Earthquake with magnitude of Md 2.1 on date 31-08-1988 and time 18:17:52 (UTC) in region 4 km SW Cingoli (MC)

A magnitude Md 2.1 earthquake occured in region: 4 km SW Cingoli (MC), on

  • 31-08-1988 18:17:52 (UTC)
  • 31-08-1988 20:17:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3410, 13.1880 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
Cingoli MC 5 10352 10352
Apiro MC 7 2280 12632
Poggio San Vicino MC 10 246 12878
Staffolo AN 10 2253 15131
Treia MC 11 9403 24534
San Severino Marche MC 12 12726 37260
San Paolo di Jesi AN 13 933 38193
Appignano MC 13 4213 42406
Cupramontana AN 13 4756 47162
Gagliole MC 15 620 47782
Pollenza MC 15 6618 54400
Maiolati Spontini AN 16 6248 60648
Monte Roberto AN 16 3061 63709
Cerreto d'Esi AN 17 3817 67526
Tolentino MC 17 20069 87595
Castelbellino AN 17 4947 92542
Filottrano AN 17 9499 102041
Matelica MC 17 9981 112022
Castelraimondo MC 18 4587 116609
Serrapetrona MC 18 966 117575
Serra San Quirico AN 18 2850 120425
Rosora AN 19 1985 122410
Mergo AN 19 1037 123447
Castelplanio AN 19 3540 126987
Belforte del Chienti MC 20 1886 128873
Santa Maria Nuova AN 20 4179 133052

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Ancona (100861 inhabitants)
58 Km S of Fano (60888 inhabitants)
58 Km NE of Foligno (57155 inhabitants)
67 Km SE of Pesaro (94582 inhabitants)
70 Km E of Perugia (166134 inhabitants)
87 Km NW of Teramo (54892 inhabitants)
94 Km SE of Rimini (147750 inhabitants)
97 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 2.1 1988-08-31
18:17:52
43.341 13.188 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 76579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-08-31 18:17:52 ± 0.285
Latitude 43.3410 ± 0.0143
Longitude 13.1880 ± 0.0269
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 76579

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) 2696.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00130
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
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 76579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:12:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 1988-08-31T18:18:11.50 10.0 undecidable manual SG 234 0.4773 0.97 0.1
--.AM8.Z. 1988-08-31T18:18:07.18 10.0 undecidable manual SG 55 0.3552 0.75 0.3
--.SS8.Z. 1988-08-31T18:18:05.68 10.0 undecidable manual SG 174 0.333 0.36 0.6
--.ASS.Z. 1988-08-31T18:18:02.50 10.0 undecidable manual PG 234 0.4773 -0.31 1.4
--.AM8.Z. 1988-08-31T18:18:00.50 10.0 undecidable manual PG 55 0.3552 -0.4 1.4
--.SS8.Z. 1988-08-31T18:17:59.45 10.0 undecidable manual PG 174 0.333 -0.35 1.6
--.CM8.Z. 1988-08-31T18:17:58.74 10.0 undecidable manual SG 192 0.1443 0.44 0.8
--.CM8.Z. 1988-08-31T18:17:55.48 10.0 undecidable manual PG 192 0.1443 -0.28 1.8
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