Earthquake with magnitude of Md 2.2 on date 12-10-1997 and time 19:26:56 (Italy) in region 1 km NE Preci (PG)

A magnitude Md 2.2 earthquake occured in region: 1 km NE Preci (PG), on

  • 12-10-1997 17:26:56 (UTC)
  • 12-10-1997 19:26:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8910, 13.0460 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
Preci PG 1 724 724
Visso MC 6 1107 1831
Castelsantangelo sul Nera MC 9 281 2112
Sellano PG 10 1079 3191
Ussita MC 10 444 3635
Norcia PG 12 4957 8592
Monte Cavallo MC 12 145 8737
Cerreto di Spoleto PG 13 1075 9812
Fiordimonte MC 17 202 10014
Pieve Torina MC 17 1458 11472
Fiastra MC 19 559 12031
Acquacanina MC 19 121 12152
Bolognola MC 19 142 12294
Cascia PG 19 3217 15511
Pievebovigliana MC 19 866 16377

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
59 Km E of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
99 Km W of Montesilvano (53738 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 2.2
ML-VAX 1.9
1997-10-12
17:26:56
42.891 13.046 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 296619
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-12 17:26:56 ± 0.36
Latitude 42.8910 ± 0.0119
Longitude 13.0460 ± 0.0462
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 296619

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 3993.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 214
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00300
Epicentral distance of station farthest from the epicenter (degree) 0.00737
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 296619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:38:58

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 296619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1997-10-12T17:27:19.54 10.0 undecidable manual SG 352 0.6105 0.18 0.7
--.MNS.Z. 1997-10-12T17:27:17.45 10.0 undecidable manual SG 207 0.5661 -0.68 0.3
--.FB9.Z. 1997-10-12T17:27:13.43 10.0 undecidable manual PG 346 0.8214 -0.35 1.3
--.MNS.Z. 1997-10-12T17:27:09.35 10.0 undecidable manual PG 207 0.5661 0.21 1.9
--.ARV.Z. 1997-10-12T17:27:09.72 10.0 undecidable manual PG 352 0.6105 -0.13 1.9
--.ASS.Z. 1997-10-12T17:27:08.98 10.0 undecidable manual SG 300 0.333 -0.88 0.2
--.ASS.Z. 1997-10-12T17:27:05.17 10.0 undecidable manual PG 300 0.333 0.81 0.6
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