Earthquake with magnitude of Md 2.2 on date 06-12-1988 and time 23:46:45 (Italy) in region 5 km SW Monte Cavallo (MC)

A magnitude Md 2.2 earthquake occured in region: 5 km SW Monte Cavallo (MC), on

  • 06-12-1988 22:46:45 (UTC)
  • 06-12-1988 23:46:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9520, 12.9780 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
Monte Cavallo MC 5 145 145
Sellano PG 8 1079 1224
Visso MC 9 1107 2331
Preci PG 10 724 3055
Pieve Torina MC 12 1458 4513
Fiordimonte MC 13 202 4715
Ussita MC 13 444 5159
Serravalle di Chienti MC 14 1070 6229
Pievebovigliana MC 15 866 7095
Cerreto di Spoleto PG 16 1075 8170
Muccia MC 16 915 9085
Castelsantangelo sul Nera MC 16 281 9366
Fiastra MC 17 559 9925
Acquacanina MC 18 121 10046
Norcia PG 20 4957 15003

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
51 Km NE of Terni (111501 inhabitants)
68 Km W of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
99 Km S of Fano (60888 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 1988-12-06
22:46:45
42.952 12.978 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 82769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-12-06 22:46:45 ± 0.227
Latitude 42.9520 ± 0.0130
Longitude 12.9780 ± 0.0148
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 82769

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) 1886.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00486
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 82769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:17:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ALP.Z. 1988-12-06T22:47:03.10 10.0 undecidable manual SG 111 0.4551 0.3 0.5
--.ARV.Z. 1988-12-06T22:46:57.40 10.0 undecidable manual PG 357 0.5439 0.19 0.9
--.CIO.Z. 1988-12-06T22:46:56.80 10.0 undecidable manual SG 26 0.2664 0.21 0.7
--.ALP.Z. 1988-12-06T22:46:55.90 10.0 undecidable manual PG 111 0.4551 0.2 1
--.ASS.Z. 1988-12-06T22:46:55.60 10.0 undecidable manual SG 295 0.2553 -0.7 0.1
--.SS8.Z. 1988-12-06T22:46:53.40 10.0 undecidable manual SG 73 0.1887 -0.67 0.1
--.ASS.Z. 1988-12-06T22:46:52.20 10.0 undecidable manual PG 295 0.2553 0.27 1.1
--.CIO.Z. 1988-12-06T22:46:52.30 10.0 undecidable manual PG 26 0.2664 0.2 2.5
--.SS8.Z. 1988-12-06T22:46:50.40 10.0 undecidable manual PG 73 0.1887 -0.25 2.2
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