Earthquake with magnitude of Md 1.9 on date 31-01-1989 and time 11:43:22 (UTC) in region 3 km E Monte Cavallo (MC)

A magnitude Md 1.9 earthquake occured in region: 3 km E Monte Cavallo (MC), on

  • 31-01-1989 11:43:22 (UTC)
  • 31-01-1989 12:43:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0010, 13.0330 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 3 145 145
Pieve Torina MC 5 1458 1603
Fiordimonte MC 6 202 1805
Pievebovigliana MC 8 866 2671
Visso MC 9 1107 3778
Muccia MC 9 915 4693
Serravalle di Chienti MC 10 1070 5763
Ussita MC 11 444 6207
Fiastra MC 11 559 6766
Acquacanina MC 12 121 6887
Preci PG 14 724 7611
Sellano PG 15 1079 8690
Castelsantangelo sul Nera MC 15 281 8971
Camerino MC 15 6974 15945
Bolognola MC 16 142 16087
Sefro MC 18 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
54 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
67 Km NW of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 inhabitants)
100 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 1.9 1989-01-31
11:43:22
43.001 13.033 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 86339
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-01-31 11:43:22 ± 0.571
Latitude 43.0010 ± 0.0133
Longitude 13.0330 ± 0.0138
Depth (km) 10 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 86339

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) 1854.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00445
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:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 86339
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:21:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1989-01-31T11:43:42.20 10.0 undecidable manual SG 352 0.4995 1.27 0
--.ALP.Z. 1989-01-31T11:43:39.50 10.0 undecidable manual SG 119 0.444 0.23 0.5
--.ARV.Z. 1989-01-31T11:43:33.40 10.0 undecidable manual PG 352 0.4995 0.08 1
--.ASS.Z. 1989-01-31T11:43:33.50 10.0 undecidable manual SG 282 0.2775 -0.46 0.3
--.ALP.Z. 1989-01-31T11:43:32.50 10.0 undecidable manual PG 119 0.444 0.14 1
--.CM8.Z. 1989-01-31T11:43:31.40 10.0 undecidable manual SG 22 0.2109 -0.17 0.7
--.ASS.Z. 1989-01-31T11:43:29.40 10.0 undecidable manual PG 282 0.2775 0.1 1.3
--.SS8.Z. 1989-01-31T11:43:29.30 10.0 undecidable manual SG 87 0.1443 -0.18 0.7
--.CM8.Z. 1989-01-31T11:43:27.60 10.0 undecidable manual PG 22 0.2109 -0.31 1.8
--.SS8.Z. 1989-01-31T11:43:26.60 10.0 undecidable manual PG 87 0.1443 -0.1 2.6
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