerreto di Spoleto PG 6 1075 1075
Preci PG 7 724 1799
Sellano PG 8 1079 2878
Norcia PG 10 4957 7835
Vallo di Nera PG 12 364 8199
Cascia PG 13 3217 11416
Visso MC 14 1107 12523
Poggiodomo PG 14 117 12640
Castelsantangelo sul Nera MC 15 281 12921
Sant'Anatolia di Narco PG 17 564 13485
Campello sul Clitunno PG 17 2442 15927
Ussita MC 18 444 16371
Monte Cavallo MC 18 145 16516
Scheggino PG 18 461 16977

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SE of Foligno (57155 inhabitants)
41 Km NE of Terni (111501 inhabitants)
58 Km SE of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
98 Km N of Tivoli (56533 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 1.7
ML 1.8
2009-03-22
15:04:28
42.833 12.989 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 751689
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-03-22 15:04:28 ± 0.18
Latitude 42.8330 ± 0.0072
Longitude 12.9890 ± 0.0110
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 751689

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1085
Semi-minor axis of confidence ellipse (meter) 422
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 1204.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 250
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42268
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 751689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:12:47

Md:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 751689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:12:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.STR3.BHE. 2009-03-22T15:04:59.74 10.0 undecidable manual Pg 0 0 0
IV.LPEL.HHZ. 2009-03-22T15:04:49.50 10.0 undecidable manual Pg 0 0 0
IV.OC9.EHE. 2009-03-22T15:04:48.68 10.0 undecidable manual Pg 0 0 0
IV.BRSN.SHZ. 2009-03-22T15:04:46.77 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-03-22T15:04:43.79 0.1 undecidable manual Sg 355 46.9197 0.227 91
IV.SNTG.SHZ. 2009-03-22T15:04:36.79 0.1 undecidable manual Pg 355 46.9197 -0.262 90
IV.FDMO.HHE. 2009-03-22T15:04:36.98 0.1 undecidable manual Sg 19 23.9538 -0.076 97
IV.CESI.HHN. 2009-03-22T15:04:35.93 0.1 undecidable manual Sg 340 20.2686 0.055 98
IV.FDMO.HHE. 2009-03-22T15:04:33.18 0.1 undecidable manual Pg 19 23.9538 -0.115 97
IV.NRCA.HHE. 2009-03-22T15:04:32.99 0.1 undecidable manual Sg 90 10.1787 0.06 100
IV.CESI.HHN. 2009-03-22T15:04:32.65 0.1 undecidable manual Pg 340 20.2686 0.036 99
IV.FSSB.HHZ. 2009-03-22T15:04:32.54 10.0 undecidable manual Sg 0 0 0
IV.NRCA.HHE. 2009-03-22T15:04:30.97 0.1 undecidable manual Pg 90 10.1787 0.057 100
IV.FSSB.HHZ. 2009-03-22T15:04:26.15 10.0 undecidable manual Pg 0 0 0
IV.BDI.HHE. 2009-03-22T15:04:26.09 10.0 undecidable manual Pg 0 0 0
IV.SNAL.HHE. 2009-03-22T15:04:13.25 10.0 undecidable manual Pg 0 0 0
CH.MUGIO.HHE. 2009-03-22T15:04:07.57 10.0 undecidable manual Pg 0 0 0
MN.AQU.HHE. 2009-03-22T15:03:56.47 10.0 undecidable manual Pg 0 0 0
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