Earthquake with magnitude of Md 2.2 on date 31-05-1989 and time 11:14:12 (Italy) in region 2 km S Apiro (MC)

A magnitude Md 2.2 earthquake occured in region: 2 km S Apiro (MC), on

  • 31-05-1989 09:14:12 (UTC)
  • 31-05-1989 11:14:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3720, 13.1370 at 5 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
Apiro MC 2 2280 2280
Poggio San Vicino MC 5 246 2526
Cingoli MC 7 10352 12878
Staffolo AN 8 2253 15131
Cupramontana AN 8 4756 19887
San Paolo di Jesi AN 10 933 20820
Maiolati Spontini AN 12 6248 27068
Monte Roberto AN 12 3061 30129
Castelbellino AN 13 4947 35076
Serra San Quirico AN 13 2850 37926
Cerreto d'Esi AN 13 3817 41743
Rosora AN 14 1985 43728
Mergo AN 14 1037 44765
Castelplanio AN 14 3540 48305
Gagliole MC 16 620 48925
Treia MC 16 9403 58328
San Severino Marche MC 16 12726 71054
Matelica MC 16 9981 81035
Poggio San Marcello AN 16 693 81728
Appignano MC 17 4213 85941
Genga AN 18 1797 87738
Montecarotto AN 18 1987 89725
Filottrano AN 19 9499 99224
Castelraimondo MC 19 4587 103811
Jesi AN 19 40399 144210
Fabriano AN 19 31480 175690
Santa Maria Nuova AN 20 4179 179869

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Ancona (100861 inhabitants)
53 Km S of Fano (60888 inhabitants)
58 Km NE of Foligno (57155 inhabitants)
63 Km S of Pesaro (94582 inhabitants)
67 Km E of Perugia (166134 inhabitants)
89 Km SE of Rimini (147750 inhabitants)
92 Km NW of Teramo (54892 inhabitants)
99 Km NE of Terni (111501 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 2.2 1989-05-31
09:14:12
43.372 13.137 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 92399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-05-31 09:14:12 ± 0.406
Latitude 43.3720 ± 0.0201
Longitude 13.1370 ± 0.0284
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 92399

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) 3209.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00421
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 92399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:26:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 1989-05-31T09:14:31.50 10.0 undecidable manual SG 228 0.4662 0.66 0.3
--.AM8.Z. 1989-05-31T09:14:27.90 10.0 undecidable manual SG 62 0.3774 0.24 0.8
--.ASS.Z. 1989-05-31T09:14:23.00 10.0 undecidable manual PG 228 0.4662 -0.25 1.2
--.MC8.Z. 1989-05-31T09:14:22.90 10.0 undecidable manual SG 110 0.2109 1.34 0
--.AM8.Z. 1989-05-31T09:14:20.70 10.0 undecidable manual PG 62 0.3774 -0.72 1.3
--.CM8.Z. 1989-05-31T09:14:19.50 10.0 undecidable manual SG 178 0.1665 -0.44 0.7
--.MC8.Z. 1989-05-31T09:14:18.20 10.0 undecidable manual PG 110 0.2109 0.3 1.4
--.CM8.Z. 1989-05-31T09:14:16.50 10.0 undecidable manual PG 178 0.1665 -0.46 2.3
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