Earthquake with magnitude of Md 2.0 on date 21-03-1989 and time 11:26:07 (Italy) in region 2 km SW Pioraco (MC)

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

  • 21-03-1989 10:26:07 (UTC)
  • 21-03-1989 11:26:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.16, 12.97 at 6 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
Pioraco MC 2 1134 1134
Sefro MC 2 422 1556
Fiuminata MC 4 1402 2958
Camerino MC 9 6974 9932
Castelraimondo MC 9 4587 14519
Serravalle di Chienti MC 10 1070 15589
Esanatoglia MC 10 2034 17623
Muccia MC 11 915 18538
Matelica MC 11 9981 28519
Gagliole MC 12 620 29139
Pievebovigliana MC 15 866 30005
Pieve Torina MC 15 1458 31463
Nocera Umbra PG 16 5839 37302
Gualdo Tadino PG 17 15208 52510
Fiordimonte MC 17 202 52712
Cerreto d'Esi AN 18 3817 56529
Serrapetrona MC 18 966 57495
San Severino Marche MC 18 12726 70221
Monte Cavallo MC 19 145 70366

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
67 Km SW of Ancona (100861 inhabitants)
72 Km NE of Terni (111501 inhabitants)
76 Km S of Fano (60888 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
83 Km S of Pesaro (94582 inhabitants)
94 Km E of Arezzo (99543 inhabitants)
97 Km NW of L'Aquila (69753 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 1989-03-21
10:26:07
43.16 12.97 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 88709
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-03-21 10:26:07 ± 0.136
Latitude 43.16 ± 0.01
Longitude 12.97 ± 0.01
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 88709

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) 834.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
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) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00534
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 88709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:23:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AM8.Z. 1989-03-21T10:26:29.90 10.0 undecidable manual SG 49 0.0053 0.46 0
--.AM8.Z. 1989-03-21T10:26:19.90 10.0 undecidable manual PG 49 0.0053 -0.26 0.2
--.SS8.Z. 1989-03-21T10:26:17.20 10.0 undecidable manual SG 129 0.0022 0.07 0.8
--.ASS.Z. 1989-03-21T10:26:17.50 10.0 undecidable manual SG 246 0.0023 0.04 0.6
--.SS8.Z. 1989-03-21T10:26:13.00 10.0 undecidable manual PG 129 0.0022 -0.06 1.3
--.ASS.Z. 1989-03-21T10:26:13.30 10.0 undecidable manual PG 246 0.0023 0.05 1.4
--.CM8.Z. 1989-03-21T10:26:12.90 10.0 undecidable manual SG 75 0.0011 0.02 0.9
--.CM8.Z. 1989-03-21T10:26:10.60 10.0 undecidable manual PG 75 0.0011 0 2.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download