Earthquake with magnitude of Md 2.2 on date 13-02-1989 and time 20:02:43 (Italy) in region 4 km N Cerreto di Spoleto (PG)

A magnitude Md 2.2 earthquake occured in region: 4 km N Cerreto di Spoleto (PG), on

  • 13-02-1989 19:02:43 (UTC)
  • 13-02-1989 20:02:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.86, 12.92 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
Cerreto di Spoleto PG 4 1075 1075
Sellano PG 4 1079 2154
Preci PG 10 724 2878
Vallo di Nera PG 11 364 3242
Campello sul Clitunno PG 12 2442 5684
Trevi PG 14 8469 14153
Sant'Anatolia di Narco PG 15 564 14717
Norcia PG 16 4957 19674
Poggiodomo PG 16 117 19791
Visso MC 16 1107 20898
Monte Cavallo MC 17 145 21043
Cascia PG 17 3217 24260
Scheggino PG 17 461 24721
Castelsantangelo sul Nera MC 20 281 25002
Spoleto PG 20 38218 63220

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
52 Km SE of Perugia (166134 inhabitants)
68 Km W of Teramo (54892 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
100 Km N of Tivoli (56533 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 2.2 1989-02-13
19:02:43
42.86 12.92 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 87039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-02-13 19:02:43 ± 0.354
Latitude 42.86 ± 0.02
Longitude 12.92 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 87039

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) 3002.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.00575
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 87039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:21:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ARV.Z. 1989-02-13T19:03:07.00 10.0 undecidable manual SG 1 0.0057 1.35 0.2
--.ALP.Z. 1989-02-13T19:03:00.10 10.0 undecidable manual SG 98 0.0043 -0.3 0.6
--.CM8.Z. 1989-02-13T19:02:57.40 10.0 undecidable manual SG 25 0.0033 0.32 1
--.ARV.Z. 1989-02-13T19:02:55.00 10.0 undecidable manual PG 1 0.0057 -1.1 0.6
--.ASS.Z. 1989-02-13T19:02:55.00 10.0 undecidable manual SG 316 0.0025 0.87 0.4
--.ALP.Z. 1989-02-13T19:02:54.80 10.0 undecidable manual PG 98 0.0043 1.72 0.2
--.SS8.Z. 1989-02-13T19:02:53.60 10.0 undecidable manual SG 56 0.0024 -0.15 1
--.MNS.Z. 1989-02-13T19:02:53.00 10.0 undecidable manual PG 200 0.0045 -0.48 1.4
--.ASS.Z. 1989-02-13T19:02:50.00 10.0 undecidable manual PG 316 0.0025 0.54 1.5
--.CM8.Z. 1989-02-13T19:02:50.30 10.0 undecidable manual PG 25 0.0033 -0.86 2.2
--.SS8.Z. 1989-02-13T19:02:49.10 10.0 undecidable manual PG 56 0.0024 -0.14 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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