Earthquake with magnitude of Md 2.9 on date 22-08-1987 and time 18:03:01 (Italy) in region Costa Marchigiana Pesarese (Pesaro Urbino)

A magnitude Md 2.9 earthquake occured in region: Costa Marchigiana Pesarese (Pesaro Urbino), on

  • 22-08-1987 16:03:01 (UTC)
  • 22-08-1987 18:03:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.038, 13.129 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Pesaro (94582 inhabitants)
23 Km NE of Fano (60888 inhabitants)
45 Km E of Rimini (147750 inhabitants)
56 Km NW of Ancona (100861 inhabitants)
72 Km E of Cesena (96758 inhabitants)
85 Km E of Ravenna (159116 inhabitants)
89 Km E of Forlì (117913 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 2.9
ML-VAX 2.6
1987-08-22
16:03:01
44.038 13.129 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 54299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-08-22 16:03:01 ± 0.253
Latitude 44.0380 ± 0.0135
Longitude 13.1290 ± 0.0244
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 54299

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) 2462.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.00494
Epicentral distance of station farthest from the epicenter (degree) 0.06638
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 9
Type of magnitude Md
Reference to an origin 54299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:52:21

ML:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 54299
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 Takeoff_angle Residual Weight
--.SSF.Z. 1987-08-22T16:06:09.00 10.0 undecidable manual SN 297 0.0664 0.53 0.4
--.LOR.Z. 1987-08-22T16:06:05.50 10.0 undecidable manual SN 299 0.0651 0.48 0.4
--.LBF.Z. 1987-08-22T16:06:01.20 10.0 undecidable manual SN 297 0.0634 0.52 0.4
--.SMF.Z. 1987-08-22T16:06:00.20 10.0 undecidable manual SN 294 0.0631 0.19 0.6
--.BSF.Z. 1987-08-22T16:05:31.20 10.0 undecidable manual SN 312 0.0523 -0.01 0.7
--.SSF.Z. 1987-08-22T16:04:48.59 10.0 undecidable manual PN 297 0.0664 -0.74 0.7
--.LOR.Z. 1987-08-22T16:04:47.70 10.0 undecidable manual PN 299 0.0651 0.37 1.2
--.SMF.Z. 1987-08-22T16:04:44.20 10.0 undecidable manual PN 294 0.0631 -0.24 1.4
--.LBF.Z. 1987-08-22T16:04:44.80 10.0 undecidable manual PN 297 0.0634 -0.03 1.5
--.HAU.Z. 1987-08-22T16:04:32.00 10.0 undecidable manual PN 312 0.0554 -0.5 1.1
--.BSF.Z. 1987-08-22T16:04:28.00 10.0 undecidable manual PN 312 0.0523 0.19 1.6
--.LPG.Z. 1987-08-22T16:04:13.59 10.0 undecidable manual PN 289 0.0427 0.29 1.6
--.LPL.Z. 1987-08-22T16:04:13.41 10.0 undecidable manual PN 290 0.0429 -0.14 1.8
--.CTI.Z. 1987-08-22T16:04:06.12 10.0 undecidable manual SN 332 0.0203 -0.76 0.4
--.TRI.Z. 1987-08-22T16:03:53.70 10.0 undecidable manual SN 14 0.0155 -0.47 0.9
--.FOI.Z. 1987-08-22T16:03:43.97 10.0 undecidable manual PN 354 0.0231 0.7 1
--.CTI.Z. 1987-08-22T16:03:38.39 10.0 undecidable manual PN 332 0.0203 -0.73 0.9
--.PS9.Z. 1987-08-22T16:03:35.50 10.0 undecidable manual PN 261 0.0171 0.88 0.7
--.TRI.Z. 1987-08-22T16:03:32.90 10.0 undecidable manual PN 14 0.0155 0.3 1.7
--.MNS.Z. 1987-08-22T16:03:32.53 10.0 undecidable manual PN 191 0.0151 1.37 0.2
--.PGD.Z. 1987-08-22T16:03:21.50 10.0 undecidable manual PG 261 0.0092 -0.38 1.6
--.ASS.Z. 1987-08-22T16:03:21.90 10.0 undecidable manual PG 199 0.0093 -0.94 0.6
--.CRE.Z. 1987-08-22T16:03:20.84 10.0 undecidable manual PG 244 0.0085 0.43 1.5
--.SS9.Z. 1987-08-22T16:03:19.50 10.0 undecidable manual PG 263 0.0083 -0.53 1.4
--.ARV.Z. 1987-08-22T16:03:12.38 10.0 undecidable manual PG 193 0.0049 -0.77 0.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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