Earthquake with magnitude of Md 2.0 on date 25-07-1991 and time 12:12:25 (Italy) in region 5 km S Cingoli (MC)

A magnitude Md 2.0 earthquake occured in region: 5 km S Cingoli (MC), on

  • 25-07-1991 10:12:25 (UTC)
  • 25-07-1991 12:12:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3290, 13.1990 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
Cingoli MC 5 10352 10352
Apiro MC 9 2280 12632
Treia MC 9 9403 22035
Poggio San Vicino MC 11 246 22281
San Severino Marche MC 11 12726 35007
Staffolo AN 12 2253 37260
Appignano MC 13 4213 41473
Pollenza MC 14 6618 48091
San Paolo di Jesi AN 14 933 49024
Gagliole MC 14 620 49644
Cupramontana AN 15 4756 54400
Tolentino MC 15 20069 74469
Serrapetrona MC 17 966 75435
Filottrano AN 17 9499 84934
Matelica MC 17 9981 94915
Cerreto d'Esi AN 17 3817 98732
Castelraimondo MC 17 4587 103319
Monte Roberto AN 18 3061 106380
Maiolati Spontini AN 18 6248 112628
Castelbellino AN 18 4947 117575
Belforte del Chienti MC 19 1886 119461
Montecassiano MC 20 7125 126586
Serra San Quirico AN 20 2850 129436

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Ancona (100861 inhabitants)
58 Km NE of Foligno (57155 inhabitants)
59 Km S of Fano (60888 inhabitants)
69 Km SE of Pesaro (94582 inhabitants)
70 Km E of Perugia (166134 inhabitants)
85 Km NW of Teramo (54892 inhabitants)
96 Km SE of Rimini (147750 inhabitants)
96 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 2.0
ML-VAX 1.6
1991-07-25
10:12:25
43.329 13.199 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 146279
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-07-25 10:12:25 ± 0.319
Latitude 43.3290 ± 0.0106
Longitude 13.1990 ± 0.0294
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 146279

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) 2657.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 226
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.00429
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 146279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:16:33

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 146279
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(km) Takeoff_angle Residual Weight
--.ASS.Z. 1991-07-25T10:12:42.74 10.0 undecidable manual SG 236 0.4773 0.2 0.6
--.RMF.Z. 1991-07-25T10:12:40.50 10.0 undecidable manual SG 178 0.3663 0.86 0.1
--.ARV.Z. 1991-07-25T10:12:35.74 10.0 undecidable manual SG 312 0.2442 0.52 0.4
--.ASS.Z. 1991-07-25T10:12:34.86 10.0 undecidable manual PG 236 0.4773 -0.37 1.1
--.RMF.Z. 1991-07-25T10:12:33.00 10.0 undecidable manual PG 178 0.3663 -0.29 1.5
--.CIO.Z. 1991-07-25T10:12:31.85 10.0 undecidable manual SG 196 0.1332 0.2 0.8
--.ARV.Z. 1991-07-25T10:12:30.88 10.0 undecidable manual PG 312 0.2442 -0.13 2.1
--.CIO.Z. 1991-07-25T10:12:28.57 10.0 undecidable manual PG 196 0.1332 -0.37 1.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download