Earthquake with magnitude of ML 1.0 on date 23-05-2008 and time 01:41:21 (Italy) in region 9 km E Valtopina (PG)

A magnitude ML 1.0 earthquake occured in region: 9 km E Valtopina (PG), on

  • 22-05-2008 23:41:21 (UTC)
  • 23-05-2008 01:41:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0270, 12.8500 at 65 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
Valtopina PG 9 1398 1398
Serravalle di Chienti MC 10 1070 2468
Nocera Umbra PG 11 5839 8307
Monte Cavallo MC 13 145 8452
Foligno PG 14 57155 65607
Spello PG 15 8645 74252
Sefro MC 16 422 74674
Pieve Torina MC 17 1458 76132
Sellano PG 17 1079 77211
Muccia MC 17 915 78126
Trevi PG 19 8469 86595
Fiuminata MC 19 1402 87997
Pievebovigliana MC 20 866 88863
Fiordimonte MC 20 202 89065
Assisi PG 20 28299 117364

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NE of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
54 Km NE of Terni (111501 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
87 Km NW of L'Aquila (69753 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
92 Km S of Fano (60888 inhabitants)
92 Km SE of Arezzo (99543 inhabitants)
98 Km S of Pesaro (94582 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 1.8
ML 1.0
2008-05-22
23:41:21
43.027 12.85 65 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 692199
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2008-05-22 23:41:21 ± 0.2
Latitude 43.0270 ± 0.0180
Longitude 12.8500 ± 0.0529
Depth (km) 65 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 692199

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4487
Semi-minor axis of confidence ellipse (meter) 1610
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 4742.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 241
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) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.27339
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 692199
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 13:06:52

Md:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 692199
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 13:06:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.SHZ. 2008-05-22T23:41:40.01 0.3 undecidable manual Sg 16 26.3514 0.086 73
IV.NRCA.SHZ. 2008-05-22T23:41:40.44 0.3 undecidable manual Sg 135 30.3474 0.118 71
IV.FDMO.HHE. 2008-05-22T23:41:39.37 0.3 undecidable manual Sg 87 19.2696 0.029 74
IV.CESI.HHE. 2008-05-22T23:41:38.50 0.6 undecidable manual Sg 119 5.0949 -0.187 49
IV.SNTG.SHZ. 2008-05-22T23:41:32.28 0.1 undecidable manual Pg 16 26.3514 0.046 97
IV.NRCA.SHZ. 2008-05-22T23:41:32.51 0.1 undecidable manual Pg 135 30.3474 0.043 96
IV.CESI.HHE. 2008-05-22T23:41:31.59 0.1 undecidable manual Pg 119 5.0949 0.072 100
IV.FDMO.HHE. 2008-05-22T23:41:31.70 0.1 undecidable manual Pg 87 19.2696 -0.195 95
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