Earthquake with magnitude of Md 2.0 on date 27-01-1989 and time 15:08:37 (Italy) in region 3 km SE Norcia (PG)

A magnitude Md 2.0 earthquake occured in region: 3 km SE Norcia (PG), on

  • 27-01-1989 14:08:37 (UTC)
  • 27-01-1989 15:08:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.77, 13.11 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
Norcia PG 3 4957 4957
Cascia PG 9 3217 8174
Preci PG 14 724 8898
Accumoli RI 14 667 9565
Castelsantangelo sul Nera MC 15 281 9846
Poggiodomo PG 15 117 9963
Arquata del Tronto AP 16 1178 11141
Cerreto di Spoleto PG 17 1075 12216
Cittareale RI 17 482 12698
Monteleone di Spoleto PG 18 599 13297
Visso MC 18 1107 14404
Vallo di Nera PG 20 364 14768
Ussita MC 20 444 15212
Sellano PG 20 1079 16291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SE of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
93 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
98 Km W of Chieti (51815 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 2.0 1989-01-27
14:08:37
42.77 13.11 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 86179
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-01-27 14:08:37 ± 0.217
Latitude 42.77 ± 0.01
Longitude 13.11 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 86179

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) 1614.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00437
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

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 86179
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:20:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1989-01-27T14:08:56.00 10.0 undecidable manual SG 219 0.0044 0.83 0
--.CM8.Z. 1989-01-27T14:08:53.20 10.0 undecidable manual SG 3 0.0038 0.16 0.7
--.ASS.Z. 1989-01-27T14:08:53.65 10.0 undecidable manual SG 311 0.004 0.07 0.5
--.ALP.Z. 1989-01-27T14:08:50.20 10.0 undecidable manual SG 87 0.003 0.06 0.8
--.MNS.Z. 1989-01-27T14:08:47.00 10.0 undecidable manual PG 219 0.0044 -0.65 0.1
--.SS8.Z. 1989-01-27T14:08:47.50 10.0 undecidable manual SG 20 0.0023 -0.02 0.8
--.CM8.Z. 1989-01-27T14:08:46.30 10.0 undecidable manual PG 3 0.0038 -0.12 2.3
--.ASS.Z. 1989-01-27T14:08:46.92 10.0 undecidable manual PG 311 0.004 0.19 1
--.ALP.Z. 1989-01-27T14:08:44.80 10.0 undecidable manual PG 87 0.003 0.05 2.6
--.SS8.Z. 1989-01-27T14:08:43.10 10.0 undecidable manual PG 20 0.0023 -0.13 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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