Earthquake with magnitude of Md 2.0 on date 03-01-1989 and time 22:44:23 (Italy) in region 2 km W Ussita (MC)

A magnitude Md 2.0 earthquake occured in region: 2 km W Ussita (MC), on

  • 03-01-1989 21:44:23 (UTC)
  • 03-01-1989 22:44:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.95, 13.11 at 15 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
Ussita MC 2 444 444
Visso MC 3 1107 1551
Castelsantangelo sul Nera MC 7 281 1832
Fiordimonte MC 10 202 2034
Preci PG 10 724 2758
Monte Cavallo MC 10 145 2903
Fiastra MC 10 559 3462
Acquacanina MC 10 121 3583
Bolognola MC 11 142 3725
Pieve Torina MC 12 1458 5183
Pievebovigliana MC 13 866 6049
Muccia MC 16 915 6964
Sellano PG 17 1079 8043
Norcia PG 18 4957 13000
Sarnano MC 18 3264 16264
Montemonaco AP 19 604 16868
Serravalle di Chienti MC 19 1070 17938
Montefortino FM 19 1178 19116

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
58 Km NE of Terni (111501 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
98 Km NW of Montesilvano (53738 inhabitants)
100 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
Rev 1000 Md 2.0
ML-VAX 1.5
1989-01-03
21:44:23
42.95 13.11 15 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 84619
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-01-03 21:44:23 ± 0.078
Latitude 42.95 ± 0.01
Longitude 13.11 ± 0.00
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 84619

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) 732.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
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) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00332
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

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 84619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:19:26

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 84619
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 Takeoff_angle Residual Weight
--.ALP.Z. 1989-01-03T21:44:37.30 10.0 undecidable manual SG 117 0.0033 -0.2 0.2
--.ASS.Z. 1989-01-03T21:44:36.77 10.0 undecidable manual SG 288 0.0032 -0.09 0.4
--.CM8.Z. 1989-01-03T21:44:33.30 10.0 undecidable manual SG 5 0.0022 -0.16 0.3
--.ASS.Z. 1989-01-03T21:44:31.17 10.0 positive manual PG 288 0.0032 -0.02 2.7
--.ALP.Z. 1989-01-03T21:44:31.60 10.0 undecidable manual PG 117 0.0033 0.04 1.2
--.SS8.Z. 1989-01-03T21:44:29.40 10.0 undecidable manual SG 57 0.0009 -0.14 0.4
--.CM8.Z. 1989-01-03T21:44:29.30 10.0 undecidable manual PG 5 0.0022 0.07 1.3
--.SS8.Z. 1989-01-03T21:44:27.10 10.0 undecidable manual PG 57 0.0009 0.13 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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