Earthquake with magnitude of Md 2.2 on date 11-05-1989 and time 02:30:17 (UTC) in region 6 km NW Preci (PG)

A magnitude Md 2.2 earthquake occured in region: 6 km NW Preci (PG), on

  • 11-05-1989 02:30:17 (UTC)
  • 11-05-1989 04:30:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9250, 13.0100 at 10 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 6 724 724
Visso MC 7 1107 1831
Sellano PG 8 1079 2910
Monte Cavallo MC 8 145 3055
Ussita MC 11 444 3499
Castelsantangelo sul Nera MC 12 281 3780
Pieve Torina MC 14 1458 5238
Cerreto di Spoleto PG 14 1075 6313
Fiordimonte MC 14 202 6515
Norcia PG 16 4957 11472
Pievebovigliana MC 17 866 12338
Serravalle di Chienti MC 17 1070 13408
Fiastra MC 17 559 13967
Muccia MC 18 915 14882
Acquacanina MC 18 121 15003
Bolognola MC 19 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
93 Km NE of Viterbo (67173 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 1989-05-11
02:30:17
42.925 13.01 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 91319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-05-11 02:30:17 ± 0.164
Latitude 42.9250 ± 0.0099
Longitude 13.0100 ± 0.0070
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 91319

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) 1242.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00389
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 91319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:25:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ALP.Z. 1989-05-11T02:30:33.60 10.0 undecidable manual SG 109 0.4329 0.38 0.1
--.ASS.Z. 1989-05-11T02:30:29.00 10.0 undecidable manual SG 298 0.2886 0.19 0.4
--.CM8.Z. 1989-05-11T02:30:28.60 10.0 undecidable manual SG 20 0.2775 0.06 0.9
--.ALP.Z. 1989-05-11T02:30:26.10 10.0 undecidable manual PG 109 0.4329 -0.44 0.2
--.SS8.Z. 1989-05-11T02:30:25.20 10.0 undecidable manual SG 63 0.1776 0.07 0.9
--.ASS.Z. 1989-05-11T02:30:24.00 10.0 undecidable manual PG 298 0.2886 0.01 1.6
--.CM8.Z. 1989-05-11T02:30:23.70 10.0 undecidable manual PG 20 0.2775 -0.13 2.5
--.SS8.Z. 1989-05-11T02:30:22.00 10.0 undecidable manual PG 63 0.1776 0.13 1.3
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